MATHEMATICS HIGH SCHOOL

If r is the radius of a circle and d is its diameter, which of the following is an equivalent formula for the circumference C=2πr?A. C=2πd
B. C=πD
C. C=πr2
D. C=πdr

Answers

Answer 1
Answer:

Answer:

Option B is correct

C=πD

Step-by-step explanation:

As per the statement:

If r is the radius of a circle and D is its diameter.

Given the circumference of the circle:

C = 2 \pi r             .....[1]

where,

r is the radius of the circle.

We know that:

diameter(D) = 2r

Substitute in [1] we have;

C = \pi (2r) = \pi D

Therefore, the equivalent formula for the circumference C=2πr is, C=πD
Answer 2
Answer: The answer is B. C=πD 

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Answers

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6 and y = 10?
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Answers

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Step-by-step explanation: Because 10times X when X=6 is 60 then 5 times Y when Y=10 makes it 50 then subtract the two numbers

60-50=10

Final answer:

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Explanation:

The expression given is 10x - 5y. We are asked to determine the value of this expression when x = 6 and y = 10. To do this, we replace x and y in the expression with these given values:

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Learn more about Algebraic Expressions here:

brainly.com/question/34192827

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Answers

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