1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Sergeeva-Olga [200]
3 years ago
12

6. a semicircle has as its diameter the hypotenuse of a right triangle shown below. determine the area of the semicircle to the

nearest tenth of a square centimeter. show how you arrived at your answer.
Mathematics
1 answer:
jeyben [28]3 years ago
7 0

Answer:

A = 137.3cm^2

Step-by-step explanation:

Given

See attachment

Required

The area of the semicircle

First, we calculate the hypotenuse (h) of the triangle

Considering only the triangle, we have:

\cos(68) = \frac{7}{h} --- cosine formula

Make h the subject

h = \frac{7}{\cos(68)}

h = \frac{7}{0.3746}

h = 18.7

The area of the semicircle is then calculated as:

A = \frac{\pi h^2}{8}

This gives:

A = \frac{3.14 * 18.7^2}{8}

A = \frac{1098.03}{8}

A = 137.3cm^2

You might be interested in
How would I set up the equation to find mRQS on this circle?
Leni [432]
MRQS=360-mSR. or mRQS=31x+13...To solve the measure of the minor arc RQS you would use this... 31x+13+(6+18x/2. )=360.
3 0
3 years ago
Mrs ameldos class has 5 students with blue eyes 7 with brown eyes 4 with hazel eyes and 4 with green eyes. Two students are sele
shusha [124]
4/20 x 7x20 = 28/400 or 7/100.
3 0
2 years ago
Of the 60 students in a school, 24 are currently studying chemistry. Exactly 16 of the girls in the school are not currently stu
garri49 [273]

Answer:

7 boys.

Step-by-step explanation:

Given:

Total number of students in the school = 60

Total number of girls in the school = 33

Total number of students currently studying chemistry = 24

Total number of girls not currently studying chemistry = 16

<u>Question asked:</u>

How many boys are currently studying chemistry ?

Solution:

<u>Total number of girls in the school = 33</u>

Total number of girls not currently studying chemistry = 16

Total number of girls currently studying chemistry = Total number of girls in the school - Total number of girls not currently studying chemistry

Total number of girls currently studying chemistry =  33 - 16 = 17                                                  

Now:-

<u>Total number of boys and girls currently studying chemistry = 24</u>

Total number girls currently studying chemistry = 17

Total number of boys currently studying chemistry = Total number of boys and girls currently studying chemistry - Total number girls currently studying chemistry

Total number of boys currently studying chemistry = 24 - 17 = 7

Therefore, 7 boys are currently studying chemistry.

5 0
3 years ago
imagine you live only one mile from work and you decide to walk.if you walk four milesb per hour how long will it take you to wa
olga nikolaevna [1]
1 mile * (1 hr / 4 mile) = 1/4 hr

1/4 hr = 15 min
5 0
3 years ago
ASAP HELP PLEASE!!!<br> What is the value of x?
sleet_krkn [62]
The answer is 45 degrease
8 0
3 years ago
Other questions:
  • Jeff answered all 25 questions on his chemistry test. For each right answer, he got 4 points and for each wrong answer he lost 2
    14·1 answer
  • How to solve vatiable equations 5x-7=7x-17
    5·1 answer
  • Please answer only if you know for sure :) Comes from pre-calc btw
    7·2 answers
  • Wich is the correct fraction representation of books to pens?<br><br> -6/5<br><br> -5/6<br><br> -6/6
    11·1 answer
  • starting salary is 50,000 and you recieve 4% increase at the end of every year for 15 years what is the total amount of dollars
    10·1 answer
  • Create a two column proof of each problem. Please help!!
    5·1 answer
  • Angie baked 100 cookies and 20 brownies.She wants to switch them into equal groups in the bank so each group must have the same
    6·1 answer
  • Alex says that there is no numbers between 1/3 and 1/4 . Why might he think that and what would you tell him? Is there a number
    15·1 answer
  • What is the greatest common factor of 57 and 76?
    12·2 answers
  • Find+the+z-scores+that+separate+the+middle+69%+of+the+distribution+from+the+area+in+the+tails+of+the+standard+normal+distributio
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!