2 years ago

If f(x)=2x+4 and g(x)=3x-7; then find (f+g)(4)

Mathematics

1 answer:

Arisa [49]2 years ago

5 0

2x+4 +3x-7
5x-3(4)
(f+g)(4)=20x-12

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Sloan [31]

and 19

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Please help thank you very much

sineoko [7]

Answer:

lower right

Step-by-step explanation:

Part 1

Givens

a1 = - 20

d = +4

n = 30

Equation

a30 = a1 + (n - 1)d

Solution

a30 = -20 + (30 - 1)*4

a30 = -20 + 29*4

a30 = - 20 + 116

a30 = 96

=====================

Part 2

Formula

Sum = (a1 + L)*n/2

n = 30

So only the two on the right can be considered

a1 = -20

L = 96

Sum = (-20 + 96)30/2 is the bottom right. D if you think of it that way.

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2 years ago

What is the length of side s of the square shown below?

Lerok [7]

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