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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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A random telephone survey of 1,091 adults (aged 18 and older) was conducted by an online tax preparation and e-filing service. T
vovikov84 [41]

Answer:

a. The percentage of all taxpayers who file electronically is 58%

b. 654 people used an accountant or professional tax preparer preparing the tax return

Step-by-step explanation:

According to the given data, in order to estimate the percentage of all taxpayers who file electronically, we would have to make the following calculation:

percentage of all taxpayers who file electronically=<u>634×</u>100%=0.58

                                                                                    1,091

Hence, the percentage of all taxpayers who file electronically is 58%

In order to calculate how many people used an accountant or professional tax preparer for preparing the tax return, we would have to make the following calculation:

people used an accountant or professional tax preparer= <u>60%</u>×1,091=654

                                                                                                 100%

654 people used an accountant or professional tax preparer preparing the tax return.

8 0
3 years ago
PLEASE HELP ME !!!! What is the value of |-25| ?
Contact [7]

Answer: 25

Step-by-step explanation: The absolute value is the distance between a number and zero. The distance between  − 25  and  0  is  25

5 0
4 years ago
Read 2 more answers
The school band is comprised of middle school students
iogann1982 [59]

Answer:if there are 7 HS students for every 2 MS students and there are 18 MS students...

18/2 = 9

9(7) = 63

So, there are 18 + 63 = 81 total students.

Since we had 9 parts last year also (1:8), 81/9 = 9 students are in each part. 8 students in each part are HS and one is MS.

8(9) = 72 HS students last year.

72 - 63 = 9 fewer HS students than last year.

Hope this helps!

8 0
4 years ago
Which is more, 1 kilometer or 1,359 meters?
algol13

Answer:

1359 meters

Step-by-step explanation:

thenks and mark me brainliestt :))

7 0
3 years ago
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Giovanna used the calculations below to determine the height of a stack of 7 books that are each 2 and StartFraction 5 over 8 En
igor_vitrenko [27]

The error Giovanna made in her calculation is multiplying 7 by 2 and adding with 5/8(step 3)

<h3>Fraction</h3>

Her calculation:

  • 7 (2 and StartFraction 5 over 8 EndFraction): 7(2 5/8)

  • 7 (2 + StartFraction 5 over 8 EndFraction): 7(2 + 5/8)

  • 14 + StartFraction 5 over 8 EndFraction: 14 + 5/8

  • 14 and StartFraction 5 over 8 EndFraction: 14 5/8

Her error was multiplying 7 by 2 and adding with 5/8(step 3)

Correct calculation:

7(2 + 5/8)

= 14 + 35/8

= (112+35) /8

= 147/8

= 18 3/8

Learn more about fraction:

brainly.com/question/11562149

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7 0
2 years ago
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