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need the answers step by step for 10-13

Need The Answers Step By Step For 1013 class=

Sagot :

devishri1977

Answer:

Step-by-step explanation:

10) Plugin x = -10 in the equation

h(x) = 0.2x - 4.5

h(-10) = 0.2*(-10) - 4.5

         = - 2 - 4.5

        = -6.5

11)   Plugin a = 8 in the equation

g(a) = (-3/4)a + 2

[tex]g(8) = \dfrac{-3}{4}*8 + 2 \\\\= -3*2 + 2\\\\= -6 + 2\\\\= -4[/tex]

12) h(x) = 3x +3

h(x) = 0

3x +3 = 0

Subtract (-3) from both sides

    3x = - 3

Divide both sides by 3

      x = -3/3

x = -1

13) g(x) = - x - 5

g(x) = 4

-x - 5 = 4

Add 5 to both sides

-x = 4 + 5

-x = 9

Multiply both sides by (-1)

x = -9

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