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3 years ago

PLEASE HELP ME

Mathematics

1 answer:

ElenaW [278]3 years ago

6 0

Answer:

Step-by-step explanation: One number is four more than the other." is represented as 'x'

"One number is four more than the other." is represented as 'x+4'

"Their sum is fourteen." is represented as 'x+(x+4)=14'

"Find both numbers."

x+(x+4)=14

x+x+4=14 (add like terms)

2x+4=14 (isolate your 'x' variable on one side of the equality by subtracting 4 from both sides)

2x+4-4=14-4

2x=10 (isolate your 'x' variable by dividing by 2 from both sides)

2x/2=10/2

x=5 (this is the answer to one number)

x+4=5+4=9 (plug in 5 for 'x' and this is the answer to four more than another)

Your two numbers are 5 and 9.

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3 years ago

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wolverine [178]

Option C: $\frac{x^{2}-9}{x^{2}-4}$ is the product of the rational expression.

Explanation:

The given rational expression is $\frac{x+3}{x+2} \cdot \frac{x-3}{x-2}$

We need to determine the product of the rational expression.

Product of the rational expression:

Let us multiply the rational expression to determine the product of the rational expression.

Thus, we have;

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Let us use the identity $(a+b)(a-b)=a^2-b^2$ in the above expression.

Thus, we get;

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Hence, Option C is the correct answer.

6 0

3 years ago

I would like a Brainiac to help me with this thing - Thanks!

klemol [59]

Lateral surface area = (23×12.04)+(23×8)+(23×9)
= 276.92 + 184 + 207
=667.92
= 668m²

Total surface area = 668 + 1/2(2×8×9)
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LUCKY_DIMON [66]

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