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Bess [88]
4 years ago
11

What is the square root of 81?

Mathematics
1 answer:
Phoenix [80]4 years ago
5 0

Answer:

The square root of 81 is 9

Step-by-step explanation:

9×9=81

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Do these ratios form a proportion?
telo118 [61]

Answer:

No, because both of them will never be able to match; become equivalent. You would have to multiply 2 different numbers to make them match, meaning they would not be proportional. For a comparison to be proportional, the ratio you are trying to simplify to must be achieved by multiplying 2 numbers from the previous ratio by one LCD.

\frac{3\cdot 4}{7 \cdot 3} = \frac{12}{21}

They are<em> able</em> to make 12/21, but that does not mean they are proportional.

6 0
2 years ago
Find the exact length of the third side.<br> 5<br> 3
grandymaker [24]

I'm going to assume you want to find the third side of a triangle. We can use the pythagorean theorem to solve; a^2 + b^2 = c^2

a = 5

b = 3

c = ?

Solve.

5^2 + 3^2 = c^2

25 + 9 = c^2

34 = c^2

√34 = √c^2

5.8 ≈ c

Best of Luck!

5 0
4 years ago
PLEASE help me solve this problem
irakobra [83]

Answer:

that looks hard?

Step-by-step explanation:

8 0
3 years ago
It took a submarine 30 seconds to sink 225 feet, moving at a constant speed. The captain wants to know the submarine's speed.
Vladimir [108]

Answer:

Speed per second= 7.5 feet per second

Step-by-step explanation:

Giving the following information:

We have a distance (225 feet), and a time (30 seconds). Also, we know that the speed was constant.

<u>All we have to do is divide the distance by the time and determine the speed per second:</u>

Speed per second= distance / time

Speed per second= 225 / 30

Speed per second= 7.5 feet per second

5 0
3 years ago
Kat is painting the edge of a triangular stage prop with reflective orange paint. The lengths of the edges of the triangle are (
oksano4ka [1.4K]

3(4^2) + 3(4) - 20

3(16) +12 - 20

48 - 8

=40

The perimeter is 40 feet

7 0
3 years ago
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