Mathematics: a.what is the value of this expression (5•7-2²•9+4³) divided by 9 b.Simplify the expression using the distributive property and combining like terms -8x(2x)+5(2x-12)+(-2)(5y-2)+(-3)(3y)

a.what is the value of this expression (5•7-2²•9+4³)

Ответ:

unkown77

17.09.2021

Mathematics

A. 7

B.−16x^2+10x−19y−56

Explanation:

A. In the first attachment

B. In the second attachment

a.what is the value of this expression (5•7-2²•9+4³) divided by 9 b.Simplify the expression using th

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Ответ:

potatogirl9300

01.02.2022

Mathematics

Step-by-step explanation:

h(t) = (t + 3)² + 5

A) h(t) = (t + 3)² + 5 -2 ≤ t ≤ 0

average rate of change in h over the change in t is given as:

$\frac{h(0)-h(-2)}{0-(-2)}=\frac{(0+3)^2+5-[(-2+3)^2+5]}{0+2}=\frac{14-6}{2} =4$

It does not have a negative average rate of change

B) A) h(t) = (t + 3)² + 5 -4 ≤ t ≤ -3

average rate of change in h over the change in t is given as:

$\frac{h(-3)-h(-4)}{-3-(-4)}=\frac{(-3+3)^2+5-[(-4+3)^2+5]}{-3+4}=\frac{5-6}{1} =-1$

It have a negative average rate of change

c) A) h(t) = (t + 3)² + 5 -3 ≤ t ≤ 4

average rate of change in h over the change in t is given as:

$\frac{h(4)-h(-3)}{4-(-3)}=\frac{(4+3)^2+5-[(-3+3)^2+5]}{4+3}=\frac{54-5}{7} =7$

It does not have a negative average rate of change

D) h(t) = (t + 3)² + 5 1 ≤ t ≤ 4

average rate of change in h over the change in t is given as:

$\frac{h(4)-h(1)}{4-(1)}=\frac{(4+3)^2+5-[(1+3)^2+5]}{4-1}=\frac{54-21}{3} =11$

It does not have a negative average rate of change

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a.what is the value of this expression (5•7-2²•9+4³) divided by 9 b.Simplify the expression using the distributive property and combining like terms -8x(2x)+5(2x-12)+(-2)(5y-2)+(-3)(3y)

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a.what is the value of this expression (5•7-2²•9+4³) divided by 9 b.Simplify the expression using the distributive property and combining like terms -8x(2x)+5(2x-12)+(-2)(5y-2)+(-3)(3y)​

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a.what is the value of this expression (5•7-2²•9+4³) divided by 9 b.Simplify the expression using the distributive property and combining like terms -8x(2x)+5(2x-12)+(-2)(5y-2)+(-3)(3y)