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arlik [135]
2 years ago
5

The perimeter of a quarter circle is 10. 71 yards. What is the quarter circle's radius?

Mathematics
1 answer:
Ahat [919]2 years ago
4 0

Answer:

r = 3 yds

Step-by-step explanation:

The perimeter of a quarter circle is 1/4 of a circumference of the circle AND two straight edges that are the length of the radius. see image.

The circumference is given and using 3.14 for pi, we'll then solve for r. see image.

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What is the sum of the first five terms of the geometric sequence in which a1=10 and r=1/2?
Tomtit [17]
(10(1-(1/2)^5)/1-(1/2) = 

20(1-1/32)
=155/8
5 0
3 years ago
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What is the volume of a cylinder, in cubic centimeters, with a height of 2 centimeters
harina [27]

Answer:

<h2>         V ≈ 628.3 cm³</h2>

Step-by-step explanation:

Volume of cylinder:  V = π×r² × h

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Volume:

V = π×(10)²×2 = 200π cm³ = 628.318.... cm³ ≈ 628.3 cm³

7 0
3 years ago
. If a = 120°, find the measure of angles b, c and d.<br> Explain your reasoning.
Alchen [17]
∡b is a vertical angle to ∡a and therefore a twin, and we know that ∡a = 120°, thus since ∡b = ∡a, ∡b = 120° as well.

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∡a + ∡b is 120° + 120° thus 240°, since a circle has a total of 360°, 360 - 240 = 120, so the other two angles pick up that slack and divide it among each other evenly, 120/2 = 60, so ∡d = ∡c = 60°.
8 0
3 years ago
Multiply<br><br> 5( 4n -5)<br> tell me how
rewona [7]

Distribute

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<u>20n - 25</u>

8 0
3 years ago
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scZoUnD [109]

Answer:the 1st one is N=17

THE SECOND ONE IS X=35

Step-by-step explanation:

hope this helps

6 0
3 years ago
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