Find the value of x.

A
B
8
X
4
3
D
x = [?]
C

The basic assumption for a chi-square hypothesis test is that all scores come from an interval or ratio scale. This means that the data being analyzed should have a quantitative scale with consistent units of measurement.

All other assumptions for chi-square, including normal population distribution and independent observations, apply to different types of statistical tests.

Normal population distribution assumes that the data follows a normal distribution curve, which is not applicable to a chi-square test as it is a non-parametric test that does not make any assumptions about the underlying population distribution.

Independent observations assumption implies that the values of one observation do not affect or influence the values of other observations. This assumption is relevant for both parametric and non-parametric tests, including chi-square.

Therefore, it is important to ensure that the data being analyzed meets the assumption of interval or ratio scale to conduct a chi-square test accurately.

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Answer:

25

Step-by-step explanation:

length for square is square root it's area

\( = \sqrt{625} \\ = 25\)

Answer:

x= -2

y= 0

Step-by-step explanation:

isolate y in second equation

-3x=6-y

 +y.   +y

-3x+y=6

+3x.    +3x

y=3x+6

now we know y is the same as 3x+6 we can put it into the first equation where y is

-4x+2(3x+6)=8

-4x+6x+12=8

2x+12=8

   -12.  -12

2x= -4

/2.  /2

x= -2

now fill in x to find y

-3(-2)=6-y

6=6-y

-6. -6

0= -y

/-1. /-1

0 =y

hopes this helps please mark brainliest

Answer:

m<x=100

Step-by-step explanation:

the left side <100 what's near to here is 80 100+80=180

so x and what's near to hear "up" needs to be 180 what's near to hear was 80 so x+80=180 180-80=x x=100

Answer:

Do you need help still? I know how to do it????

Answer:

-5/6+1/2=-2/6 = -1/3

hope it helps

Answer:

-0.33333333333

fraction= -1/3

any more help just ask :)

Answer:

if she fill 5.7 gallons of gas then she spent ( 19.95 )

if she fill 14 gallons of gas then she spent ( 49 )

Answer:

I think 19.95

Step-by-step explanation:

3.50 x 5.7 = 19.95

Also if you are you Savvas Realize, just enter 000. You get it wrong and click try again or samilirar question. ( Just a suggesion)

The Excel function used when deciding to reject or fail to reject the null hypothesis is the T.TEST function.

This function is used to calculate the probability of obtaining the observed results or more extreme results, assuming that the null hypothesis is true. If the probability, also known as the p-value, is less than the significance level, typically 0.05, the null hypothesis is rejected, and it is concluded that there is sufficient evidence to support the alternative hypothesis.

Otherwise, if the p-value is greater than the significance level, the null hypothesis is not rejected, and it is concluded that there is not enough evidence to support the alternative hypothesis.

The p-value is the probability of obtaining a test statistic as extreme or more extreme than the observed value, assuming that the null hypothesis is true. If the p-value is less than or equal to the level of significance (alpha) chosen for the test, typically 0.05 or 0.01, then the null hypothesis is rejected in favor of the alternative hypothesis. If the p-value is greater than the chosen alpha level, then the null hypothesis is not rejected.

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The solution of the pairs of lines are as follows,
(1) Line 1 and line 2 are perpendicular to each other.
(2) Line 1 and line 3 are parallel to each other.
(3) Line 2 and line 3 are perpendicular to each other.

The slope of the line is a tangent angle made by line with horizontal. i.e. m =tanx where x in degrees.

Here,
Calculate the slope of each line,

LIne 1
3y = 2x + 5
y = 2/3x + 5/3
Compared with the standard equation of line y = mx + c,

Slope m = 2/3
Similarly.
The slope of line 2 = -3/2
The slope of line 3 = 2/3

Now. properties of pair of lines state that the slope of parallel lines is equal and the slope of perpendicular lines are negative reciprocal of each other,
So
Slope of line 1 = slope of line 3
But,
The slope of line 2 is the negative reciprocal of the slope of lines 1 and 3.

Thus, the solution of the pair of lines has been shown above.

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Using the concept of fraction and percentage, the percentage increase of the baby at 12 months is 177.7 percent

Percentage increase is a mathematical concept that refers to the increase in a particular value over its initial amount. It is usually expressed as a percentage and is calculated by dividing the increase in the value by the original amount, then multiplying by 100.

In this problem, the data given are;

The percentage increase at 12 months old can be calculated as

percentage increase = [(mass at 12 months - Initial mass) / Initial mass] * 100

percentage increase = [(10 - 3.6) / 3.6] * 100

percentage increase = 1.7 * 100

Percentage increase = 177.7%

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Answer:

ok thx

Step-by-step explanation:

Answer:

The probability is \(\frac{3}{4^7}\).

Step-by-step explanation:

Total questions = 7

Number of choices of each question = 4

Probability to give the correct answer = 1/4

Probability to give the wrong answer = 3/4

Probability to give 1 answer wrong

\(\frac{1}{4}\times \frac{1}{4}\times \frac{1}{4}\times \frac{1}{4}\times \frac{1}{4}\times \frac{1}{4}\times \frac{3}{4}\\\\= \frac{3}{4^7}\)

Answer:

68 1/4

Step-by-step explanation:

Answer:   YOU ARE SO CORRECT UP THERE

Step-by-step explanation:    I TOOK THE QUIZ AND GOT 100%

Answer: Pythagorean triples are given by the formula:- AC² = AB² + BC²

The third side in the right triangle measures 23 units

Step-by-step explanation: The Pythagoras theorem as stated in the answer above is used in mathematics to solve for an unknown side(s) in any right angled triangle.

Pythagorean triples are so named because it refers to a right angled triangle in which the values of all three sides are always the same set of three numbers, and changing one of them changes everything completely. A very common Pythagorean triple is given as 3, 4 and 5. This means, the right angled triangle has sides measuring 3, 4 and 5. Hence to solve a right angled triangle with two sides given as 3 and 4 with the Pythagoras theorem is already half solved as the answer would always be 5.

Therefore, in a right triangle with leg lengths of 16, the first thing to note is that this a right isosceles triangle. We know this because a triangle with two legs having the same length is an isosceles triangle. That leaves us with the third side which is the hypotenuse. The Pythagoras formula just as stated above is given as follows;

AC² = AB² + BC²

Where AC is the hypotenuse (longest side), and AB and BC are the other two sides.

AC² = 16² + 16²

AC² = 256 + 256

AC² = 512

Add the square root sign to both sides of the equation

√AC² = √512

AC = 22.62741699...

AC ≈ 23

Therefore the Pythagorean triple as required by the question is given as

16, 16 and 23

Answer:

90 meters

Step-by-step explanation:

h = -5t^2 + 135

Let t =3

  = -5*3^2 + 135

   = -5 *9 +135

   =-45 +135

   =90

The limit of the ratio test for the series ∑[infinity] to n=1 10^n÷n! is infinity (∞).

The ratio test is used to determine the convergence or divergence of a series. It involves taking the limit of the absolute value of ratio of consecutive terms. If the limit is less than 1, the series converges. If the limit is greater than 1 or infinity (∞), the series diverges. If the limit is exactly 1, the test will be inconclusive.

In this case, we have f(n) = ∣(10^n+1)÷(10^n)∣ = ∣10∣ = 10. The limit of f(n) as n approaches infinity is 10.

Since the limit of f(n) is greater than 1, the series fails the ratio test. This means that the series ∑[infinity] to n=1 10^n÷n! diverges. The ratio test suggests that the series does not have a finite sum and continues indefinitely.

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Answer:

x=10+(2/6)

Step-by-step explanation:

Hope this helped!

Answer:

10 + 2/6

Step-by-step explanation:

A quotient is the answer to a division problem.

A sum refers to addition.

Would appreciate Brainlitest!

Answer:

x<-8/5

Step-by-step explanation:

Answer: 0

Step-by-step explanation:

So the slope of a line is equal to rise over run, or the change in x over the change in y. We can solve for the change in x and the change in y by finding their differences. For the math, we use the formulas y2 - y1/x2 - x1. Filling in this formula we get, (5-5)/(3-13), which is equal to 0/10. Because 0 divided by anything is 0, the answer here is 0.

Answer:

C.

Step-by-step explanation:

the ratio is 1:2

so,

\(4*2=8\\7*2=14\\1*2=2\)

the only shape with those numbers is C

Hope this helps! Please let me know if you need more help, or if you think my answer is incorrect. Brainliest would be MUCH appreciated. Have a great day!

Stay Brainy!

Answer:

Step-by-step explanation:

For missing hypotenuse: \(\sqrt({a^{2} + b^{2})\)

Plug in the side lengths that are known to find the hypotenuse.

1. No, the angle is less than 18 degrees (closer to 15), so it is not safe

2. The length rounded to the nearest tenth is approximately 15.5 feet.

There are 60 different ways could you choose a car and this can be determined by using arithmetic operations.

What are arithmetic operations?

For all real numbers, the four fundamental arithmetic operations in mathematics are: Finding the sum in addition ('+') Subtraction (Difference-finding; "-") Multiplication ("×") Finding the quotient in division ("÷").

Given :

A car dealership has five exterior color choices.

A car dealership has six interior color choices.

A car dealership has two model choices.

The following steps can be used to determine the different ways could you choose a car:

Multiply 5 and 6 that is multiply five exterior color choices and six interior color choices.

= 5 * 6

Multiply the above expression by 2 which is with two model choices.

= 30 * 2

Further, simplify the above expression.

= 60

Hence, There are 60 different ways could you choose a car.

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The area of the region is 0.

To find the area of the region enclosed by the curves x = y^2 - 3y + 2 and x = y - 1, we need to determine the points of intersection of the two curves. The area can then be calculated by evaluating the definite integral of the difference between the two curves over the interval of intersection.

First, let's set the equations equal to each other to find the points of intersection:

y^2 - 3y + 2 = y - 1

Rearranging the equation, we get:

y^2 - 4y + 3 = 0

Factoring the quadratic equation, we have:

(y - 1)(y - 3) = 0

So, y = 1 or y = 3.

Now, we can calculate the area by evaluating the definite integral:

Area = ∫[a, b] (x2 - x1) dy

where a and b are the y-values of the points of intersection.

For y = 1, the x-values of the curves are:

x1 = y^2 - 3y + 2 = 1^2 - 3(1) + 2 = 0

x2 = y - 1 = 1 - 1 = 0

For y = 3, the x-values of the curves are:

x1 = y^2 - 3y + 2 = 3^2 - 3(3) + 2 = 2

x2 = y - 1 = 3 - 1 = 2

Therefore, the area of the region enclosed by the curves x = y^2 - 3y + 2 and x = y - 1 is:

Area = ∫[1, 3] (x2 - x1) dy

     = ∫[1, 3] (0 - 0) dy

     = ∫[1, 3] 0 dy

     = 0

Hence, the area of the region is 0.

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It can be represented in tabular form or graphically using a histogram or bar chart, which makes it easy to understand and analyze the distribution of possible outcomes.

A probability mass function (PMF) for a discrete random variable specifies the probability for each possible value of the random variable. The mas probability s function is used to define discrete random variables, which are random variables that can only take on a finite or countably infinite number of values that have a specified probability of occurring.The PMF function can be used to calculate probabilities associated with specific events occurring and is often used in statistical analysis and probability theory to model a wide range of phenomena, including games of chance, genetic inheritance, and more. It can be represented in tabular form or graphically using a histogram or bar chart, which makes it easy to understand and analyze the distribution of possible outcomes.

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Answer:

see below

Step-by-step explanation:

To find the x intercept set y =0 and solve for x

0= 10x - 32

32 = 10x

Divide by 10

3.2 = x

The x intercept

( 3.2,0)

To find the y intercept set x =0 and solve for y

y= 0 - 32

y = -32

( 0, -32)

Answer:

(0, -32)

(3.2, 0)

Step-by-step explanation:

The line is in slope intercept form. It is easy to identify the y-intercept.

\(y=mx+b\)

The y-intercept is (0,-32). '-32' replaces the 'b' in the equation.

To find the x-intercept, set the value of 'y' to zero and solve for 'x'.

\(0=10x-32\\\\0 + 32 = 10x-32+32\\\\32=10x\\\\\frac{32}{10}=\frac{10x}{10}\\\\\frac{32}{10}=x\\\\\rightarrow \frac{32/2}{10/2}=\frac{16}{5}\\\\ \boxed{x=\frac{16}{5}}\)

The x intercept is (16/5, 0).

This can also be expressed as (3.2, 0).

Hope this helps.

Answer:

a = alpha

(sin a)^2

Step-by-step explanation:

(tan a)^2=(sin a)^2/(cos a)^2

(sec a)^2 = 1/(cos a)^2

if we combine we get ((sin a)^2 * (cos a)^2)/(cos a)^2

simplafy

HOPE THIS HELPSSSS<3

The "hypothesis of no change," "status quo," and "conventional wisdom" are all alternative names for the null hypothesis. Unless there is overwhelming evidence to the contrary, the null hypothesis is assumed to be correct.

H0: u = 1: u ≠ 1,400

When testing hypotheses with the P value, the null hypothesis is rejected if?

The evidence against the null hypothesis is stronger when the p-value is smaller (closer to 0).If the p-esteem is not exactly or equivalent to the predetermined importance level α, the invalid speculation is dismissed;The null hypothesis is not rejected otherwise.

A statement of expectation or prediction that will be tested by research is called a research hypothesis. Read up on the subject that interests you before coming up with your research hypothesis.

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Answer:

-8/3

Step-by-step explanation:

2 - x = - 6 - 4x      <-- Add 4x to the left side

2 + 3x = - 6          <-- Subtract 2 from the left side

3x = -8             <-- Divide 3 on both sides

x = -8/3

Answer:

x = -8/3

Step-by-step explanation:

Consolidate x terms on the right side:

2-x= -6-4x becomes 2-x + x = -6-4x + x, which in turn becomes:

2 = -6 - 3x, or 3x = -8.  Then, dividing both sides by 3, we get x = -8/3