Arithmetic operations can be used to solve this question by using the topic of order of operations. We need to use × and - operators to get the correct answer.
How do we solve inequalities using Arithmetic operations?Many straightforward inequalities can be resolved by adding, taking away, multiplying, or dividing both sides until the variable is all that remains. However, these factors will shift the direction of inequality: Using a negative number to multiply or divide both sides. switching the left and right sides. When resolving an inequality, you can do one of the following:
• Add the same amount to each side;
• Subtract the same amount from each side;
• Multiply or divide each side by the same positive amount. You must flip the inequality sign if you multiply or divide each side by a negative number.
Calculation:5 x (23-18) x (8-4)=100
So we can subtract 23 from 18 where we will get 5 and by subtracting 4 from 8 you will get 4. By multiplying the numbers using × operator you will get the final answer.
Arithmetic operations can be used to solve this question by using the topic of order of operations. We need to use × and - operators to get the correct answer.
Arithmetic operations can be used to solve this question by using the topic of order of operations. We need to use × and - operators to get the correct answer.
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Which of the following sequences is an arithmetic sequence? Why?
1. 3, 7, 11, 15, 19
2. 4, 16, 64, 256
3. 48, 24, 12, 6, 3, ...
4. 1, 4, 9, 16, 25, 36
5. 1, 1/2, 0, -1/2
6. -2, 4, -8, 16, ...
7. 1, 0, -1, -2, -3
8. 1/2, 1/3, 1/4, 1/5, ...
9. 3x, x, x/3, x/9, ...
10. 9.5, 7.5, 5.5, 3.5, ..
Answer: sequences 1,5,7,9,10
Step-by-step explanation:
An arithmetic sequence is defined by a sequence of numbers with a common difference between terms. Technically if x=0 in q9 we have a constant sequence, which by definition is arithmetic. However if x does not equal 0 it is not arithmetic.
A store owner discounted some
crystal vases from $142 to $119.
What is the discount, as a
3
percentage?
und your answer to the nearest percent)
Nolan tart reading at a quarter to 11. He read for 3 hour and 5 minute. What time doe Nolan top reading?
Nolan stops reading at time 2:05 am.
To calculate this, first, calculate the amount of time elapsed since he began reading. Since he started reading at a quarter to 11, then subtract 11:45 pm (a quarter to 12) from the time he began reading, which was 11:45 pm. This gave me an elapsed time of 0 hours and 15 minutes. then added this elapsed time to the total time Nolan read, which was 3 hours and 5 minutes. This gave us a total elapsed time of 3 hours and 20 minutes. Finally, then added this total elapsed time to the start time of 11:45 pm. This gave me the result of 2:05 am as the time Nolan stopped reading.
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3. Imagine that you are taking a ride while on vacation. If the ride service charges Birr 50 to pick you up from the hotel and Birr 10 per km for the trip. What maximum km's you travel if your cost is not more than Birr 1350.
The maximum km's you travel if your cost is not more than Birr 1350. is 130 kilometers.
How to solve the equation?An equation is the statement that illustrates the variables given. In this case, two or more components are taken into consideration to describe the scenario. It is vital to note that an equation is a mathematical statement which is made up of two expressions that are connected by an equal sign.
From the information, the ride service charges Birr 50 to pick you up from the hotel and Birr 10 per km for the trip.
Let the number of kilometers be x.
50 + 10x = 1350
Collect the like terms
10x = 1350 - 50
10x = 1300
Divide
x = 1300 / 10
x = 130
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Using a pencil, pair of compasses, ruler and protractor, construct a triangle with sides 7cm, 6cm and angle between of 75°. Measure the length of the third side to the nearest millimetre.
Answer:
Step-by-step explanation:
We know that there is no rational number which when multiplied with 0, gives 1. Therefore, the rational number 0 has no reciprocal.How many cigarettes (per day) would someone smoke who can hold their breath for 20 seconds?
It is not possible to determine how many cigarettes someone would smoke based on how long they can hold their breath. The ability to hold one's breath is not related to the number of cigarettes smoked per day
Ms. Jenson purchased a car. She borrowed
$18,000 for 3 years at an annual simple interest
rate of 7%. How much interest will she pay if
she pays the entire loan off at the end of the
third year?
A) $1,260.00
C) $3,780.00
B) $21,780.00
D) $12,600.00
Answer: C) $3,780.00
Step-by-step explanation:
1 year = 7% interest rate
3 years = 21% interest rate
21% = 0.21
Take 18000 times 0.21 = $3,780.00
based on a 95% confidence interval and the 6% difference observed in this study, we estimate that the gender difference in u.s. teen depression rates is between 3.2% and 8.5%, with girls having higher rates. 95% of the time this method produces an interval that contains the true difference. a. invalid b. valid
This method is valid since it produces an interval that contains the true difference 95% of the time. The interval for the gender difference in U.S. teen depression rates is between 3.2% and 8.5%, with girls having higher rates.
The confidence interval method is a valid way of estimating a population parameter based on a sample statistic. In this case, the sample statistic is the 6% difference observed in the study. The confidence interval is used to estimate the true difference between the two groups in the population. This method produces an interval that contains the true difference 95% of the time. In this case, the 95% confidence interval for the gender difference in U.S. teen depression rates is between 3.2% and 8.5%, with girls having higher rates. This means that there is a 95% chance that the true difference in depression rates between boys and girls is somewhere between 3.2% and 8.5%. This method is considered valid because it produces an interval that contains the true difference 95% of the time.The 95% confidence interval for the gender difference in U.S. teen depression rates is calculated as follows:
Lower bound: 6% - 1.96*(Standard Error)
Lower bound: 6% - 1.96*(1.5%)
Lower bound: 3.2%
Upper bound: 6% + 1.96*(Standard Error)
Upper bound: 6% + 1.96*(1.5%)
Upper bound: 8.5%
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Find the values of x and y.
1) x = 19.6; y = 12.0
2) x = 23.0; y = 12.0
3) x = 12.0; y = 19.6
4) x = 12.0; y = 23.0
x=12.0; y=19.6
Option 4 is the right answer.
What are the properties of tangent of the circle?
A tangent is correctly formed only if touches the circle at only one point. A tangent never passes through a circle, that is, it never crosses the circle while entering its interior. A tangent is also not known for intersecting the circle at the two different points.
Since, in a circle the radii are equal.
So, OA=OB=x=12
Tangent to a circle is the line that touches the circle at only one point.
The length of tangents from an external point to a circle are equal.
By the theorem,
If two tangents are drawn from an external point of the circle, then they are of equal lengths.
So, AC =BC (by the theorem)
AC and BC look to be tangents- tangents to a circle from a point are congruent.
So, AC is congruent to BC.
Thus, AC=BC=y=19.6
Hence, x=12.0 and y=19.6
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The figure i made up of 4 identical rectangle that form a quare at the center. The area and the breadth of each rectangle are 4/18 m2 and 1/9 m repectively
To calculate the perimeter of the figure, I first calculated the area and the breadth of each rectangle which is 4/18m2 and 1/9m respectively.
The perimeter of the figure can be calculated by adding the perimeter of each rectangle.
Perimeter = 4 x (2 x (1/9 m) + 2 x (4/18 m))
Perimeter = 8 x (1/9 m + 4/18 m)
Perimeter = 104/18 m
Perimeter = 5.78 m
The figure I made up consists of four identical rectangles that form a square at the center. To calculate the perimeter of the figure, I first calculated the area and the breadth of each rectangle which is 4/18m2 and 1/9m respectively. As the four rectangles are identical, I multiplied the perimeter of one rectangle by 4 to get the perimeter of the entire figure. Perimeter of one rectangle is calculated by adding the length and breadth of the rectangle. I multiplied the sum of the length and breadth of a rectangle (1/9 m + 4/18 m) by 8 to get the perimeter of the figure. Finally, I simplified the result to get the perimeter of the figure which is 5.78 m.
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What is the solution to the system of equations? (5, 0) (0, 5) (0, –5) (–5, 0)
Step-by-step explanation:
send the question compeletly .
Identify what type of shape JKL is if J(3, 0),
K(6, 8) and L(-5, 3). The slope of JK = 8/3
and the length of LJ = 8.54.
The shape of JKL is an Isosceles triangle
What is a triangle?A triangle is a three-sided polygon with three vertices. The triangle's internal angle, add up to 180 degrees.
How to find the shape of JKLThe three vertices of shape JKL \which are J(3, 0), K(6, 8) and L(-5, 3), points that the shape is a triangle since triangles have 3 vertices.
The shape is plotted and attached and the graph which is a pictorial representations represents the shape to be a triangle
The plot shows that LJ = JK = 8.5
Also, distance between points J(3, 0) and K(6, 8) is calculated as follows
d = √{(x₂ - x₁)² + (y₂ - y₁)²}
d =√{(3 - 6)² + (0 - 8)²}
d =√{9 + 64}
d = √73
d = 8.54 units
distance between point J(3, 0) and L(-5, 3)
d =√{(3 - (-5))² + (0 - 3)²}
d =√{64 + 9}
d = √73
d = 8.54 units
distance between point K(6, 8) and L(-5, 3)
d =√{(6 - (-5))² + (8 - 3)²}
d =√{121 + 25}
d = √146
d = 12.08 units
since LJ = JK, the triangle is isosceles
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Solve the quadratic equation by using a numeric approach.x squared - 8 x - 16 = 0 a. x = 1 b. x = 5 c. x = -4 d. x = -8
The solution for the quadratic equation; x squared + 8 x + 16 = 0 as required to be determined using a numerical approach is; Choice C; x = -4.
What is the solution for the quadratic equation as given?It follows from the task content that the solution of the quadratic equation is to be determined by using a numerical approach as stated.
On this note, since the standard form quadratic equation takes the form; ax² + bx + c = 0.
To solve, it is important to determine two numbers whose product yields c and sum is; b.
Therefore, for the equation; x² + 8x + 16 = 0; the numbers are; 4 and 4.
Therefore, we have;
x² + 4x + 4x + 16 = 0.
x (x + 4) + 4 (x + 4)
(x + 4) (x + 4) = 0
x = -4.
On this note, the correct answer choice is; Choice C; x = -4.
Complete question; The correct question syntax is; x² + 8x + 16 = 0.
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The measure of <1 is:
570.
620.
119.
None of these choices are correct.
the distribution of colors of candies in a bag is as follows. if two candies are randomly drawn from the bag with replacement, what is the probability that they are the same color?
The probability that both candies are of same color is 0.22
Probability:
Probability means possibility.The value is expressed from zero to one.In other words probability is simply how likely something is to happen.
The distribution of colors of candies in a bag is as follows.
Brown 0.1
Red 0.3
Yellow 0.2
Green 0.2
Orange 0.2
The probability for both candies are Orange.
= 0.2 x 0.2
= 0.04
The probability for both candies are Brown.
= 0.1 x 0.1
= 0.01
The probability for both candies are Yellow.
= 0.2 x 0.2
= 0.04
The probability for both candies are Green.
= 0.2 x 0.2
= 0.04
The probability for both candies are Red.
= 0.3 x 0.3
= 0.09
Now,
The total probability that they are the same color
= 0.04 + 0.01 + 0.04 + 0.04 + 0.09
= 0.22
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which of the following describes the derivative function f'(x) of a quadratic function f(x)
The first derivative of quadratic function is obtained as a linear function.
What is differentiation?The differentiation of a function is defined as rate of change of its value at a point. It can be written as f'(x) = lim h --> 0 (f(x + h) - f(x)) /(x + h - x).
It can also be described as the slope of the tangent of function at a given point.
The general form of a quadratic function is as below,
f(x) = ax² + bx + c
Its first derivative can be written as below,
f'(x) = 2ax + b
The degree of the function f'(x) is 1.
Thus, it is a linear function.
Hence, the function to describe the derivative of quadratic function is linear.
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Divide. Express your answer in simplest form.
8 ÷ 2 4/9
Answer:
3 and 3/11
Step-by-step explanation:
[tex]\frac{8}{2 \frac{4}{9} } \\\\\frac{8}{ \frac{22}{9} } \\\\= 8 / \frac{22}{9} \\\\= \frac{8}{1} / \frac{22}{9} \\\\= \frac{8}{1} * \frac{9}{22} \\\\[/tex]
[tex]=\frac{72}{22} \\\\= 3 \frac{6}{22} \\\\= 3 \frac{3}{11}[/tex]
Step-by-step explanation:
8 ÷ 2 4/9
so, as always with operations involving fractions I recommend to convert mixed numbers to full fractions first :
2 4/9 = (2×9 + 4)/9 = (18 + 4)/9 = 22/9
the division looks then like this :
8 ÷ 22/9
or
8 / 22/9 = 8/1 / 22/9
remember, when we divide by a fraction, then this is the same as a multiplication with the upside-down fraction :
8/1 × 9/22 = 8×9 / 1×22 = 72/22 = 36/11 =
= (3×11 + 3)/11 = 3 3/11
8 ÷ 2 4/9 = 3 3/11
the symbols ÷, /, : have a little bit different semantic meaning in their context, but they all do the same thing : divide.
and they are therefore interchangeable.
Which table of values matches the equation y=3x3?
Answer:
b
Step-by-step explanation:
Solve the equation 10-(x+3)/2=8.
10-(x+3)/2=8 => correct answer is - 8
=> 10 - (x+2) = 8x2
=> 10 - x - 2 = 16
=> 10 - x = 16 + 2
=> 10 - x = 18
=> -x = 18 - 10
=> x = -8
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There is a rectangular patio. If we increase both the length and width by 2 feet, the area of the patio will increase by 38 square feet. If we increase the length by 2 feet and decrease the width by 2 feet, the area of the patio will decrease by 2 square feet. What is the area of the patio?
The 38 square feet increase in the area of the patio following the increase in the length and width by 2 feet and the 2 square feet increase following the increase in the length by 2 feet and decrease in the width by 2 feet indicates that the area of the patio is 70 square feet.
What is the area of a plane shape?The area of a plane figure is the space occupied by the figure of a specified surface upon which it is placed.
Let L represent the length of the patio, and let W represent the width of the patio, we get;
Area of the patio = L × W
(L + 2) × (W + 2) = L·W + 2·L + 2·W + 4 = Area + 38
Therefore; (L + 2) × (W + 2) = L·W + 2·L + 2·W + 4 = L × W + 38
2·L + 2·W + 4 = 38 (subtraction property)
2·L + 2·W = 38 - 4 = 34
2·L + 2·W = 34...(1)
(L + 2) × (W - 2) = L·W - 2·L + 2·W - 4 = Area + 2 = L·W + 2
L·W - 2·L + 2·W - 4 - L·W = L·W + 2 - L·W (Subtraction property)
2·W - 2·L - 4 = 2
2·W - 2·L - 4 + 4 = 2 + 4 = 6 (Addition property)
2·W - 2·L = 6...(2)
The simultaneous equations (1) and (2) are solved as follows;
Adding equation (1) to equation (2), we get;
2·L + 2·W + 2·W - 2·L = 34 + 6 = 40
4·W = 40
W = 40 ÷ 4 = 10
W = 10
The width of the patio, W = 10 feet
2·W - 2·L = 6, therefore;
2 × 10 - 2·L = 6
2·L = 2 × 10 - 6 = 14
L = 14/2 = 7
The length of the patio, L = 7 feet
The area of the patio = L × W
L × W = 7 feet × 10 feet = 70 square feet
The area of the patio = 70 square feet
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SOMEONE PLEASE HELP
Frank has white and blue bulbs with the ratio of 3:5. It has 45 white bulbs. He wants to change the ratio of white and blue bulb to 1:3. He will keep the same total number of bulbs. How many MORE blue bulbs will there be now?
Maintaining same number of bulbs and changing the ratio the number of blue bulbs will be 90
How to find the new number of bulbsFrom the problem we can deduce
Frank has white and blue bulbs with the ratio of 3 : 5
white, w = 3
blue, b = 5
The number of blue bulbs
3 parts = 45
5 parts = ?
cross multiplying
3 * ? = 5 * 18
? = 75
total number of bulbs = 75 + 45 = 120
new ratio is 1 : 3 sum of the ratio is 4
120 / 4 = 30
1 part = 30
3 parts = 3 * 30 = 90
blue bulbs are 90
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Find the linear approximation of the function f(x) = √1-x at a = 0 and use it to approximate the numbers √0.9 and √0.99. (Round your answers to four decimal places.)L(x) =√0.9 ≈√0.99 ≈
The linear approximation of function f(x) = √1-x at a = 0: L(x) = 1 - x/2
√0.9 = 0.95
and √0.99 = 0.995
In this question we need to find the linear approximation of the function f(x) = √(1 - x) at a = 0 and use it to approximate the numbers √0.9 and √0.99
Consider a given function f(x) = √(1 - x)
The slope of given function would be,
f'(x) = -1/2√(1 - x)
We know that the linear approximation function based at 0 is defined by the equation of the tangent line at 0.
so, at x = 0,
f(0) = 1
and slope of the tangent line at 0 : f'(0) = -1/2
The formula to find the linearization at x = a is: L(x) = f(a) + f’(a)(x - a)
the linearization of f(x) = √(1 - x) at a = 0 is L(x) = 1 - x/2
Now we find √0.9
√0.9
= √(1 - 0.1)
= 1 - (0.1/2)
= 0.95
and √0.99
= √(1 - 0.01)
= 1 - (0.01/2)
= 0.995
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during boarding and deplaning of originating and terminating flights, the faa requires how many flight attendants be on board the aircraft?
During boarding and deplaning, the minimum number of flight attendants mandated by the FAA for dispatch must be present on the aircraft.
Before a pilot can work for an airline that operates scheduled flights with aircraft that have 30 or more seats under Part 121, the FAA mandates that they have logged at least 1,500 flying hours. There are a few exclusions, such as the possibility of reducing this requirement by half, to only 750 hours, for former military pilots.
Republic requested that the FAA relax the 1,500-hour requirement for employing pilots due to the severe pilot shortage. The airline said that after 750 hours, pilots will be more than capable of taking the controls of a regional plane because Republic had its own aviation academy.
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pls helpp!!!!!!!!!!!!!!!
Distributive Property
Addition Property of Equality
Simplifying
Division Property of Equality
Simplifying
Type a digit that makes this statement true.
314,10__ is divisible by 10.
Answer:
the digit will be 0 so to get divisible by 10
Select the graph for the solution of the open sentence. Click until the correct graph appears.
4|x| - 1 < -4
Answer:
No solution
Step-by-step explanation:
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By using the fact that the sum of the interior angles of a triangle must be 180°, we will get:
x = 11m∠B = 108°m∠B = 36°m∠D = 36°How to find the value of x?Remember that the sum of the internal angles of a triangle is always equal to 180°, then we can write:
m∠B + m∠C + m∠D = 180°
Then:
13x - 35 + 5x - 19 + 2x + 14 =180
20x -40 = 180
20x = 180 + 40
20x = 220
x = 220/20
x = 11
Now that we know the value of x, we can find the measures of the angles.
m∠B = (13x- 35)° = (13*11 - 35)° = 108°
m∠B = (5x - 19)° = (5*11 - 19)° = 36°
m∠D = (2x + 14)° = (2*11 + 14)° = 36°
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suppose a new infectious disease has just entered into public transmission. an epidemiologist has secured the medical records of 622 cases and 1309 controls. the epidemiologist wishes to estimate the odds ratio for a hypothesized exposure variable. when looking back into the records, the epidemiologist discovers that of the cases, 498 were exposed to the risk factor and of the controls, 872 were exposed. estimate the odds ratio to the nearest thousandth:
We calculated the odd ratio for the given data set is 1.2.
What is odd ratio?
An odd ratio refers to the ratio of the number of the favorable incident to the ratio of the number of unfavorable incidents. In this calculation one ratio is divided by another ratio.
How to calculate odd ratio?
we can determine an odd ratio by dividing the odds of first group by the odds in the second group. In the exposed situation, the cases are divided by controls and for the unexposed situation cases are also divided by controls. Finally, exposed is divided by unexposed.
The above question stated the following data
exposed 498 cases controls 872
unexposed 622 cases controls 1309
We have two group first one is cases and the other is control.
Now odd ratio = (498/872)/(622/1309)
Odd ratio = 1.2
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The table shown below gives the approximate enrollment at the University of Michigan every fifty years. How many more students were enrolled at the University of Michigan in 1950 than in 1900?
Use the quadratic formula to find both solutions to the quadratic equation
given below.
x² + 8x = 20
O A. x - ³-√²7
2
B. X=2
□ C. x = -6-√27
D. x=-10
E. x = -1
F.
X=
-6+ √27
2
Answer:
B. x=2 and D. x=-10
Step-by-step explanation:
We have the quadratic formula: [tex]x=\frac{-b\sqrt{b^{2} -4ac} }{2a}[/tex]
Quadratic equations are in the form [tex]ax^2+bx+c[/tex]
We have to get the equation equal to zero before we can use the quadratic formula so subtract 20 from both sides and we get [tex]x^2+8x-20=0[/tex]
[tex]a=1, b=8, c=-20[/tex]
Now we plug these values into the quadratic equation
[tex]x=\frac{-8\sqrt{8^{2}-4(1)(-20) } }{2(1)}[/tex]
Now we solve for x
[tex]x=\frac{-8\sqrt{64+80} }{2}[/tex]
[tex]x=\frac{-8\sqrt{144} }{2}[/tex]
Now we get two equations because the square root gives us both a positive and a negative answer.
[tex]x=\frac{(-8)+12}{2}[/tex] and [tex]x=\frac{(-8)-12}{2}[/tex]
Let's solve the first one now
[tex]x=\frac{4}{2}[/tex]
[tex]x=2[/tex]
Now the second one
[tex]x=\frac{-20}{2}[/tex]
[tex]x=-10[/tex]
so [tex]x=2[/tex] and [tex]x=-10[/tex]
so the answers are B and D.
Hope this helps!