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3 years ago

I BET NO ONE KNOWS THIS QUESTION. Lower income tends to predict less parental involvement. IN this example, lower income is:

Mathematics

2 answers:

jenyasd209 [6]3 years ago

7 0

I think it is D too.

Delicious77 [7]3 years ago

6 0

Answer:

Don't get wrong i think its d

Step-by-step explanation:

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Plzz help me out look at the pic

Nookie1986 [14]

Answer:

(B) 10

Step-by-step explanation:

Rate of change is basically slope

So the slope here is 10/1 so the rate of change is 10

6 0

2 years ago

Read 2 more answers

Suppose 40% of the students in a university are baseball players. If a sample of 781 students is selected, what is the probabili

3241004551 [841]

Answer:

$P(p>0.43) = 0.0436$

Step-by-step explanation:

Given

$p = 40\%$ -- proportion of baseball players

$n = 781$ --- selected sample

Required

Determine P(p>43%)

First, calculate the z score using:

$Z = \frac{\^{p}-p}{\sqrt{\frac{p(1-p)}{n}}}$

This gives:

$Z = \frac{48\%-40\%}{\sqrt{\frac{40\% *(1 - 40\%)}{781}}}$

Convert % to decimal

$Z = \frac{0.43-0.40}{\sqrt{\frac{0.40 *(1 - 0.40)}{781}}}$

$Z = \frac{0.43-0.40}{\sqrt{\frac{0.40 *0.60}{781}}}$

$Z = \frac{0.43-0.40}{\sqrt{\frac{0.24}{781}}}$

$Z = \frac{0.03}{\sqrt{0.00030729833}}$

$Z = \frac{0.03}{0.01752992669}$

$Z = 1.71$

So:

$P(p>0.43) = P(Z>1.71)$

$P(p>0.43) = 1 - P(Z$

$P(p>0.43) = 1 - 0.9564$

$P(p>0.43) = 0.0436$

5 0

3 years ago

Delila earns $108.75 for working 15 hours as a holiday helper wrapping gifts. at this rate ,how much money will she earn if she

blsea [12.9K]

In 1 hour she earns $7.25
18 hours she earns $130.5
18 times 17.25 it’s $130.5

4 0

3 years ago

Read 2 more answers

Solve this system of equations using substitution. a+b+c=180 b=3a c=5a ...?

vichka [17]

The first thing to do is to substitute the b and c. The equation will look like this, a+3a+5a=180. Then you must add the a's all together because they are all the same, remember that "a" represents 1. It will look like this in plain 1 + 3 + 5. Then the equation is 9a = 180. to get the "a" you must eliminate or divide the equation into 9 and it will look like this, 9a = 180 Then the answer will be a = 20
9 9

4 0

3 years ago

What is a factoring Line?

earnstyle [38]

Answer:

A factoring line is a "funding loan"

5 0

3 years ago