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inn [45]
2 years ago
9

The value of the circumference of circle A with a diameter of 27 cm is three times the value of the area of circle B. What is th

e radius of circle B
Mathematics
1 answer:
Leya [2.2K]2 years ago
7 0
The answer is 3 cm.

Circle A's diameter is 27, right? However, circle A is 3 times the value of the area of B. Because of that, you need to do 27/3, the inverse, in order to get the diameter of circle B. 

Next, because radius is half of the diameter, you do 9 divided by 3 or 9 times 1/2.

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Which property justifies this question -5 x 12 = 12 x -5
cluponka [151]

Answer:

Commutative Property of Multiplication

Step-by-step explanation:

Commutative Property of Multiplication is the switching of the order first factor  (multiplicand) and the second factor (multiplier), which does not change the product. For example, 4 × 5 = 5 × 4

-5 × 12 = -60

12 × -5 = -60

8 0
2 years ago
A worker is exposed to 98 dB for five hours and 82 dB for three hours, giving an eight-hour working day. On average, what noise
julia-pushkina [17]

Answer:

92 dB

Step-by-step explanation:

Use the mean formula, mean = sum of elements / number of elements.

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mean = (98 + 98 + 98 + 98 + 98 + 82 + 82 + 82) / 8

mean = 736 / 8

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So, the average noise level is 92 dB

6 0
2 years ago
Listed below are several statements that relate to financial accounting and reporting. Identify the accounting concept that appl
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6 0
3 years ago
Identify the variable in: 7h + 3
7nadin3 [17]
Isn’t it h?

extra words so i can actually post this reply
3 0
2 years ago
Read 2 more answers
What is the value of x
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