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Natalka [10]
3 years ago
5

Given f(x) = 4x4 + 5x3 – 15x2 – 45, find f(–3).

Mathematics
2 answers:
poizon [28]3 years ago
6 0

Answer:

C)  

f(–3) = 9

Step-by-step explanation:

Given f(x) = 4x^4 + 5x^3 – 15x^2 – 45

f(-3) means let x = -3

f(-3) = 4(-3)^4 +5(-3)^3 – 15(-3)^2 – 45

       =4(81) +5(-27) -15(9) -45

        = 324 - 135 - 135 -45

           =9

mars1129 [50]3 years ago
5 0

Answer:

The answer is C.

Step-by-step explanation:

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4 0
3 years ago
Solve this equation. Enter your answer in the box.<br> 13(y+7)=3(y−1).
Fofino [41]

★To Solve :

\rm\blue{13(y+7) = 3(y-1)}

⠀⠀⠀⠀⠀

★SOLUTION :

\rm\red\leadsto{13(y+7) = 3(y-1)}

\rm\red\leadsto{13\times{y}+13\times7= 3\times{y}-3\times1}

\rm\red\leadsto{13y+91=3y-3}

\rm\red\leadsto{13y-3y=-3-91}

\rm\red\leadsto{10y=-94}

\rm\red\leadsto{} y =\dfrac{   { \cancel{-94}}^{ \:-45 } }{   { \cancel{10}}^{ \: 5} }

\rm\red\leadsto{y=}\dfrac{-47}{5}

____________________

5 0
3 years ago
Read 2 more answers
Somebody help with both questions
Minchanka [31]
1. X=5
2. I think I’m not sure is - 5.04
8 0
3 years ago
Plzz how do i find the area w just the base
Roman55 [17]

Answer:

8x8= 64 divided by 2 = 37

Step-by-step explanation:

7 0
3 years ago
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Index notation simplify 4^9 x 4^3
LenKa [72]

Answer:

4^{12}

Step-by-step explanation:

Using the rule of exponents

a^{m} × a^{n} = a^{(m+n)} , then

4^{9} × 4^{3} = 4^{(9+3)} = 4^{12}

7 0
3 years ago
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