Describe and compare the solution sets of x 1 plus 3 x 2 minus 2 x 3
equals0
and x 1 plus 3 x 2 minus 2 x 3
equalsminus6
.
Question content area bottom
Part 1
Describe the solution set, xequals
left bracket Start 3 By 1 Matrix 1st Row 1st Column x 1 2nd Row 1st Column x 2 3rd Row 1st Column x 3 EndMatrix right bracket,
of x 1 plus 3 x 2 minus 2 x 3
equals
0
in parametric vector form. Select the correct choice below and fill in the answer boxes within your choice.
(Type an integer or fraction for each matrix element.)
Answers
To the right of 1.61, 9.24, and 15.09, the area under the X² curve with five degrees of freedom is 0.078, 0.0001, and 0, respectively.
Describe area?A surface's area can be measured in two dimensions by multiplying its length by its breadth. It is employed to determine the size of a room or a plot of land. The size of a shape, like a circle or a square, can also be determined using area. Area is frequently expressed in square metres or square feet.
Here in the question,
(a)1.61
The following formula can be used to determine the area under the 1.61-degree curve with five degrees of freedom to the right:
Area = 1 - Φ(x; df)
Where df stands for the degrees of freedom and (x; df) is the cumulative distribution function of the chi-square distribution.
For df = 5, Φ(1.61; 5) = 0.922.
As a result, 1 - 0.922 = 0.078 represents the area under the 1.61-degree curve with 5 degrees of freedom to the right.
(b) 9.24
For df = 5, Φ(9.24; 5) = 0.9999.
As a result, 1 - 0.9999 = 0.0001 is the value of the area under the X² curve with 5 degrees of freedom to the right of 9.24.
(c) 15.09
For df = 5, Φ(15.09; 5) = 1.
As a result, 1 - 1 = 0 represents the area under the 15.09-based X² curve with 5 degrees of freedom to the right.
The area under the X² curve with five degrees of freedom to the right of 1.61, 9.24, and 15.09, respectively, is 0.078, 0.0001, and 0.
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1. The solution set can be written as:
{x = [t, s, (3/2)t + (3/2)s] : t, s ∈ R}
2. The solution set can be written as:
{x = [t, s, (3/2)t + (3/2)s - 3] : t, s ∈ R}
What is equation?A mathematical definition of an equation is a claim that two expressions are equal when they are joined by the equals sign ("="). For illustration, 2x - 5 = 13. 2x - 5 and 13 are expressions in this case. These two expressions are joined together by the sign "=".
To find the solution set in parametric vector form for the equation x₁ + 3x₂ - 2x₃ = 0, we can write:
x₁ = t (arbitrarily setting x1 = t)
x₂ = s
x₃ = (3/2)t + (3/2)s
where t and s are arbitrary parameters.
Therefore, the solution set can be written as:
{x = [t, s, (3/2)t + (3/2)s] : t, s ∈ R}
This is a set of infinitely many vectors that lie on a plane in three-dimensional space.
Part 2
For the equation x₁ + 3x₂ - 2x₃ = -6, we can rewrite it as x₁ + 3x₂ - 2x₃ = 0 - 6, which is of the same form as the equation in Part 1, but with a constant on the right-hand side.
Using the same method as in Part 1, we can find the solution set as:
x₁ = t
x₂ = s
x₃ = (3/2)t + (3/2)s - 3
where t and s are arbitrary parameters.
Therefore, the solution set can be written as:
{x = [t, s, (3/2)t + (3/2)s - 3] : t, s ∈ R}
This is also a set of infinitely many vectors that lie on a different plane in three-dimensional space.
Comparing the two solution sets, we can see that they are both sets of infinitely many vectors and have a similar form (parametric vector form). However, they lie on different planes in three-dimensional space, and the second set is shifted downward by 3 units along the third axis.
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Related Questions
the widget store owner tells you that 200 customers arrive and purchase a widget from the store each day. assuming you must sell 30 of your widgets to cover the transportation costs and given the probability 0.1667, use a binomial distribution of at least covering the transportation costs (that is the probability of selling at least 30 widgets). write your answer as a probability (not a percent) rounded to 4 decimals.
Answers
Note that the probability of selling at least 30 widgets is 0.0468.
How is this so?Given the information provided, the problem requires us to use a binomial distribution to estimate the probability of selling at least 30 widgets.
A binomial distribution is a probability distribution that describes the number of successes in a set number of trials.
Where n = 200 (the number of people that visit the store and buy a widget each day) and
p = 0.1667 (likelihood of a client purchasing a widget)
We are looking for the probability of selling at least 30 widgets, which is equivalent to finding the probability of selling 30 or more widgets.
This can be calculated using the cumulative probability formula for a binomial distribution:
P(X >= 30) = 1 - P(X < 30) = 1 - Σ (nCx)(p^x)(1-p)^(n-x) from x=0 to 29
We can use a calculator or a software to calculate this probability. The result is 0.0468 rounded to 4 decimals.
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If apples cost $3.12 per pound and you have a bag that weighs 3pounds and 8 ounces, how much will you pay for those apples?
Answers
Answer: $10.92
Step-by-step explanation:
Since there are 16 ounces in a pound, 8 ounces would be equivalent to half a pound. Thus, 3 pounds and 8 ounces = 3.5 pounds.
Since apples cost $3.12 per pound and we have 3.5 pounds, the total cost would be $3.12*3.5 pounds = $10.92
population of a certain inner-city area is estimated to be declining according to the model P(1) = 108,000€-0.011, where t is the number of years from the present What does this model predict the population will be in 7 years? Round to the nearest person.
Answers
The model predicts that the population of the inner-city area will be 107,079 people in 7 years
How is the population of an area or country determined?The number of inhabitants in a given region is characterized as the quantity of individuals normally living around there, estimated on 1 January in a given year.
The given model for the number of inhabitants in the rough part of town region is:
P(t) = 108,000 - 0.011t
where t is the number of years from the present and P(t) is the estimated population at time t.
To find the predicted population in 7 years, we can substitute t=7 into the given model and evaluate:
P(7) = 108,000 - 0.011(7)
P(7) = 108,000 - 0.077
P(7) = 107,923
As a result, the model projects that the inner-city area will have a population of 107,079 people in seven years, rounded to the nearest person.
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Solve the following equation for θ on the interval [0,2π).
2sec(θ)+3=0
Round your answers to the nearest thousandth of a radian.
there should be 2 answers
Answers
We can start by isolating the secant term and then taking the inverse cosine of both sides. Remember that the inverse cosine function only gives results on the interval [0,π], so we will need to adjust our solutions accordingly:
2sec(θ) + 3 = 0
2sec(θ) = -3
sec(θ) = -3/2
cos(θ) = -2/3
θ = ±cos⁻¹(-2/3)
Using a calculator, we find:
θ ≈ 2.302, 4.981 radians
What is the value of 0 in the equation?However, we need to adjust these solutions to be within the interval [0,2π). Since cos(x) = cos(2π - x), we can add 2π to the negative solution to get an equivalent positive solution:
θ ≈ 2.302, 7.438 radians
Rounding to the nearest thousandth, we get:
θ ≈ 2.302, 7.438 radians
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If you invest 40% of your money in A and 60% in B, what is the expected return and standard deviation of your portfolio?
Answers
Answer:
3.15%
Step-by-step explanation:
To find the expected return and standard deviation of a portfolio that is invested in two assets A and B, we need to know the expected returns and standard deviations of those assets, as well as the correlation between them.
Let's assume that the expected return and standard deviation of asset A are 10% and 5%, respectively, and that the expected return and standard deviation of asset B are 8% and 3%, respectively. Let's also assume that the correlation between the two assets is 0.5.
To find the expected return of the portfolio, we can use the following formula:
Expected return of portfolio = weight of A * expected return of A + weight of B * expected return of B
where the weights are the proportions of the portfolio invested in each asset:
weight of A = 40% = 0.4
weight of B = 60% = 0.6
Expected return of portfolio = 0.4 * 10% + 0.6 * 8%
Expected return of portfolio = 9.2%
Therefore, the expected return of the portfolio is 9.2%.
To find the standard deviation of the portfolio, we can use the following formula:
Standard deviation of portfolio = sqrt(weight of A^2 * variance of A + weight of B^2 * variance of B + 2 * weight of A * weight of B * correlation * standard deviation of A * standard deviation of B)
where the variances are the square of the standard deviations of each asset:
variance of A = (5%)^2 = 0.0025
variance of B = (3%)^2 = 0.0009
Standard deviation of portfolio = sqrt(0.4^2 * 0.0025 + 0.6^2 * 0.0009 + 2 * 0.4 * 0.6 * 0.5 * 0.05 * 0.03)
Standard deviation of portfolio = 0.0315 or 3.15% (rounded to two decimal places)
Therefore, the standard deviation of the portfolio is 3.15%.
Can you mark me asbrainliest if you appreciate my effort just for favor. Thank you^^
Find the circumference
Answers
Answer:
25.12 m (or 25.13 m)
Step-by-step explanation:
Recall the formula for the circumference of a circle:
[tex]2\pi r[/tex]
where r is the radius.
We are given that the radius is 4 m, so let's plug that into our formula:
[tex]2\pi r=\\2\pi *4=\\8\pi[/tex]
[tex]\pi[/tex] is approximately 3.14, so let's multiply 8 m by 3.14. We get:
25.12
So, the circumference is about 25.12 m.
(if you multiply by pi itself using a calculator, the answer is about 25.13 m)
Which graph best represents a line that passes
through the values in the table below?
X. Y
0. 1
1. -2
2. - 5
Answers
Answer:
y = -3x + 1
Step-by-step explanation:
We are given a couple ordered pairs from this table. Lets use the slope formula so we can find the slope of this line:
[tex]\frac{y_2-y_1}{x_2-x_1}[/tex]
Y2, y1, x2, and x1 are constants (points on the line). To make it easy, lets take the coordinates (0,1) and (1,-2). Then we just plug these points in and evaluate.
[tex]\frac{-2-1}{1-0}[/tex]
Evaluate both sides of the fraction.
[tex]\frac{-3}{1} =-3[/tex]
Now that we have the slope, we are given the y intercept coordinate, (0,1) which means the y-intercept is 1. To write it in y = mx + b form, we just plug in our numbers and were good to go.
[tex]y=-3x+1[/tex]
Richard is saving money for a down payment on a car. He opens a savings account at his local bank and deposits $500. He models his savings plan with the equation y = 200x + 500 based on his current monthly savings rate.
Answers
Here the correct statements can be
The y-intercept represents D) the starting amount in his savings account.
The slope represents C) the change in the dependent variable with respect to the independent variable.
What is meant by y-intercept?
The y-intercept is the point where a line intersects the y-axis on a graph. It represents the value of the dependent variable when the independent variable is zero.
What is meant by the term slope?
The slope is a measure of the steepness of a line on a graph. It is calculated by dividing the change in the y-coordinate by the change in the x-coordinate between two points on the line.
According to the information
The y-intercept of the linear model y = 200x + 500 represents the starting amount in Richard's savings account.
The slope of the linear model y = 200x + 500 represents the change in the dependent variable (y, the savings amount) with respect to the independent variable (x, the number of months). Specifically, the slope of 200 means that for every additional month, Richard's savings will increase by $200.
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50 Points! Multiple choice algebra graphing question. Which square root function is represented by the graph? Photo attached. Thank you!
Answers
A square root function that is represented by the graph include the following: A. f(x) = √(4x + 8).
What is a square root function?In Mathematics and Geometry, a square root function can be defined as a type of function that typically has this form f(x) = √x, which basically represent the parent square root function i.e f(x) = √x.
In Mathematics and Geometry, a horizontal translation to the left is modeled by this mathematical equation g(x) = f(x + N) while a vertical translation to the positive y-direction (downward) is modeled by this mathematical equation g(x) = f(x) - N.
Where:
N represents an integer.g(x) and f(x) represent functions.Therefore, the required square root function is given by;
f(x) = √(4x + 8)
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its for 100 points please
Answers
Answer: The first choice.
Step-by-step explanation:
As you can see in the diagram, the line passes through the points[tex](x, y) = (4, -4)[/tex] and [tex](x, y) = (-4, 8)[/tex] . Thus, the slope of the line is [tex]\frac{8-(-4)}{-4-(4)} = \frac{12}{-8} = -\frac{3}{2}.[/tex] Thus, the correct answer is the first choice, as that line has a slope of [tex]-\frac64=-\frac32.[/tex]
The relationship between the actual air temperature x (in
degrees Fahrenheit) and the temperature y adjusted for wind
chill (in degrees Fahrenheit, given a 30 mph wind) is given by
the following formula:
y = -26 +1.3x
Estimate the actual temperature if the temperature adjusted
for wind chill is -35 degrees Fahrenheit.
Answers
The estimated actual temperature (x) when the temperature adjusted for wind chill (y) is -35 degrees Fahrenheit =
approximately -6.92 degrees Fahrenheit.
How do we estimate the actual temperature?To estimate the actual temperature (x) when the temperature adjusted for wind chill (y) is given as -35 degrees Fahrenheit using the formula y = -26 + 1.3x, we can substitute y with -35 and solve for x.
-35 = -26 + 1.3x
Adding 26 to both sides to isolate the x term:
-35 + 26 = 1.3x
-9 = 1.3x
Dividing both sides by 1.3 to solve for x:
x = -9 / 1.3
x ≈ -6.92
Thus, the estimated actual temperature (x) when the temperature adjusted for wind chill (y) is -35 degrees Fahrenheit would be approximately -6.92 degrees Fahrenheit.
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The estimated actual temperature is -6.92 degrees Fahrenheit.
The estimated temperatureWe can use the given formula to solve for x when y is known. Rearranging the formula, we get:
x = (y + 26) / 1.3
Substituting y = -35 into this formula, we get:
x = (-35 + 26) / 1.3
x = -6.92 (rounded to two decimal places)
Therefore, the estimated actual temperature is -6.92 degrees Fahrenheit.
The term actual temperature typically refers to the true or measured temperature of an object, substance, or environment. It is the temperature that is currently present in a given location or situation, as opposed to a predicted or estimated temperature. The actual temperature can be measured using a thermometer or other temperature sensing device.
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A study of a country's colleges and universities resulted in the demand equation q = 20,000 − 2p, where q is the enrollment at a public college or university and p is the average annual tuition (plus fees) it charges.† Officials at Enormous State University have developed a policy whereby the number of students it will accept per year at a tuition level of p dollars is given by q = 8,500 + 0.5p. Find the equilibrium tuition price p and the consumers' and producers' surpluses at this tuition level. What is the total social gain at the equilibrium price? HINT [See Example 3.]
Answers
The equilibrium tuition price p and the consumers' and producers' surpluses at this tuition level is 11400
Find the equilibrium tuition price p and the consumers' and producers' surpluses at this tuition levelFrom the question, we have the following parameters that can be used in our computation:
q = 20,000 − 2p
q = 8,500 + 0.5p
The equilibrium tuition price p and the consumers' and producers' surpluses at this tuition level is when q = q
So, we have
20,000 − 2p = 8,500 + 0.5p
Evaluate the like terms
2.5p = 28500
Divide by 2.5
p = 28500/2.5
Evaluate
p = 11400
Hence, the equilibrium tuition price p is 11400
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a senior math contest began at 6:00 am on a Sunday and ended 1000 min later then did the contest get over
Answers
The senior math contest ended at 10:40 pm on Sunday
What time did the contest get overIf the senior math contest began at 6:00 am on a Sunday and ended 1000 minutes later, we can add 1000 minutes to the starting time to find the ending time.
To do this, we can first convert the starting time of 6:00 am into minutes. There are 60 minutes in one hour, so 6:00 am is equivalent to:
6 hours × 60 minutes/hour = 360 minutes
Now, we can add 1000 minutes to this starting time:
360 minutes + 1000 minutes = 1360 minutes
Finally, we can convert this total number of minutes back into hours and minutes.
Since there are 60 minutes in one hour, we can divide 1360 minutes by 60 to get:
1360 minutes ÷ 60 = 22 hours and 40 minutes
Therefore, the senior math contest ended at 10:40 pm on the day (Sunday).
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1. Mona wants to run more than 60
miles this week. She ran a total of
24 miles during the first 4 days of the
week. Which number line represents
the number of miles Mona must
run each day if she wants to meet
her goal?
Answers
On sοlving the prοvided questiοn we can say that equatiοn Miles already ran -target distance = Miles still tο run 60 - 24 = 36 miles left tο run
What is equatiοn?A mathematical equatiοn is a fοrmula that links twο statements and uses the equals sign (=) tο indicate equality. In algebra, an equatiοn is a statement that demοnstrates the equality οf twο mathematical expressiοns.
We may begin by subtracting the miles Mοna has already ran frοm her οbjective distance tο get the number οf miles she must run each day tο accοmplish her gοal:
Miles already ran - target distance = Miles still tο run
60 - 24 = 36 miles left tο run
Since there are three days left in the week, Mοna must run:
36 miles ÷ 3 days = 12 miles per day
On a number line, we may begin with 24 and add 12 fοr each remaining day:
24 ------ 36 ------ 48 ------ 60
Tο represent this οn a number line, we can start at 24 and add 12 fοr each remaining day:
|---|---|---|---|---|---|---|
0 5 10 15 20 25 30 35 40
^ ^ ^
Day 5 6 7
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Which equations represent circles that have a diameter of 12 units and a center that lies on the y-axis? Select two options. x2 + (y – 3)2 = 36 x2 + (y – 5)2 = 6 (x – 4)² + y² = 36 (x + 6)² + y² = 144 x2 + (y + 8)2 = 36
Answers
The correct option are - A. x² + (y – 3)² = 36 and E. x² + (y + 8)² = 36 , for the equation of circle.
Explain about the equation of circle:The standard form equation for just a circle, which is (x - s)² + (y - t)² = r², is used to formulate our equation if we assume a generic centre point like (s,t)and r is the radius of circle.
By simply expanding basic binomial squares in their regular form and merging like words, circles can likewise be presented in expanded form.
Now for the given data:
Diameter of circle = 12 unitsRadius r = 12/2 = 6 unitscentre lies on the y axis, (s,t) = (0,t)Put the values in the standard form of the circle:
(x - s)² + (y - t)² = r²,
(x - 0)² + (y - t)² = 6²,
x² + (y - t)² = 36
Where 't' can be any integer.
Thus, the options that satisfy the stated conditions are-
A. x² + (y – 3)² = 36 : here t = 3
and E. x² + (y + 8)² = 36 ; here t = - 8.
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Correct question:
Which equations represent circles that have a diameter of 12 units and a center that lies on the y-axis?
Select two options.
A. x² + (y – 3)² = 36
B. x² + (y – 5)² = 6
C. (x – 4)² + y² = 36
D. (x + 6)² + y² = 144
E. x² + (y + 8)² = 36
Owen has earned 19 out of the 50 points for his service
grade. He must submit the rest of these points by the last
day of the grading period. How many more points must he
earn to meet his goal?
Answers
The number of more points that Owen must earn to meet his goal would be = 31 points.
How to calculate the extra points needed by Owen?The total number of point expected to be scored by Owen = 50 points
The total amount of points that Owen has earned so far = 19 point.
The amount of points that Owen should earn more to meet up with the points expected of him = 50-19= 31 points.
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Which classification best represents a triangle with side lengths 6 cm, 10 cm, and 12 cm?
acute, because 62 + 102 < 122
acute, because 6 + 10 > 12
obtuse, because 62 + 102 < 122
obtuse, because 6 + 10 > 12
Answers
Answer:
To determine the classification of a triangle based on its side lengths, we can use the Pythagorean theorem, which states that in a right triangle, the sum of the squares of the lengths of the legs (the shorter sides) is equal to the square of the length of the hypotenuse (the longest side).
For this particular triangle with side lengths 6 cm, 10 cm, and 12 cm, we can apply the Pythagorean theorem to determine whether the triangle is acute (all angles are less than 90 degrees), obtuse (one angle is greater than 90 degrees), or right (one angle is equal to 90 degrees).
Using the Pythagorean theorem, we find:
6^2 + 10^2 = 136
12^2 = 144
Since 136 is less than 144, we know that 6 cm, 10 cm, and 12 cm are the side lengths of a triangle that is obtuse (one angle is greater than 90 degrees), because the longest side (the hypotenuse) is greater than the sum of the squares of the lengths of the other two sides.
Therefore, the correct answer is: obtuse, because 6^2 + 10^2 < 12^2.
Someone please help I have no idea what I’m doing
Answers
The compositions are:
f * f(x) = x⁴ - 2x²
g * g(x) = 81/64x
How did we get the values?To find the composition f * f, we start by substituting f(x) into f(x) wherever we see x:
f * f (x) = f(f(x)) = f(x² - 1) = (x² - 1)² - 1
Expanding the expression, we get:
f * f (x) = x⁴ - 2x² + 1 - 1 = x⁴ - 2x²
So, f * f(x) = x⁴ - 2x².
To find the composition g * g, we substitute g(x) into g(x) wherever we see x:
g * g (x) = g(g(x)) = g(9/8x) = 9/8(9/8x) = 81/64x
So, g * g(x) = 81/64x.
Therefore, the compositions are:
f * f(x) = x⁴ - 2x²
g * g(x) = 81/64x
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The text format of the question is:
Suppose that the functions f and g are defined as follows.
f(x) = x² - 1
g(x) = 9/8x, x ≠
Find the compositions f * f and g * g
Simplify your answers as much as possible.
(Assume that your expressions are defined for all x in the domain of the composition. You do not have to indicate the domain)
During a sale the regular price of a pair of running shoes is reduced by 20%. If the sales price is $64 what is the regular price of the running shoes
Answers
The regular price of the running shoes is $80.
Let's denote the regular price of the running shoes as P. We know that during the sale, the price is reduced by 20%, which means the sales price is 80% (100% - 20%) of the regular price.
Given that the sales price is $64, we can set up the equation:
0.8P = $64
To find the regular price P, we divide both sides of the equation by 0.8:
P = $64 / 0.8
P = $80
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Students must purchase a ticket to attend the show. The committee wants to have $425 remaining from ticket sales, after paying for all expenses.
Based on this information, what should be the price of each ticket? Explain your reasoning. PLS HURRY
Answers
The cost of an individual ticket is contingent upon the overall expenditure of the performance and the quantity of tickets purchased.
What is ticket selling?Ticket sales refer to the purchase of one or multiple admission passes to an occasion, which may be facilitated either through the Event Management System, online, mobile app, third-party voucher providers (such as Groupon), or physically, among other options.
Based on the fact that there is no much details on the ticket sales, it present ]an obstacle in knowing the number cost of individual tickets. To determine the cost of each ticket, we need to have the total expenditure or the quantity of tickets sold.
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24. Which description describes the solutions to this inequality?
9 > 52
A. all the possible numbers that are smaller than twenty-five
B. all the positive numbers that are greater than ten
C. all the positive numbers that are larger than twenty-five
D. all the possible numbers that are smaller than ten
Answers
The description describes the solutions to this inequality in all the positive numbers that are greater than ten. The correct option is B.
What is inequality?Relationships between two expressions that aren't equal to one another are known as inequalities. Social justice theories are fundamentally based on the idea of inequality, which is the condition of not being equal, especially in terms of status, rights, and opportunities.
The given equation is 9 > 52.
everything that is positive and bigger than 10
Therefore, the correct option is B. All the positive numbers are greater than ten.
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You have $2000 to deposit into a bank account that earns simple interest. Use interest rates at local banks to find how much interest different accounts earn after four years. Compare the different accounts and decide which account you should use. Consider other fees associated with each account when making your decision.
Answers
Bank B would be the best option since it offers a higher interest rate than Bank A and does not have any fees.
How to compare different bank accounts?To compare different bank accounts, we need to know the interest rates offered by each bank. Let's assume that we have three local banks, each with a different interest rate: Bank A offers 2% interest, Bank B offers 2.5% interest, and Bank C offers 3% interest.
Using the formula for simple interest, we can calculate the amount of interest earned on the initial deposit of $2000 over four years for each bank:
Bank A: 2% interest per year
After four years, the interest earned is:
$2000 x 2% x 4 = $160
Bank B: 2.5% interest per year
After four years, the interest earned is:
$2000 x 2.5% x 4 = $200
Bank C: 3% interest per year
After four years, the interest earned is:
$2000 x 3% x 4 = $240
So, Bank C offers the highest interest rate and would earn the most interest over the four-year period. However, we also need to consider any fees associated with each account. Let's assume that Bank A and Bank B have no fees, but Bank C charges a $50 annual fee.
Bank A: Total amount after four years = $2000 + $160 = $2160
Bank B: Total amount after four years = $2000 + $200 = $2200
Bank C: Total amount after four years = $2000 + $240 - $50 x 4 = $1960
Even though Bank C offers the highest interest rate, the annual fee significantly reduces the total amount earned over four years. Therefore, Bank B would be the best option since it offers a higher interest rate than Bank A and does not have any fees.
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You visit an aquarium. One of the tanks at the aquarium holds 450 gallons of water. What should the third dimension be so that the diagram shows one possible set of dimensions of the tank?
(1 gal =
231 in.3
)
With a width of 21 inches and a height of 33 inches, the length needs to be
inches.
Answers
The length of the tank should be approximately 150.4 inches in order to hold 450 gallons of water, with a width of 21 inches and a height of 33 inches.
How to determine the length of the tankTo find the length of the tank, we first need to convert the volume of water from gallons to cubic inches, using the given conversion factor:
1 gallon = 231 cubic inches
Therefore, the volume of water in the tank is:
450 gallons * 231 cubic inches/gallon = 103950 cubic inches
We can then use the formula for the volume of a rectangular prism to find the length of the tank:
Volume = length * width * height
Substituting the given dimensions, and solving for the length, we get:
103950 cubic inches = length * 21 inches * 33 inches
length = 103950 cubic inches / (21 inches * 33 inches)
length ≈ 150.4 inches
Therefore, the length of the tank should be approximately 150.4 inches in order to hold 450 gallons of water, with a width of 21 inches and a height of 33 inches.
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A woman has a total of $7,000 to invest. She invests part of the money in an account that pays 5%
per year and the rest in an account that pays 12% per year. If the interest earned in the first year is
$560, how much did she invest in each account?
Answers
The woman invested $4,000 at 5% and $3,000 at 12%.
To solve this problemLet x be the amount invested at 5% and y be the amount invested at 12%. Then we have:
x + y = 7,000 (equation 1)
0.05x + 0.12y = 560 (equation 2)
To solve for x and y, we can use substitution method :
From equation 1, we have y = 7,000 - x. Substituting this into equation 2, we get:
0.05x + 0.12(7,000 - x) = 560
Simplifying and solving for x, we get:
0.05x + 840 - 0.12x = 560
-0.07x = -280
x = 4,000
Substituting x = 4,000 into equation 1, we get:
4,000 + y = 7,000
y = 3,000
Therefore, the woman invested $4,000 at 5% and $3,000 at 12%.
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A right triangle has sides 3 and 5 . Use the Pythagorean Theorem to find the length of the hypotenuse.
Answers
The manager of the San Marcos Sliders baseball team keeps track of the number of runs the team scores each season. This histogram shows the distribution of runs scored per game this season.
Complete the sentences.
The distribution of runs scored is best described as
. So, the mean absolute deviation
an appropriate measure of variation.
Answers
It shtbe noted that 68% of the data should fall in the interval from 616 to 756.
How to explain the informationz score for values:
z = (X-µ)/σ = (616-686)/70 = -1
z = (X-µ)/σ = (756-686)/70 = 1
Approximately 68% of the data should fall in the interval from 616 to 756.
b) B. 71% of the data falls in the interval from 616 to 756. The estimate is very close to the value predicted by the Empirical Rule.
c) (µ - 2*σ, µ + 2*σ)
(686 - 2*70, 686 + 2*70)
(546, 826)
You expect to find about 95% of the teams between the two values 546 and 826.
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Is this quadrilateral a parallelogram?
Answers
Answer:
Yes it is a parallelogram because opposite sides of this quadrilateral are equal.
Q13
Steve receives £200 each month from his parents as an allowance.
20% of this amount is spent on his football magazine subscription, and the rest he spends on football stickers,
sweets, and fizzy drinks in the ratio of 5: 2: 1.
How much does Steve spend on football stickers?
Answers
Step-by-step explanation:
Steve spends 20% of £200 = 0.2 * £200 = £40 on his football magazine subscription.
The remaining amount he spends on football stickers, sweets, and fizzy drinks in the ratio of 5:2:1, which means that for every 5 parts he spends on football stickers, he spends 2 parts on sweets and 1 part on fizzy drinks.
So, let's call the amount he spends on football stickers "5x". Then, the amount he spends on sweets is "2x" and the amount he spends on fizzy drinks is "x".
The total amount he spends on these items is:
5x + 2x + x = 8x
We know that he has £200 - £40 = £160 left after paying for his magazine subscription. So, we can set up an equation:
8x = £160
Solving for x, we get:
x = £20
Therefore, Steve spends:
5x = 5 * £20 = £100
on football stickers.
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Answer:
5 : 2 : 1 = 100 : 40 : 20
Step-by-step explanation:
10% = 20 (200÷10=20)
20% = 40 (double both sides)
take away £40 from £200 = £160
£160 is left over after buying the magazine subscription
______________________________
add the radio all together = 5:2:1 = 8
divide 8 by 160 = £20
That now means 1 = 20
5 : 2 : 1
we already found 1, now to find 2 and 5
you times 2
1 = 20
2 = 40
and then do the same for 5
1 = 20
5 = 100
To know this is right, 100 + 40 + 20 = 160 the original number for the money left over.
Estimate how much a paramedic will make over 30 years
Answers
Answer:
The salary of a paramedic can vary depending on several factors such as location, experience, and employer. According to the Bureau of Labor Statistics, the median annual wage for paramedics and EMTs was $36,650 in May 2020.
Assuming a constant annual income of $36,650 over 30 years, the estimated total income for a paramedic would be:
$36,650 x 30 = $1,099,500
However, it is important to note that this is just an estimate and does not take into account potential salary increases, promotions, or changes in the job market.
The square of y decreased by the quotient 28 and 7
Answers
Answer:
y^2 - 4
Step-by-step explanation:
We are given the statement,'The square of y decreased by the quotient of 28 and 7'. i.e. Subtracting the quotient 28/7 = 4 from y^2 . i.e. y^2 - 4
Hence, the expression which represents the given statement is y^2 - 4 .