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Zinaida [17]
3 years ago
5

Which side lengths form a right triangle?

Mathematics
2 answers:
Masja [62]3 years ago
6 0
The answer is A. 5,12,13
Vika [28.1K]3 years ago
3 0
Answer A. That is the only one. The rest are not true. Hope his helps! I would appreciate it if you gave me brainliest. Thanks! =D
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What is the volume of a cone that has a radius of 4 cm and a height of 9 cm?
vodka [1.7K]
For any sort of pyramid or cone, the volume is 1/3 of the volume of a prism with the same base and height. Since the volume of a prism/cylinder is V=Bh, the volume of a pyramid/cone is V=\frac{1}3Bh.

In this case, our base is a circle, which has a radius of 4 cm.
The area of a circle is A=\pi r^2 where r is the radius.
A=\pi (4)^2=\pi (4\times4)=16\pi=B

We now know that our base is 16π cm.
We also know that our height is 9 cm.
Let's plug these into our volume formula.

V=\frac{1}3\times16\pi \times9

Use 3.14 to approximate pi as the question states. 16 × 3.14 = 50.24.

V\approx\frac{1}3\times50.24\times9

We could punch all of that into our calculator to get the same answer, but since 1/3 of 9 is clearly 3, let's just go with that.

V\approx3\times50.24

\boxed{V\approx150.72\ cm^3}
8 0
3 years ago
Read 2 more answers
Reduce 18/45 to the simplest form.
horrorfan [7]
The simplest form of 18/45 is 2/5
4 0
3 years ago
Read 2 more answers
a concert has 6 selections. there are 515 seats in each selection. about how many seats are in the concerts hall
Serjik [45]

Answer:

3090

Step-by-step explanation:

6 x 515

6 0
3 years ago
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How do I go about solving this? <br> ((-3) -2) x 5
ss7ja [257]

Answer:

-25

Step-by-step explanation:

i got -25. i just used a calculator

8 0
3 years ago
3. Then she needs to find her "heart rate reserve" h by subtracting her average resting heart rate
Anna007 [38]

Answer:

r = m x h

Step-by-step explanation:

8 0
3 years ago
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