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Leni [432]
3 years ago
7

How do I find b and c?

Mathematics
1 answer:
Alja [10]3 years ago
6 0

Answer:

b = 25.03,

c = 32.67   to the nearest hundredth.

Step-by-step explanation:

To find b and c you can use the trigonometry of a right angled triangle.

tan 50 = b / 21

b = 21 tan 50

b =  25.03

cos 50 = 21 / c

c = 21 / cos 50

= 32.67

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64.9 + (0.65 * 64.9)

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3 years ago
A boat that sold for $12,500 had a sales tax of $562.50. How much is the tax on a boat that sells for $9,550?
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Answer:

$429.75

Step-by-step explanation:

First, find the tax rate on the sale of the boat:  Let r represent that rate.  Then,

$12,500r = $562.50.  Solving for r, we get r = $562.50 / $12,500 = 0.045

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3 years ago
8 pens cost £4.72<br> How much would 13 pens cost?
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Step-by-step explanation:

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3 years ago
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The ten sides of a regular decagon are colored with five different colors, so that all five colors are used, and sides that are
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Answer:

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Explanation:

Number the sides of the decagon: 1, 2, 3, 4, 5, 6, 7, 8, 9, and 10, from top (currently red) clockwise.

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  • The side number two can be colored with four different colors: 4
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Thus, by the multiplication or fundamental principle of counting, the number of different ways to color the decagon will be:

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