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lyudmila [28]
3 years ago
13

If the radius of a circle is 10 feet, how long is the arc subtended by an angle measuring 81°?

Mathematics
2 answers:
yawa3891 [41]3 years ago
4 0

Answer:

9/2

Step-by-step explanation:

LenKa [72]3 years ago
3 0
Circumference of the entire circle = 2 * PI * radius
circumference = 2 * PI * radius
circumference = <span> <span> <span> 62.832
81 degrees is (81 / 360) or .225 of the entire circumference
so the 81 degree arc = .225 * 62.832 = 14.137 feet

</span></span></span>
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Answer:

The money invested in account at 6 % rate is $ 9230.77

The money invested in account at 6.5 % rate is $ 769.23

Step-by-step explanation:

Given as :

The total amount saves in two account = $ 10,000

The two rate of interest are 6 % and 6.5 % at simple interest

The interest earn at 6 % rate = $ 632

The interest earn at 6.5 % ate = $ 50

Now, Let The amount deposit at 6 % rate = $ x

And The amount deposit at 6.5 % rate = $ 10,000 - $ x

<u>From Simple Interest method</u>

Simple Interest = \dfrac{\textrm principal \times \textrm Rate\times \textrm time}{100}

or, At 6.5 % rate

$ 50 =  \dfrac{\textrm (10,000 - x ) \times \textrm 6.5\times \textrm 1}{100}

or, 10000 - x =  \frac{5000}{6.5}

Or, 10000 - x = 769.23

∴  x = 10000 - 769.23

I.e x = $ 9230.77

So , At 6.5 % the amount deposit = 10,000 - 9230.77 = $ 769.23

So, At 6 % The amount deposit  = $ 9230.77

Hence The money invested in account at 6 % rate is $ 9230.77

And  The money invested in account at 6.5 % rate is $ 769.23 Answer

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4 years ago
Solve for P if E = 2.50 and r = 2.00 given that E = P4πr2
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Answer:

P = 0.05

Step-by-step explanation:

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Step-by-step explanation:

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Step-by-step explanation:

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