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OLEGan [10]
2 years ago
12

HELP ASAP!!! Find the value of 'A' in the set of complementary angles.

Mathematics
1 answer:
dem82 [27]2 years ago
7 0

answer:

180 - 63 = 117

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When writing a number in scientific notation, if you move the decimal point to the left 3 places, then you must _____. multiply
Naddika [18.5K]

Answer:

Multiply by 10.

Step-by-step explanation:

When writing a number in scientific notation, if you move the decimal point to the left 3 places, then you must multiply by 10.

6 0
2 years ago
The population of a city this year [2018] is 34,500. The population is expected to grow by 2% each year. What will be the popula
Talja [164]
The answer would be A. 39,300.

I got this by multiplying 34,500 by 2% and getting 690. Since 2018 is 7 years away from 2025, I multiplied 690 by 7 getting 4,830. I added the 4,830 to the original population of 34,500 and got my answer, 39,300. Hope I helped!
8 0
3 years ago
The area of a circle is 100 square miles. What is the diameter?
adell [148]

Answer:

The diameter of a circle with an area of 100 square miles is 20/√π miles.

Step-by-step explanation:

Area =100 = πr^2.

diameter = d = 2r.

100 = πr^2.

100/π = r^2.

√(100/π) = r.

10/√π = r.

d = 2r.

d = 2 * 10/√π.

d = 20/√π

5 0
2 years ago
Subtract 2 from q, then subtract 9 from the result
Bingel [31]

Your answer will be:

(q - 2) - 9

3 0
3 years ago
Consider a collection of envelopes consisting of 2 red envelopes​, 2 blue envelopes​, 2 green envelopes​, and 3 yellow envelopes
77julia77 [94]

The probability that all three randomly selected envelopes are yellow without replacement is 1/84.

<h3>What is a combination?</h3>

It is an arrangement of a set of numbers from a total set where the order of the set is not relevant.

We have,

2 red envelopes​

2 blue envelopes​

2 green envelopes​

3 yellow envelopes.

Total number of envelopes = 9

The probability that all three randomly selected envelopes are yellow without replacement.

= \frac{^3C_1}{^9C_1} \frac{^2C_1}{^8C_1} \frac{^1C_1}{^7C_1}

= (3/9) x (2/8) x (1/7)

= (3x2x1)/(9x8x7)

= 1/84

Thus,

The probability that all three randomly selected envelopes are yellow without replacement is 1/84.

Learn more about combination here:

brainly.com/question/14355408

#SPJ1

4 0
1 year ago
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