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Cloud [144]
3 years ago
5

What is the measure of angle b?

Mathematics
1 answer:
Sindrei [870]3 years ago
4 0

Answer:

A. 36*

Step-by-step explanation:

first find angle a:

180-117=63

a=63

then find angle b by subtracting 81 and 63 from 180

180-81=99

99-63=36

angle b = 36

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The ratio of two numbers is 4 to 3. The sum of the numbers is 49. What are the two numbers?​
Irina-Kira [14]

Answer:

28/21

Step-by-step explanation:

28/21 is the equivalent to 4/3.

We know this is the fraction we are looking for because 28 + 21 = 49

Hope that helps!

4 0
2 years ago
Please help me! Math
erastova [34]
A. 3/2
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3 0
3 years ago
A submarine descends at a rate of 2.6 kilometers per hour. If the ocean floor is 6.24 kilometers below sea level, how long will
navik [9.2K]

Answer

Find out the how long will it take the submarine to descend to the ocean floor

To proof

Formula

r = \frac{d}{t}

where  d  =  distance traveled (or descended),

r  = rate of travel , t  = time

As given

A submarine descends at a rate of 2.6 kilometers per hour. If the ocean floor is 6.24 kilometers below sea level .

put all the values in the above formula

2.6 = \frac{6.24}{t}

t = \frac{6.24}{2.6}

t = 2.4 hour

it take 2.4 hours the submarine to descend to the ocean floor .

Hence proved


8 0
3 years ago
3x-5)(x2+2x+1) Please show working
Lerok [7]

Answer:

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Step-by-step explanation:

SOOOOOOO you use the distributive property and multiply by each term.

8 0
3 years ago
Read 2 more answers
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Maurinko [17]
4 Americans can arrange themselves in 4! ways.similarly ,3 Frenchmen can arrange themselves in 3! ways.3 Englishmen can arrange themselves in 3! ways.now these 3 groups of same nationality people can be arranged among themselves in 3! ways.so total number of ways = 3!4!3!3!
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3 years ago
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