Question

Helpppp pleaseeee !!!!

Answer 1

You need only substitute x= 7 and calculate it.

f(7) = 3/(7+2) - √(7-3) = 3/9 -√4= 1/3 - 2 = 1/3 - 6/3=-5/3 ≈ -1.67

f(7) = - 1.67

Answer : -1.67.

Answer 2

When x = 7

Plug in 7 for x

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f(x) = (3/(x + 2)) - √(x - 3)

f(7) = (3/(7 + 2)) - √(7 - 3)

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First simplify each parenthesis.

7 + 2 = 9

7 - 3 = 4

f(7) = (3/9) - √(4)

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Simplify. Divide 3 with 9, and root 4

f(7) = 1/3 - 2

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Subtract

f(7) = 1/3 - 2

f(7) = 1/3 - 6/3

f(7) = - 5/3

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Answer: f(7) = -5/3

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hope this helps