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Anna11 [10]
3 years ago
11

Find the average rate of change between f(-4) and f(-1) in the function f(x)=x^2+2x-8

Mathematics
1 answer:
wel3 years ago
7 0
I got (x+4) (x-2)
I feel like its wrong. Sorry i tried
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F(x) = -3(x+4)(x-6) x intercepts
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Step-by-step explanation:

To find the x- intercepts let y = 0 , that is

- 3(x + 4)(x - 6) = 0

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7 0
3 years ago
Please help me, i promise its worth it!!!
Rashid [163]

\\ \sf\longmapsto 2(L+B)=55

\\ \sf\longmapsto 2(\dfrac{4}{3}x+x)=55

\\ \sf\longmapsto \dfrac{8}{3}x+2x=55

\\ \sf\longmapsto \dfrac{8x+6x}{3}=55

\\ \sf\longmapsto \dfrac{14x}{3}=55

\\ \sf\longmapsto 14x=165

\\ \sf\longmapsto x=11.78

\\ \sf\longmapsto x\approx 12

Now

  • B=x=12
  • L=4/3(12)=4(4)=16
5 0
3 years ago
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elaine's mother is now 38 years old. seven years from now she will be five times as old as elaine will be then. write and solve
vfiekz [6]
In seven years her mother will be 38 +7 = 45 years old.

She will be 5 times as old, so divide 45 by 5: 45/5 = 9. Elaine will be 9 years old then, so she is 9-7 = 2 years old now.
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PLEASE HELP <br><br> if both integers are negative then their sum is
pav-90 [236]

Answer:

from what I know it should be always negative

Step-by-step explanation:

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