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SVETLANKA909090 [29]

4 years ago

14

Geometry Question. Please help

1 answer:

mamaluj [8]4 years ago

3 0

I think your answer might be C i am not sure but i am thinking it is

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Two cubes have surface areas of 72 square feet and 98 square feet. what is the ratio of the volume of the small cube to the volu

Serjik [45]

Let's denote the sides of the small and bigger cubes a and b respectively. Then, we can write that 6 $a^{2}$ =72, a= $2\sqrt{3}$ and 6 $b^{2}=98, b=[tex] \frac{7}{sqrt{3}}$ . The volume of the smaller cube is $2 sqrt{3} ^{3}$ = $24 sqrt{3}$ . The volume of the bigger cube is $\frac{7}{sqrt{3}}^{3}$ = $\frac{343}{3sqrt{3}}{$ . We have to find $\frac{24 sqrt{3}}{frac{343}{3sqrt{3}}$ = 216/343

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3 years ago

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Two green faucets take 4 hours together to fill a deposit. Two other blue faucets take half together. How long does it take to f

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It should take 2 hours to fill a tank

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3 years ago

Diamond used a number line to add. She started counting at 10, and then she counted until she was on the number −4 on the number

Sever21 [200]

Answer:

10 + (-14) = -4

Step-by-step explanation:

Given that,

Diamond used a number line to add. She started counting at 10, and then she counted until she was on the number −4 on the number line.

For addition, she will add 10 and (-14) as follows :

10 + (-14) = -4

So, the crrect option is (b) "10 + (-14) = -4".

8 0

3 years ago

A rectangle has a height of k^2+3k 2 +3k, squared, plus, 3 and a width of k^2+7k 2 +7k, squared, plus, 7. Express the area of th

vlada-n [284]

Answer: $k^4+10k^3+21k^2$

Step-by-step explanation:

Given

Height of rectangle is $h=k^2+3k$

Width is $w=k^2+7k$

The area of the rectangle is given by the multiplication of the height and width

$\Rightarrow A=\left(k^2+3k\right)\left(k^2+7k\right)\\\\\Rightarrow A=k^2k^2+k^2\cdot \:7k+3kk^2+3k\cdot \:7k\\\\\Rightarrow A=k^4+10k^3+21k^2$

Thus, the area of the rectangle is $k^4+10k^3+21k^2$ .

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3 years ago

SOMEONE HELP I NEED IT BAD!!!<br> solve for x

Mrac [35]

R=1 s=1 x=4 or you can basically double it and be like rs=2 x=8 i dont know your options or i could help better

7 0

4 years ago

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