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GREYUIT [131]
3 years ago
8

A function h(x) is defined as h(x)=−5/7 x−3. By how much h(x) will decrease/increase, if x decreases by 21?

Mathematics
1 answer:
Rudik [331]3 years ago
4 0

Answer:

h(x) increases by 15 units.

Step-by-step explanation:

Given that

h(x)=\frac{-5x}{7}-3\\ \\

This is nothing but a straight line with slope equal = -5/7

Hence rate of change of y with respect to x =-5/7

Or for a unit increase in we have 5/7 decrease in h(x)

Using the above we find that when x decreases by 21

we have h(x) to increase by 21(5/7)

=15

So y increases by 15 units

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Step-by-step explanation:

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x-axis ( length )

78 ÷ 1/4 = 78 x 4 = 312 cubes

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the total number of cubes fit in the closet is :

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2 years ago
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marin [14]

Answer:

I believe the answer is 20

Step-by-step explanation:

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3 0
3 years ago
Read 2 more answers
I don't understand this. Please explain the answer. I have a final exam coming up.
monitta
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7 0
2 years ago
Sophie borrowed $2000 and took 3 years to repay the loan and $900 interest.
dedylja [7]
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r is the interest rate per time period
n is the number of time periods.

in your problem:

i = 900
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formula becomes 900 = 2000 * r * 3

solve for r to get r = 900 / 2000 / 3 = .15

that's .15 interest rate per year = 15% per year.

at a nominal interest rate of .15 per year, the interest rate per month would be .15/12 = .0125 per month.

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Answer:

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2 years ago
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