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3 years ago

Please help this is confusing

Mathematics

1 answer:

andrew11 [14]3 years ago

3 0

h(-8)=(-8)^2+3(8)/4()+27

Do the numerator first

-8*-8+3(-8)

64-24

Do the denominator

4(-8)+27

-32+27

Numerator / Denominator

40/-5=-8

Answer:-8

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2 years ago

1. What is the constant of proportionality, k, of Kevin's wage? Greg's? Savannah's?

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Answer:

Part a) The constant of proportionality of Kevin's wage is $k=\$8.25\ per\ hour$

Part b) The constant of proportionality of Greg's wage is $k=\$9.00\ per\ hour$

Part c) The constant of proportionality of Savannah's wage is $k=\$9.50\ per\ hour$

Step-by-step explanation:

See the attached figure to better understand the problem

we know that

A relationship between two variables, x, and y, represent a proportional variation if it can be expressed in the form $y/x=k$ or $y=kx$

To find out the constant of proportionality k , divide the variable y (total earned) by the variable x (number of hours)

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Take any point from the table

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3 years ago

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4 years ago

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3 years ago

A physical therapist wants to determine the difference in the proportion of men and women who participate in regular sustained p

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Answer:

A sample size of 1380 should be obtained.

Step-by-step explanation:

Minimum sample size:

The minimum sample size is of:

$n = (\frac{z}{E})^2(p_1(1-p_1) + p_2(1-p_2))$

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Within 3 percentage points, minimum sample size:

This is n for which $E = 0.03$ . So

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Rounding up:

A sample size of 1380 should be obtained.

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3 years ago