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Mrrafil [7]
3 years ago
9

What is f(-3) for the function f(a)=-2a2-5a+4?

Mathematics
1 answer:
posledela3 years ago
4 0

Answer:

-25

Step-by-step explanation:

2a² - 5a + 4, for f(-3)

2(-3)² -5(-3)+4

2*(-27)+15+4

-54+19

= -25

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<span>L = 2W + 5
A = LW = 63
L = 63/W
W=63/L

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is already in quadratic equation form: ax^2 + bx + c = 0

use the quadratic formula to solve for two solutions:
x = ( -b +- sqrt( bb - 4ac ) ) / 2a

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