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enyata [817]
3 years ago
10

Find f(–2) for the function f(x) = 3x^2 – 2x + 7

Mathematics
2 answers:
seraphim [82]3 years ago
4 0
Replace every x in the function with a -2. 3(-2)^2 - 2(-2) + 7. Simplifying gives you 3(4) + 4 + 7. Do the math now. 12 + 4 + 7 = 23
allochka39001 [22]3 years ago
3 0

You're correct its 23 on edge

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Step-by-step explanation:

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GalinKa [24]
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7 0
3 years ago
A polynomial expression is shown below.
tester [92]
The polynomial is (mx^3+3)(2x²+5x+2)-(8x^5 +20x^4)
if it is reduced to 8x^3+6x²+15x+6, so we can find the value of m

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finally

</span>m(2x^5+5x^4+2x^3)=<span>4(2x^5+5x^4+2x^3), and after simplification
</span>
C:  m=4

<span>4. When the expression is factored x²-3x-18 completely, 
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one of its factor is x-6
<span>x²-3x-18=0
</span>D= 9-4(-18)= 81, sqrtD=9 x=3-9/2= -6/2= -3, and x=3+9 / 2= 6
so <span>x²-3x-18= (x-6)(x+6)

</span>
3 0
2 years ago
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Murljashka [212]

Answer:

The answer is A - $0.50 per cup

Step-by-step explanation:

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5 0
3 years ago
Maths revision 6 can someone help
Inga [223]

20) 13=2f+5

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answer B

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6 0
3 years ago
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