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Arturiano [62]
3 years ago
8

Find the values of the variables

Mathematics
1 answer:
egoroff_w [7]3 years ago
4 0

Answer:

x=20degree and y=10degree

Step-by-step explanation:

5x+4x=180

=9x=180

=x=20

and

11x+7y=180

=18y=180

=y=10

plz give me brainlist

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Which equations represent two vertical asymptotes of the function y = 3 cot(4/3^x)?
Maurinko [17]

D ) x = 0 and x = 3 π / 4

.............................................

7 0
2 years ago
Find the area of the following circles. a. A circle with a 8-inch radius b. A circle with a 10-kilometer radius c. A circle with
Thepotemich [5.8K]
Area of a circle is A= \pi r^2.  The first one, a, the radius squared is 8*8=64.  So A=64 \pi.  If you multiply in pi as 3.14, you'll have 200.96 square inches.  The second one, b, the radius squared is 10*10=100.  So A=100 \pi square kilometers.  If you multiply in pi as 3.14 you'll have 314 square kilometers.  The third one, c, the radius squared is 14*14=196.  So A=196 \pi yd^2.  Or you could multiply in pi as 3.14 to get 615.44 yd squared.  For the last one, d, the radius squared is 22*22=484 cm.  Therefore, A=484 \pi cm^2, or multiply in 3.14 for pi to get 1519.76 cm squared.  There you go!
5 0
2 years ago
Read 2 more answers
What’s the correct answer for this?
slava [35]

Answer:

1/4

Step-by-step explanation:

Let's denote the probabilities as following:

Probability that a teenager has a sister:

P(A) = 12/28

Probability that a teenager has a brother:

P(B) = 7/28

Probability that a teenager has both a sister and a brother:

P(A⋂B) = 3/28

Probability that a selected teenager has a sister also has a brother, or in other words, he/she has a brother, given he/she had a sister:

P(B|A)

Let's apply the formula of conditional probability to work out P(B|A)

P(B|A) = P(A⋂B)/P(A) = (3/28)/(12/28) = (3*28)/(12*28) = 3/12 = 1/4

=> Option C is correct

Hope this helps!

7 0
3 years ago
Natalia needs 9 apples to make her famous apple pie. Natalia 25 apples. Naomi surprised her with a basket of 11 apples. How many
pychu [463]

Answer:

4

Step-by-step explanation:

25+11 because u have 25 an u get 11 more so that's 36 total

36÷9 because if your total is 36 an it takes 9 apples make 1 pie u would divide

4 0
2 years ago
In a class of 23 students 9 are taking German and nine are taking Spanish. Of the student studying German or Spanish, 3 are taki
Colt1911 [192]
8 Students are not enrolled. Reason being 9 are taking German and 9 are taking Spanish so 9+9= 18 but because 3 are taking both you subtract 3 so that would give you 15 and 23-15=8

Answer: 8 Students 
4 0
2 years ago
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