MATHEMATICS MIDDLE SCHOOL

The expression −8x^3(7x^6 − 3x^5) is equivalent to:A. −56x^9 + 24x^8
B. −56x^9 − 24x^8
C. −56x^18 + 24x^15
D. −56x^18 − 24x^15
E. −32x^4

Answers

Answer 1
Answer: -8x^3(7x^6 - 3x^5) =(-8x^3) \cdot 7x^6 - (-8x^3) \cdot 3x^5 = \n \n =-56x^(3+6) +24x^(3+5)= -56x^(9) +24x^(8) \n \nAnswer : \ A. \ \ -56x^9 + 24x^8
Answer 2
Answer: -8x^3(7x^6-3x^5)=-56x^9+24x^8

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@apologiabiologyWhat is the approximate volume of the cone? Use 3.14 for π.



A.
2120 cm3

B.
4239 cm3

C.
6359 cm3

D.
1272 cm3

Answers

V=(1/3)hpir^2
h=9
r=15
V=(1/3)9pi15^2
V=3pi225
V=675pi
aprox pi=3.14
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A is answer
Hi There!

What is the approximate volume of the cone? Use 3.14 for π.



A.
2120 cm3

B.
4239 cm3

C.
6359 cm3

D.
1272 cm3

I just helped someone yesterday on this problem but, Answer is 2120 cm3

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What is 3/4 and 7 3/4 in decimal form?

Answers

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You must divide the top number by the bottom number

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I hope that's help:0
3/4 in decimal form is .75 and 7 3/4 in decimal form is 7.75
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