The alpha level is the set of analysis of the data. Identify the boundaries that separate the extreme samples from the samples that are more obviously consistent with the null hypothesis. Assume the null hypothesis is nondirectional, meaning that the critical region is split across both tails of the distribution.

The z-score boundaries at an alpha level α = .05 are:_________

Answer:

25%

Step-by-step explanation:

[tex]error=|\frac{15-12}{12} |*100%[/tex]

and that is 3/12

0.25(25%)

(it is 100% not 100 in the formla, idk why its wrong)

Hoped this helped you

<3

Red

Answer:

its 14 friends 12 something i can't remember

Step-by-step explanation:

Answer:

I think the answer is B

can you also please mark me as brainliest

Answer:

The slope-intercept form is y=mx+b y = m x + b , where m is the slope and b is the y-intercept. Using the slope-intercept form, the slope is 3 .

Answer:

4.5X10^-3

Step-by-step explanation:

Scientific notation formula= x.x times 10^x

d) a = 5 ; b = 5√3

Hi there !

30°-60°-90°  Theorem

1)

side opposite the 90° angle = 2a

10 = 2a => a = 10/2 => a = 5  

2)

side opposite the 60° angle => b = 5√3

Good luck !

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#SPJ2

Answer:

cm scale

Step-by-step explanation:

it may help you to understand

Answer:

Step-by-step explanation:

Dryer = x

Washer: x+95

Now to find x, we must create an equation.

x+(x+95)=995

Now, we can add the variables.

x+x=2x

So now it would be:

2x+95=995

Now we must solve, since there is only one variable, we need to solve the constants.

Since 95 is positive, we need to cancel it out. And since you did it to one constant, you need to do it to the other.

2x=900

(since you subtract 95 from the other constant, too.)

Now, you must divide both sides by 2.

x = 450.

Now the washer isn't what we're supposed to find, but technically, you would still need it in the problem to find the answer for the dryer.

Hope this helps!

Answer:

72

Step-by-step explanation:

-4 times 2 is -8.  -8 times -9 is 72 because the two negatives cancel each other out.

Answer:

2

Step-by-step explanation:

if you measure the rate change on the graph, you will see it is 2

Answer:

(-4,4)

Step-by-step explanation:

Answer:

4:1 is a ratio

Step-by-step explanation:

It is also equal to 8:2, 12:3, etc.

Answer:

Ratio

Step-by-step explanation:

took test

Answer she would need to paint 16 faces to get 80$ I'm not sure what that last part is

Step-by-step explanation:

do you have a picture or anything? Step-by-step explanation:

Answer:

This is a linear function.

Step-by-step explanation:

A linear function is a straight line. Once you graph the equation, you get a staright line, therefore, it's linear.

Answer:

y=9x+2

Step-by-step explanation:

The standard form for a linear equation is y=mx+b. m=9 since it is slope and b=2 which is the y intercept. So the equation would be y=9x+2.

Answer:

d

Step-by-step explanation:

Answer:

QPT is obtuse

SPQ is acute

TPR is right

Step-by-step explanation:

Took geometry two years ago

Answer:

TPR is a right angle all the other are wrong tho

Step-by-step explanation:

Answer:

5 x^2 + 7 x − 2

Step-by-step explanation:

Answer:

let's see what to do buddy....

Step-by-step explanation:

[tex]3( \frac{7}{5}x + 4) - 2( \frac{3}{2} - \frac{5}{4}x) \\ \\ = \frac{21}{5}x + 12 - 3 + \frac{5}{2}x \\ \\ = \frac{(21 \times 2) + (5 \times 5)}{10} x + 9 = \\ \\ \frac{42 + 25}{10} x + 9 = \frac{67}{10}x + 9 = 6.7x + 9 [/tex]

Answer:

Dana can skate and I can not

Step-by-step explanation:

Answer:

8√2

2√2

Step-by-step explanation:

Using arc length for parametric equations:

s = ∫ₐᵇ √((dx/dt)² + (dy/dt)²) dt

x = 2 sin²t

dx/dt = 4 sin t cos t

y = 2 cos²t

dy/dt = -4 sin t cos t

s = ∫ √((4 sin t cos t)² + (-4 sin t cos t)²) dt

s = ∫ √(32 sin²t cos²t) dt

s = ∫ 4√2 sin t cos t dt

s = ∫ 2√2 sin(2t) dt

s = -√2 cos(2t)

If we evaluate this between t=0 and t=2π, we get s = 0.  This means the particle travels forward and backward on the same curve.

sin²t and cos²t have periods of π, so if we evaluate from t=0 to t=π/2:

s = -√2 cos(2 (π/2)) − -√2 cos(0)

s = √2 + √2

s = 2√2

So the particle travels 2√2 four times from t=0 to t=2π.

The distance traveled is 8√2.  The length of the curve is 2√2.

We can check our answer by eliminating the parameter.

x + y = 2 sin²t + 2 cos²t

x + y = 2

y = 2 − x

The curve is the line y = 2 − x from (0, 2) to (2, 0).  Using distance formula to find the length of the line:

d = √((x₂ − x₁)² + (y₂ − y₁)²)

d = √((2 − 0)² + (0 − 2)²)

d = 2√2

Answer:

y = x ^2 − 99 x + 81

Step-by-step explanation:

Work backwards to find the factors from the roots, then multiply the factors together.

Answer:

36

Step-by-step explanation:

Step 1:

3 : 6      Ratio

Step 2:

3 : 6 = 18 : x       Equation

Step 3:

108 = 3x      Multiply

Step 4:

x = 108 ÷ 3     Divide

Answer:

x = 36

Hope This Helps :)

Answer:

36

Step-by-step explanation:

We have the ratio 3:6(girls to boys)

Now lets simply put 18 below the 3. We know 18 to something has to equal 3:6.

Simply divided 18/3=6

Now we have 6. Simply multiply it by the number of boys.

6*6, which equals 36 boys,

Your answer would be 36 boys

Now if we put 18:36, we get the ratio 3:6, which further reduces down to 1:2.

Hope this helps!

Answer:

The answer is 20

Step-by-step explanation:

When you take the height of the triangle (which is 4) you take that and divide it by 2 or multiply by 1/2 which gets you 2. Then you take the two bases of the trapizoid and add them up to get 10 and then you multiply the two from earlier by 10 to get 20.    

Answer:

7.50

Step-by-step explanation:

i'm dumb

Answer:

He can buy 5 cartons of eggs

Step-by-step explanation:

Take $9.50 and subtract $2

Then divide that answer by $1.50

[tex]x \geqslant 0.5[/tex]

is the inequality shown in the graph