2 years ago

Find the product. Simplify your answer. (2u–4)(u2+2u–1)

Mathematics

1 answer:

Goshia [24]2 years ago

4 0

It would be 2u3+4u2-2u-4u2-8u+4= 2u3-10u+4

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The surface area of a cone is 54 square inches. What is the surface area of a similar cone that is three times as large?

12345 [234]

Given:

Given that the surface area of the cone is 54 square inches.

We need to determine the surface area of the cone that is similar to the cone three times large.

Surface area of the similar cone:

Let us determine the surface area of the similar cone.

The surface area of the similar cone can be determined by multiplying the surface area of the cone by 3. Because it is given that the similar cone is three times large.

Thus, we have;

$SA = 3 \times 54$

$SA=162$

Thus, the surface area of the similar cone is 162 square inches.

6 0

2 years ago

M i crrect please explain

kvv77 [185]

I got -6/25 Sorry I can't really explain this try web2.0calc.com it helps alot with math.

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2 years ago

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What is the seventh term of a geometric sequence that has a common ratio of –3 and the first term is –4?

rjkz [21]

An= A1 r ^(n-1)
An= -4 (-3)^(n-1)
An= -4 (-3)^(7-1)
An= -4 (729)
An= -2916

I think this is right :)

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2 years ago

What is the answer? A: 5/20 B:5/11 C: 19/20 D: 1 9/20

Kaylis [27]

The answer is D.
Find common factors of denominators.
15+10+4/20= 29/20= 1 9/20 :)

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2 years ago

(–9) • (8) – (9) • (–9)

elena-s [515]

Answer:

Step-by-step explanation:

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2 years ago