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ratelena [41]
3 years ago
10

Evaluate f(x) = -2x² -4 for x=3 A. -10 B. 10 C. -18 D. -22

Mathematics
2 answers:
kenny6666 [7]3 years ago
8 0
f(x) = -2x^2-4 \\ f(x) = -2(3)^2-4 [tex][plug in 3 into your x value][tex]\\ f(x)=-18-4[tex] [3 squared equals 9. Now multiply 9*(-2) = -18[tex]\\ f(x)=-22 [ -18-4]
andrew-mc [135]3 years ago
3 0
F(x) = - 2 x² - 4 for x = 3

f(3) = - 2*3² - 4

f(3) = -2*9 - 4

f(3) = -18 -4

f(3) = -22

Answer D

hope this helps!
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Answer:

10.6 ft

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3 years ago
Maymona book club is ordering new novels, She knows that the total cost of 6 books is $90, and 10 books cost $150. Write an equa
aleksandr82 [10.1K]

Answer:

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Step-by-step explanation:

<h2>Okay so let's approach this problem!</h2><h2 />

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Just replace

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