EvnikaP459836 EvnikaP459836

30-10-2022
Mathematics

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the funtions F ang G are defined as fallows F(x)=-4x-1. g (x)= 4x2 -xfind f(7) and g (-5)f(7)=g (-5)=

the funtions F ang G are defined as fallows Fx4x1 g x 4x2 xfind f7 and g 5f7g 5 class=

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DaniylahK758566 DaniylahK758566

30-10-2022

f(7) = -29

g(-5) = 105

Explanation:

f(x) = -4x - 1

f(7) means x will be replaced with 7

f(7) = -4(7) - 1

f(7) = -28 - 1

f(7) = -29

g(x) = 4x² - x

g(-5) means x will be replaced with -5

g(-5) = 4(-5)² - (-5)

g(-5) = 4(25) + 5 = 100 + 5

g(-5) = 105

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