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Lesechka [4]
3 years ago
6

the volume of a triangular prism is increased by a factor of 8. By what factor is the surface area increased?

Mathematics
1 answer:
hoa [83]3 years ago
8 0
Answer:
4
Step-by-step explanation:
when all the lengths are multiplied by x (length scale factor), the volumes are multiplied by x³ (volume scale factor).
∴ when volume scale factor = 8
the length scale factor = ∛8 = 2
while When all the lengths are multiplied by x (length scale factor), the areas are multiplied by x² (surface area scale factor).
∴ when the length scale factor =  2
the surface area scale factor = 2² = 4
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victus00 [196]

Answer:

The solution of the given quadratic equation is 1 and (-10).

Step-by-step explanation:

2x^2+18x=20

x^2+9x=\frac{20}{2}

x^2+9x-10=0

ax^2+bx+c=0

Solving equation by quadratic formula:

Here , a = 1,b = 9, c = (-10)

D=b^2-4ac=(9)^2-4(1)(-10)=121

x=\frac{-b+{\sqrt{D}}}{2a}=\frac{(-9)+\sqrt{121}}{2(1)}=1

x=\frac{-b-{\sqrt{D}}}{2a}=\frac{(-9)-\sqrt{121}}{2(1)}=(-10)

The solution of the given quadratic equation is 1 and (-10).

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3 years ago
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Step-by-step explanation:

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Anna007 [38]
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4 0
3 years ago
You spend 1/5 of your income on car payment. You spend 3/8 of the remainder of your income on rent. What fraction of income is s
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Step-by-step explanation:

1/5 of <u>total</u> income - spent on car

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