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Vaselesa [24]
3 years ago
14

Evaluate the function f(x) = -3x² – 20 Find f(-9)​

Mathematics
1 answer:
dexar [7]3 years ago
8 0

Answer:

f(-9) = -263

Step-by-step explanation:

Find f(-9) by plugging in -9 into the function, and simplifying it:

f(x) = -3x² - 20

f(-9) = -3(-9)² - 20

f(-9) = -3(81) - 20

f(-9) = -243 - 20

f(-9) = -263

So, the answer is f(-9) = -263

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Step-by-step explanation:

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8 0
3 years ago
Anthony, Brian and Chris are hired for a job. If Anthony and Brian are working together they will finish the job in minutes. If
Tcecarenko [31]

Answer:

12.5

Step-by-step explanation:

Let  individual time taken by Anthony, Brian and Chris = t1 , t2 , t3 respectively

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Total time taken by B & C = 1 / t2  + 1 / t3 , lets suppose = 20 {iii}

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3 years ago
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Kipish [7]
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5 0
3 years ago
What are the answer and how do i solve it
Shkiper50 [21]
I'll answer 3 of these questions. 
For future notice, make sure to limit yourself to asking at most, 3 individual questions per question. :)

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Multiply both sides by 10.
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2) n/2+5=3
Subtract 5 from both sides.
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Multiply both sides by 2.
(n/2)*2=(-2)*2
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3) 3p-2=-29
Add 2 to both sides.
(3p-2)+2=(-29)+2
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Divide both sides by 3.
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Hope this helps.
-Benjamin


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4 years ago
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Brrunno [24]
The answer is letter C
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