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lawyer [7]
3 years ago
15

F(x)=-9x^2-7x+8, x=5

Mathematics
1 answer:
VashaNatasha [74]3 years ago
4 0
F(x) = -9x^2 - 7x + 8
f(5) = -9(5^2) - 7(5) + 8
f(5) = -9(25) - 35 + 8
f(5) = - 225 - 35 + 8
f(50 = - 252 <==
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GEOMETRY!!!! CLICK ON THE PICTURE
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Answer:

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7 0
3 years ago
After how many seconds is the height 68 feet? When the equation is h=-16t2+64t+8
Rudiy27
<span>68=-16t2+64t+8
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5 0
3 years ago
∠A and ∠B are vertical angles. If ∠A=8x+14 and ∠B=2x+50, what is m∠B?
Maslowich

Answer:

∠B = 62°

Step-by-step explanation:

Because ∠A and ∠B are vertical angles they are equal hence we can write

∠A = ∠B

8x + 14 = 2x + 50

Now we have to solve for x

To do so, subtract 2x on both sides of the equation:

6x + 14 = 50

Now, subtract 14 on both sides of the equation

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Now, divide 6 on both sides of the equation

x = 6

To find m∠B you have to you have to plug in x = 6 back into the ∠B equation

∠B = 2(6) + 50

∠B = 62°

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3 years ago
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