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LiRa [457]
3 years ago
8

If f(x) = 3x2 – 12x + 4, find f(–2). A) -40 B) -20 C) 20 D) 40

Mathematics
1 answer:
Digiron [165]3 years ago
8 0

Answer:

The answer is D

Step-by-step explanation:

f(x) = 3x² - 12x + 4

f(-2) = 3(-2)² - 12(-2) + 4

= 12 + 24 + 4

= 40

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PLEASE HELP, WILL GIVE BRAINLIEST!!!<br><br><br> Find the inverse of f(x)=6x-4<br> and find f^-1(62)
Lena [83]
Answer: 11

=========================

Explanation:

To find the inverse, or f^-1 of a function, you first replace the y= 6x-4 with x=6y-4

Finding the inverse from here is basically just finding y in terms of x.

1) x=6y-4
2) x+4=6
3) (x+4)/6= y

y= (x+4)/6 is now your f^-1.

Now that you have your inverse, replace 62 with your x in y=(x+4)/6

1) (62+4)/6
2) 66/6
3) 11

Therefore, f^-1(62)= 11

Hope this helps :)
5 0
2 years ago
Read 2 more answers
Solve for F in terms of K:<br><br> <img src="https://tex.z-dn.net/?f=K%3D%5Cfrac%7B5%7D%7B9%7D%28F%2B459.67%29" id="TexFormula1"
Pepsi [2]

Answer:

see explanation

Step-by-step explanation:

Multiply both sides by 9 to eliminate the fraction

9K = 5(F + 459.67) ← divide both sides by 5

F + 459.67 = \frac{9}{5} K ( subtract 459.67 from both sides )

F = \frac{9}{5}K - 459.67

8 0
3 years ago
Read 2 more answers
98 point reward if you help
Dennis_Churaev [7]

Answer:

the right answer is -3

Step-by-step explanation:

When we analyze the sequence it is observed that all numbers are multiplied by the value of -3.

using the formula

q = \frac{t2}{t1}= \frac{6}{-2}= -3

4 0
3 years ago
What is the surface area of the rectangular prism?
azamat

Answer:

its 288 if u search formula for surface area of a rectangular prism

Step-by-step explanation:

4 0
3 years ago
An amount of $21,000 is borrowed for 10 years at 3.25% interest, compounded annually. If the loan is paid in full at the end of
Yanka [14]
The formula for total loan cost is attached.
10 years = 120 payments
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total = <span>0.0027083333 * 21,000 * 120 / (1-(1</span><span><span>.0027083333)-120 </span> </span>
total = 6,825 / (1- <span> <span> <span> 0.7228448406 </span> </span> </span> )
total = 6,825 / <span> <span> <span> 0.2771551594 </span> </span> </span>
total = <span> <span> <span> 24,625.20 </span> </span> </span>


4 0
3 years ago
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