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jarptica [38.1K]
3 years ago
11

I am literally sok confused about these... please help

Mathematics
1 answer:
Charra [1.4K]3 years ago
7 0

Answer:

Step-by-step explanation:

Divide the diameter by 2 which will then be 7

Circumference of  circle is 2\pir

2*7=14

14*\pi=14\picm

I hope this helps!

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Hiking at a constant rate, Fred covers 20 miles in 4 hours. How far can he hike in 10 hours?
marysya [2.9K]
20 / 4 = 5 miles per hour
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4 years ago
If Raj randomly chooses a point in the square below, what is the probability that point is not in the circle? Assume that pi = 3
hodyreva [135]

Answer:

49.7%

Step-by-step explanation:

A cdircle is located within a square.

<u>Area of the circle</u>

Area = \pir^{2}, where r = 4 units.

Area Circle = 50.3 units^2

<u>Area of the square</u>

Area = l*w or l^2 for a square, since l = w

Area = (10 units)^2

Area = 100 units^2

<u>Area in the square but outside the circle</u>

This is the difference [Square minus Circle Areas]

Square minus Circle Areas = 100 - 50.3  or <u>49.7 units^2</u>

<u>Probability</u>

The probability of picking a point in the square that is not in the circle is the ration of the two areas:  <u>[Outside Circle/Square]x100%</u>

<u></u>

<u>(</u>49.7 units^2)/(100 units^2)x100% = 49.7%

<u></u>

6 0
2 years ago
Please answer Correctly for brainly
qaws [65]

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7 0
3 years ago
Write your answer in simplest radical form​
Akimi4 [234]

Answer:

s = 17

Step-by-step explanation:

Using the tangent ratio in the right triangle and the exact value

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tan60° = \frac{opposite}{adjacent} = \frac{17\sqrt{3} }{s} = \sqrt{3} ( multiply both sides by s )

s × \sqrt{3} = 17\sqrt{3} ( divide both sides by \sqrt{3} )

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4 0
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12. On a math test, Ana writes 9 as the solution to 27.<br> PART A<br> Find the correct solution.
scoray [572]

Answer:

11. B.

12. 3

Step-by-step explanation:

\sqrt{81}-\sqrt{25}=9-5=4

\sqrt[3]{27}=3 since 3^{3}=27

4 0
3 years ago
Read 2 more answers
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