Answer: Im sorry I cant help im just doing this for points
Step-by-step explanation:
The correct answer is [tex]H_0: p = 0.24 and H_1: p < 0.24[/tex].
How to write this in maths notationIn mathematical notation, the null hypothesis can be written as:
H_0: p = 0.24
where p is the proportion of uninsured motorists in Florida.
The alternative hypothesis can be written as:
H_1: p < 0.24
This means that we are testing the hypothesis that the proportion of uninsured motorists has decreased to a level that is less than 24%.
The null hypothesis is the default assumption, and we will only reject it if we have enough evidence to support the alternative hypothesis. In this case, we would need to collect data that suggests that the proportion of uninsured motorists has decreased to a level that is significantly less than 24%.
The correct answer is [tex]H_0: p = 0.24 and H_1: p < 0.24[/tex].
The other options are incorrect because they either do not specify the direction of the hypothesis test (i.e., whether we are testing whether the proportion of uninsured motorists has increased or decreased) or they are not supported by the given information.
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TRUE/FALSE. the linear probability model always contains heteroskedasticity when the dependent variable is a binary variable unless all of the slope parameters are zero.
The Linear probability model always contains heteroskedasticity when the dependent variable is binary unless all of the slope parameters are zero. It's true.
Probability is the branch of mathematics concerning numerical descriptions of how probable an event is to do, or how likely it's that a proposition is true. The probability of an event is a number between 0 and 1, where, roughly speaking, 0 indicates the impossibility of the event and 1 indicates certainty.
In statistics, a direct probability model is a special case of a double retrogression model. Then the dependent variable for each observation takes values that are moreover 0 or 1.
The introductory sapience is that the direct probability model can be used whenever the relationship between probability and log odds is roughly direct over the range of modeled chances.
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has evolved from simple counting, measurement and calculation, and the systematic study of the shapes and motions of physical objects, through the application of abstraction, imagination and logic, to the broad, complex and often abstract discipline we know today
Mathematics is a discipline that has a long and rich history. It has evolved over time from simple counting and measuring to a broad and complex subject that is used in many fields. The development of mathematics has been driven by the need to solve practical problems, as well as the desire to understand the underlying patterns and structures of the world around us.
Early forms of mathematics, such as counting and measuring, were developed by ancient civilizations to solve practical problems such as trade, construction, and agriculture. These early forms of mathematics were based on empirical observations and were often tied to the physical world.
As mathematics developed, it began to include more abstract concepts such as numbers, geometry, and algebra. These abstract concepts allowed for the development of more complex mathematical techniques and the ability to solve a wider range of problems.
Today, mathematics is used in a wide range of fields including science, engineering, economics, and even art. It is an essential tool for understanding and solving problems in the world around us.
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If you saw 12-1 / 16''off a board that is 20-3/4 " long, the length of the remaining board will be
8 -1/4''
8 -11 /16''
11 -1/4''
17 -3/8''
The remaining length of the board is 8 11/16 feet.
Length of board = 20 3/4 feet
Length that was cut off = 12 1/16 feet
To obtain the length of the remaining part of the board ;
We subtract the length that was cut off from the total length of the board ;
(Total length - length that was cut off)
20 3/4 = 83/4
12 1/16 = 193/16
(83/4 - 193/16) =
L. C. M of 4 and 16 = 16
(332 - 193)/16 = 139/16
139/16 = 8 11/16 feet
The remaining length of the board is 8 11/16 feet.
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Solve for the Lengths of XZ and YZ
Answer:
we know that
XY+YZ=XZ
solve for YZ
YZ=XZ-XY
XZ=21
XY=8
so
YZ=21-8
YZ=13
therefore
the answer is
YZ=13
Step-by-step explanation:
For linear function f, f(2)=0 and f(4)=-6.
Write function f in slope-intercept form.
The function f(x) in slope-intercept form is Y= −3X−10.
In the given question, linear function f, f(2)=0 and f(4)=-6.
We have to write function f(x) in slope-intercept form.
We have to find equation for f(x)
f(2)=0, and f(4)=−6,
Now we have to find slope
Slope(m)=−6−0/4−2
m = −6/2
m=−3
Now the general equation of line is
Y=MX+C
where M = slope of the line, C is the Y intercept value, X is independent variable and Y is dependent variable.
At point (2,4)
4 = (−3)×(2)+C
4 = −6+C
Add 6 on both side, we get
C = 10
Equation for f(x) is.
Y=(−3)X−(10)
Y= −3X−10
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following table. asset expected return, r standard deviation, s x 10% 5% y 15 8 a. calculate the average return over the 4-year period for each of the three alternatives. b. calculate the standard deviation of returns over the 4-year period for each of the three alternatives. c. use your findings in parts a and b to calculate the coefficient of variation for each of the three alternatives. d. on the basis of your findings, which of the three investment alternatives do you think performed better over this period?
Each of the three choices has a 12.25 standard deviation average returns during a 4-year timeframe.
In order to find standard deviation on a mutual fund, add up the rates of return for the period you want to measure and divide by the total number of rate data points to find the average return and take each individual data point and subtract your average to find the difference between reality and the average finally we have to square each of this numbers and then add them up.
Here, we had provided the predicted return on the asset, the standard deviation,
s x 10% 5%
y 15 8
Here we need to calculate the standard deviation of returns over the 4-year period for each of the three alternatives.
As per the definition of the standard deviation, we have identified that the values,
Count, N: 2
Sum, Σx: 23
Mean, μ: 11.5
Variance, σ2: 12.25
Here, we must embrace the alternative hypothesis that seems to be rejected hypothesis. The rejection zone is indicated by the z score of -0.40.
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Help quick please!! I don’t know if it’s D or C??
Answer:
I think the answer is B
Step-by-step explanation:
1.2 * 10^6 is 1,200,000
1.38 * 10^7 is 13,800,000
you just have to divide 13,800,000 by the numbers until you get to 1,200,000. So, 13,800,000 / 11.5 is 1,200,000
Hope this helps! Have an amazing day :)
Answer:
11.5
Step-by-step explanation:
we will need to divide both of them
1.38 × 10^7 ÷ 1.2 × 10^6
1.38÷1.2 × 10^7-6
= 1.15 × 10¹
= 11.5
The concept of best-, worst-, and average-case analyses extends beyond algorithms to other counting problems in mathematics. Recall that the height of a binary tree is the number of edges in the longest path from the root to a leaf. Find the best-case height of a binary tree with seven nodes.
the height of a binary tree is the number of edges in the longest path from the root to a leaf.The best-case height of a binary tree with seven nodes is 3.
A binary tree is a type of tree structure consisting of nodes that are connected by edges. The number of edges in the longest path from a binary tree's root to a leaf determines the tree's height.In the best-case scenario, the binary tree is perfectly balanced and each node has exactly two children. With seven nodes, the best-case height is three because each node has two children and three edges connect the root node to the leaves. This means that the longest path from the root to a leaf is three edges, resulting in a height of three.
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F(x)=x+1 complete the table
URGENT!! ILL GIVE BRAINLIEST!!!! AND 100 POINTS!!!
Using ratio and scale factor, the value of x is 31 mm
RatioThe ratio is defined as the comparison of two quantities of the same units that indicates how much of one quantity is present in the other quantity.
This is a term that is used to compare two or more numbers. It is used to indicate how big or small a quantity is when compared to another. In a ratio, two quantities are compared using division.
The value of x that will make the figure similar can be calculated by multiplying the smaller figure by the scale factor.
To determine the scale factor, let's find the ratio between two similar sides
scale factor = 29 / 14.5
scale factor = 2
The value of x will be 2 * 15.5 = 31 mm
The value must be 31mm
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the symbol a || b represents that lines a and b are perpendicular lines.
True
False
False.It represents that a is parallel to b.
38. A furniture store buys a couch for $500 and sells it for $900. What it the percent of
markup?
The mark-up, as a percentage =80%
What is Markup?
The term "markup" describes the discrepancy between a product's selling price and its actual cost. It is specified as a percentage over the price. In other words, the seller makes a profit when the price of the commodity.
A unit's gross profit, which is the sales price less the cost to create or buy it for resale, is divided by its cost to determine the markup %. The markup percentage is computed as (12 - 8) / 8 and is equal to 50% if an item costs the business $8 to produce but is sold for $12.
Markup percentage = [(selling price - unit cost)/unit cost]*100
= [(900-500)/500]*100
= [ 400/500] *100
= 80%
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3 divided by 7.14 (PLEASEE HURRRRYYY)
Whqt is y +4=-6(x+6) written in standard form
standard form: 6x+y=-40
Answer:
y= -6x-40
Step-by-step explanation:
standard form is y=mx+b
y+4= -6(x+6)
y+4= -6(x) -6(6)
y+4= -6x-36
-4. -4
y= -6x-40
hopes this helps have a great day
Find a power series representation for the function; find the interval of convergence. (Give your power series representation centered at x = 0.)
f(x)= 1/(1-9x)
sum from n=0 to infinity [?] provided |x| < [?]
The power series representation for the given function is 1+ 9x + (9x) ^ 2 + (9x) ^ 3 + .... (9x) ^ n (where 0 ≤ n ≤ ∞).
Let u = 9x.
Return to the series above and replace each u with a 9x directly:
Where 0 n , 1 + 9x + (9x) 2 + (9x) 3 +.... (9x) n
Here, the interval of convergence is easily found. It follows that
|9x| 1 -1/9 x 1/9 because we know that geometric series must have | u | = 1
Finally, we may leverage the fact that geometric series have a sum to get the sum: S = a / (1 - u).
Here, u = 9x and a = 1
Therefore, the total is simply S = 1 /(1 - 9x).
Any sum can be calculated provided x is between -1/9 and x and less than 1/9.
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Chocolate sprinkles cost as much per pound of sugar find one and 1/10 the bakers total cost for 100 lb of chocolate sprinkles explain the numbers of zeros and the placement of the decimal in your answer using a place value chart.
(The sprinkles is $0.80 per pound)
The total cost of chocolate sprinkles is $800
Place value charts
This is an implementation of the numeral system that shows the value of each digit in a number using their positions
WHAT IS IMPLENTATION?
What do you mean implementation?
Implementation is the execution or practice of a plan, a method or any design, idea, model, specification, standard or policy for doing something. As such, implementation is the action that must follow any preliminary thinking for something to actually happen.
From the complete question, we have the following parameters:
Unit rate = $8.00
Total pounds = 100
Total cost of chocolate sprinkles
So, the total cost of chocolate sprinkles is calculated using the following formula
Multiply both sides of the equations by 100
Hence, the total cost of chocolate sprinkles is $800
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The length of a rectangle is 5 cm more than twice the width. The perimeter of the rectangle is five times the width. What are the dimensions of the rectangle?
Answer:
Wyzant
ALGEBRA WORD PROBLEM
Kieryn T. asked • 01/10/18
The length of a rectangle is 5 cm more than twice the width. The perimeter of the rectangle is 34 cm. Find the dimensions of the rectangle.
I am having trouble with this problem. I asked my parents and they didnt know what to do. I am stuck and i have looked through my notes and nothing has helped.
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Mikaila D. answered • 01/10/18
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The dimensions of the rectangle are two unknowns: The length "l" and the width "w"
The perimeter of a rectangle is found as P = 2*l + 2*w
We also know that the length is 5cm more than twice the width. l = 2*w + 5
These two equations gives us a system of linear equations.
P = 2*l + 2*w
l = 2*w + 5
We can use substitution to replace the "l" in the first equation with 2*w + 5
P = 2*(2*w + 5) + 2*w
P = 4*w + 10 + 2*w
P = 6*w + 10
We know that P = 34cm
34 = 6*w + 10
Subtract 10 from both sides
24 = 6 * w
Divide both sides by 6
4 = w
Now that we know the width, we can find the length by substituting 4 for "w" in the second equation.
l = 2*4 + 5
l = 8 + 5
l = 13
A metallic split ring has a target internal diameter of 50 mm, but records show that the diameters are normally distributed
with mean 50 mm and standard deviation 0.07 mm.
An acceptable diameter is one within the range 49.93 mm to 50.07 mm. What proportion of the output is unacceptable?
Round your answer to four decimal places.
The proportion of the output that is unacceptable is; 0.32
How to use empirical rule of statistics?The empirical rule of statistics is also called the 68 - 95 - 99.7 rule, and it states that states that for normal distributions, 68% of observed data points will lie inside one standard deviation of the mean, 95% will fall within two standard deviations of the mean, and 99.7% will occur within three standard deviations of the mean.
We are told that the target diameter is 50 mm.
Mean; μ = 50 mm
Standard deviation; σ = 0.07 mm
An acceptable diameter is one within the range 49.93 mm to 50.07 mm. Thus;
50 ± x(0.07) = (49.93, 50.07)
Thus;
50 - 0.07x = 49.93
0.07x = 50 - 49.93
x = 0.07/0.07
x = 1
Thus, the proportion that is acceptable is 68% or 0.68.
Proportion unacceptable = 1 - 0.68 = 0.32
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Evaluate the surface integral. S (x + y + z) dS, S is the parallelogram with parametric equations x = u + v, y = u − v, z = 1 + 2u + v, 0 ≤ u ≤ 8, 0 ≤ v ≤ 6.
The parallelogram with the parametric equations 1 + 2u + v is the surface integral.
What is the explanation?The surface element is
dS is equal to || r/u x r/dv || du dv.
where
r (u, v) is equal to x (u, v) I plus y (u, v) j plus z (u, v) k
r (u, v) = (u + v) I plus (u -v) j plus (1 + 2u + v) k
is the surface S's vector parameterization.
The surface's normal vector is
R / u x R / d
= I + j + k + 2) x I - j + k)
= 3 I + j - 2 k
as well as norm
|| r/dv x u r/u || = √(3² + 1² + (-2)²) = √(14) (14)
Calculate the integral now:
∫∫ (x + y + z) dS = √(14) ∫₀¹ ∫₀² (1 + 2u + v) = ((u + v) + (u - v)) du dv
= (14)... 01... 02 (3u + v + 1) du dv
= (14), 01 (3/2 u2, uv, and u), |02 dv
= √(14) ∫₀¹ (8 + 2v) dv
= √(14) (8v + 2v²) |₀¹
= 10 √(14) (14).
The parallelogram with the parametric equations x = u + v, y = u â' v, and z = 1 + 2u + v is the surface integral.
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assume that the heights of of adult males in a certain region are normally distributed. the heights (in inches) of 20 randomly selected adult males from this region are listed below: 70 72 71 70 69 73 69 68 70 71 67 71 70 74 69 68 71 71 71 72 use this sample data and a .05 significance level to test the claim that the variance of all heights in this region is less than 6.25.
Using the null hypothesis test we calculate that variance is less than 6.25 .
Data sample is 0.05.
20 people make up the sample.
And ,
The theories are:
H₀ : μ² = 6.25
H₁ : μ² < 6.25
The critical value = 10.117.
If the test statistic is less than this number, the null hypothesis will be rejected. When the p-value is less than or equal to your significance level, we reject the null hypothesis. The alternative theory, which contends that the effect is widespread, is supported by your sample data. The null must be removed when the p-value is low, as a mnemonic device.
This is the test statistic:
2.976 × 19 / 6.25 = 9.047.
Therefore, we disregard the null hypothesis. The difference is less than 6.25 since it is not 6.25.
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Solve this question
(7w^7)k³
The value of the variable 'w' for the given equation 7 ( w + 7 )³ = 7(6³) is equal to w = -1.
As given in the question,
Given equation is equal to :
7 ( w + 7 )³ = 7(6³)
Divide both the side of the equation by 7 we get,
⇒ 7 ( w + 7 )³ / 7 = 7(6³) /7
⇒( w + 7 )³ = (6³)
Take cube root both the side of the equation we get,
⇒∛( w + 7 )³ = ∛(6³)
⇒ w + 7 = 6
Now subtract 7 from both the side of the equation we get,
⇒w + 7 - 7 = 6 - 7
⇒ w = -1
Therefore, the value of the variable 'w' for the given equation is equal to w = -1.
The complete question is:
Solve this equation:
7 ( w + 7 )³ = 7(6³)
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Which statement regarding the equation below is true?
x²+y²-3 x+6 y=7 x+2
A. It has a diameter of 18 units.
B. It has an area of 36 π square units.
C. It has a center at (-5,3).
D. It has a center at (-2,-3).
A
B
C
D
The true statement regarding the equation x² + y² - 3x + 6y = 7x + 2 is that it has a area of 36π sq. unit , correct option is (b) .
In the question ,
it is given that ,
the equation is x² + y² - 3x + 6y = 7x + 2 ,
On simplifying and rewriting the equation ,
we get ,
x² - 10x + 25 + y² + 6y + 9 = 36
further it can be written as ;
(x - 5)² [tex]+[/tex] (y [tex]+[/tex] 3)² [tex]=[/tex] 36
(x - 5)² + (y + 3)² = 6²
the equation represents a circle .
So , the from the above equation we can conclude that :
the center of the circle will be = (5,-3) .
the radius is = 6 units .
the diameter will be = 12 units , and
the area of the circle will be = πr² = 36π square units .
So , the statement that matches with the information is that the area is 36π square units .
Therefore , the True statement is (b) it has a area of 36π sq. units .
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the function below satisfies the mean value theorem on the specified interval.find the value of c in the interval (1,2) where 1.2/x 1.6 (1,21)
By solving the mean value theorem, the value of c in the interval (1,2) is 0.75.
Explanation:
The mean value theorem states that if a function f(x) is continuous on a closed interval [a,b] and differentiable on the open interval (a,b), then there exists at least one point c in (a,b) where the equation f'(c) = (f(b) - f(a))/(b - a) is satisfied.
For the specified interval (1,2) and given equation 1.2/x - 1.6, we can rearrange the equation to solve for c:
1.2/c - 1.6 = 0
1.2/c = 1.6
c = 1.2/1.6
c = 0.75
Therefore, the value of c in the interval (1,2) is 0.75.
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Find the sum of 9x² + 6 and 2x² - x - 10.
Answer:
Submit Answer
By using addition, it can be calculated that, Sum of [tex]9x^2 + 6[/tex] and [tex]2x^2 - x - 10[/tex] is [tex]11x^2 - x -4[/tex]
What is addition?
Addition is a basic math operation that combines two or more numbers to create a new total. It is the process of combining two or more values to get a single sum. Addition is one of the four basic operations in math, alongside subtraction, multiplication, and division. It is a fundamental part of arithmetic and is widely used in everyday life for tasks such as counting, budgeting, and measuring. Addition can be performed with any type of number, including whole numbers, fractions, decimals, and even negative numbers. Addition is an incredibly useful tool for solving a variety of math problems.
Sum of [tex]9x^2 + 6[/tex] and [tex]2x^2 - x - 10[/tex]
[tex]9x^2 + 6 + 2x^2 - x - 10\\= 11x^2 -x - 4[/tex]
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suppose that the mean outstanding credit card balance for all young couples in the us is $650 with a standard deviation of $420. the distribution is highly skewed to the right. suppose now that one random sample of size 200 is selected from the population of young couples. the mean of this sample is $623. based on this information, which of the following is true?
The probability is 0.2005.
What is a probability distribution?
A probability distribution is a function that describes the probabilities of different outcomes in a random event or experiment. It is used to represent the likelihood of different outcomes occurring in a given situation.
Mean = 650 * 200 = 130000
[tex]\sigma \bar x = \sqrt{n}\times\sigma\\\\=\sqrt{200}*420\\=5939.6970\\\\\\P(X < 125000)=P[Z < \frac{125000-130000}{5939.6970}]\\\\P(X < 125000)=P[Z < \frac{-5000}{5939.6970}]\\\\P(X < 125000)=P[Z < -0.84]\\\\P(X < 125000)=0.2005[/tex]
Hence, the probability is 0.2005.
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Brian is buying salad and pizza for company lunch: Suppose that bowl of salad costs $5.00_ and slice of pizza costs 52.00 Let E be the amount in dollars that Brian spends on salad and pizza If Brian buvs money he spends ( E ) can be represented by the equation bowls of salad and slices of pizza_ then the total amount of Now rearrange the equation yoyu wrote above so that equation written terms of E and The quantity of pizza he buys can be represented by the equationSuppose Brian has 540.00 to spend on salad and pizza; that i5, E = 540.00 _ Complete the following table with the values of $ or P that make the equation true: Hint: To complete the first row, determine the number of pizza slices Brian can purchase with $40.00, when the number of salad bowls he purchases Budget (Dollars) Salad Pizza (Bowls) (Slices) 40.00 40.00 40.00
The equation to represent money spend and the quantity of salad and pizza is E = $5.00*x + $2.00*y
where x represent the quantity of bowl of salad and y represent the quantity of slice of pizza.
What is equation in mathematics?
The definition of an equation in algebra is a mathematical statement that demonstrates the equality of two mathematical expressions.
Equations come in two varieties: identities and conditional equations. All possible values of the variables result in an identity. Only certain combinations of the variables' values make a conditional equation true.
According to the given question:
The equation to represent money spend and the quantity of salad and pizza is E = $5.00*x + $2.00*y
where x represent the quantity of bowl of salad and y represent the quantity of slice of pizza.
The table to represent the result of above equation is
Budget (in $) Salad (bowl) Pizza (slices)
40.00 0 20
40.00 2 15
40.00 4 10
40.00 6 5
40.00 8 0
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The next day Tamika records the temperature of 0°F at 8:00 a.m. and 1°F
at 10:00 a.m. Assume the temperature has been rising linearly since sunrise
at 6:00 a.m.
Use point-slope form to write a linear function to model the
situation. (Hint: Solve for y, then replace y with f(x)).
The equation of line in the point slope form is y = 2x + 8
What is an Equation of a line?
The equation of a line is expressed as y = mx + b where m is the slope and b is the y-intercept
And y - y₁ = m ( x - x₁ )
y = y-coordinate of second point
y₁ = y-coordinate of point one
m = slope
x = x-coordinate of second point
x₁ = x-coordinate of point one
The slope m = ( y₂ - y₁ ) / ( x₂ - x₁ )
Given data ,
Let the equation be represented as A
Let temperature be denoted as x
Let the time be denoted as y
Let the initial temperature be = 0°F
Let the final temperature be = 1°F
Let the initial time be = 8 : 00 AM
Let the final time be = 10 :00 AM
And , the first point be P = P ( 0 , 8 )
The second point be Q = Q ( 1 , 10 )
Now , the slope of the equation is given as
Slope m = ( y₂ - y₁ ) / ( x₂ - x₁ )
Substituting the values in the equation , we get
Slope m = ( 10 - 8 ) / ( 1 - 0 )
Slope m = 2
Now , the equation of line is given as y - y₁ = m ( x - x₁ )
Substituting the values in the equation , we get
y - 8 = 2 ( x - 0 )
y - 8 = 2x
Adding 8 on both sides of the equation , we get
y = 2x + 8
Therefore , the value of A is y = 2x + 8
Hence , the equation is y = 2x + 8
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Select the correct answer.
What is the value of x in the triangle?
45°
Ο Α. 4
OB. 2
45°
C. 4√2
2√2
O D.
The value of the variable 'x' in the given isosceles right angle triangle is 2√2. By applying the Pythagoras theorem, we get the required value.
What is an isosceles right angle triangle?An isosceles right angle triangle has a right angle and equal lengths of two sides. (the other two angles are also the same in measure for an isosceles triangle).
Calculation:Given triangle has two angles of 45° and one angle of 90°, then the triangle is "an isosceles right angle triangle.
It is also given that, hypotenuse h = 4 and the opposite side is given by x.
Since it is an isosceles right triangle, the two sides are also equal in measure.
I.e., opposite side length = adjacent side length = x
Then, applying the Pythagoras theorem, we get
h² = (opp)² + (adj)²
⇒ (4)² = x² + x²
⇒ 16 = 2x²
⇒ x² = 8
∴ x = 2√2
Thus, the value of the length x = 2√2.
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pls help due 5 minutes ago!!!!!
Answer:
[tex]-1 < x < 0\\0 < x < 1[/tex]
Step-by-step explanation:
At those range, the slope is negative. As the line is going right, it is going down.
A bicyclist travels 120 miles in 5 hours. A motorcyclist travels 3 times as fast as the motorcyclist. Find the speed of the motorcyclist. HELP ASAP
Answer: first you have to find the speec of the bicycle by using the formula speed = distance/time
120/5=24miles per h
speed of the motorcycle is 3 times as fast as the bicycle so 24x3 = 72miles per hour is the speed for the motorcycle.
Step-by-step explanation: