3 years ago

Which set of side lengths defines a right triangle?

1 answer:

3 0

If you have a lot of Pythagorean triples memorized, then you'd probably know immediately, but if not, then you can use the Pythagorean Theorem to calculate each one:

A.: 7^2+9^2=49+81 which is not equal to 13^2, or 169

B.: 5^2+12^2=25+144 which is not equal to 14^2, or 196

C.: 8^2+15^2=64+225=17^2=289

D.: 9^2+12^2=81+144 which isn't equal to 14^2, or 196

Therefore, the correct answer is C.

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A snowball has a radius of 7cm. What is the volume of the snowball?

BabaBlast [244]

Answer:

The volume is 1436.8 $in^2$ .

Step-by-step explanation:

-To find the volume of a sphere, you need the formula:

$V = \frac{4}{3} \pi r^3$

-Use the radius for the formula:

$V = \frac{4}{3} \pi 7^3$

-Then, you solve:

$V = \frac{4}{3} \pi 7^3$

$V = \frac{4}{3}$ × $\pi$ × $7^3$

$V = \frac{4}{3} \pi$ × $343$

$V = \frac{1372}{3} \pi = 1436.755$

-Round the answer to the nearest tenth:

$V = 1436.8$

So, therefore the volume is 1436.8 $in^2$ .

7 0

2 years ago

Please can someone help with this question. I don't understand

Umnica [9.8K]

Answer:

See below,please.

Step-by-step explanation:

Volume of water = meter reading (11) - meter reading (8)

$= 4598 - 4559 = 39 {m}^{3}$

7 0

2 years ago

Find the solution set of 5x+7> 17.

Soloha48 [4]

Answer:

x > 2

Step-by-step explanation:

5x +7 > 17

5x > 10

x > 2

8 0

3 years ago

Read 2 more answers

Angeline would like to make 8 identical bowls for a gift to her family. Each bowl required 3/4 lbs. of clay. The clay is sold in

lana66690 [7]

Answer:

Step-by-step explanation:

8 × .75 = 6lbs

she'd need 6lbs so she'd buy two bags of 5lbs

8 0

2 years ago

Distribute &combine 2 -(-x+5)

natita [175]

2-(-x+5)
2+x-5
x-3
I decided to included the steps just in case you needed them

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3 years ago