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3 years ago

13

When Jaylen started high school, 1,430 students attended his school. On the day of his graduation, only 1,001 students attended

his school.

1 answer:

Feliz [49]3 years ago

6 0

It looks like 429 students dropped out, stopped attending school, or did not complete the requirements to graduate.

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Cube root of 0.000064

const2013 [10]

<span>Cube root of 0.000064 = 0.04

hope it helps
------------------</span>

6 0

3 years ago

A group of friends went to lunch, and their bill was $132.50. An 18% gratuity was added to the bill. What was the total amount o

Serggg [28]

Answer:

$156.35

Step-by-step explanation:

we know that

A group of friends went to lunch, and their bill was $132.50

In this problem

$132.50 represent the 100%

100%+18%=118%

so

using proportion

Find out the total amount that represent 118%

Let

x ----> the total amount of the bill

$\frac{\$132.50}{100\%}=\frac{x}{118\%}\\\\x=132.50(118)/100\\\\x=\$156.35$

7 0

3 years ago

Prove that<br><img src="https://tex.z-dn.net/?f=%20%7B2%7D%5E%7B3%7D%20%20%5Ctimes%20%20%7B3%7D%5E%7B0%7D%20%20%2B%20%20%7B3%7D%

KonstantinChe [14]

Answer:

Step-by-step explanation:

Anything raise to the power zero is 1

Therefore,

$LHS\\\\ =2^3 \times 3^0 + 3^2 \times 2^0\\\\8 \times 1 + 9 \times 1 \\\\17$

LHS = RHS

Hence Proved

5 0

3 years ago

Draw the straight line y = 2x - 3

wel

Answer:

See the picture down below

Step-by-step explanation:

When you are drawing a line you should first mark the y-intercept, which in this case it's (0,-3) because the the b in the equation is -3. Then we will go 2 units up then 1 unit right. Keep going until you've run out of room. Then draw the line going through all the points.

8 0

3 years ago

A test of sobriety involves measuring the subject's motor skills. Twenty randomly selected sober subjects take the test and prod

elena55 [62]

Answer:

Step-by-step explanation:

Hello!

The variable of interest is:

X: motor skills of a sober subject.

n= 20

X[bar]= 37.1

S= 3.7

The claim is that the average score for all sober subjects is equal to 35.0, symbolically: μ= 35.0

The hypotheses are:

H₀: μ = 35.0

H₁: μ ≠ 35.0

α: 0.01

The statistic to use, assuming all conditions are met, is a one sample t- test

$t= \frac{X[bar]-Mu}{\frac{S}{\sqrt{n} } } ~t_{n-1}$

$t_{H_0}= \frac{37.1-35.0}{\frac{3.7}{\sqrt{20} } } = 2.34$

This test is two-tailed, meaning, the rejection region is divided in two and you'll reject the null hypothesis to low values of t or to high values of t:

$t_{n-1;\alpha /2}= t_{19; 0.005}=-2.861$

$t_{n-1;1-\alpha /2}= t_{19; 0.995}= 2.861$

The decision rule using this approach is:

If $t_{H_0}$ ≤ -2.861 or if $t_{H_0}$ ≥ 2.861, you reject the null hypothesis.

If -2.861 < $t_{H_0}$ < 2.861, you do not reject the null hypothesis.

The value is within the non rejection region, the decision is to not reject the null hypothesis.

I hope this helps!

3 0

3 years ago