Mathematics

Mathematics, 01.09.2019 13:30, loloroyroy264

What is the formula for a half circle?

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Mathematics, 24.06.2019 06:00, cigo145

Decide, without calculation, if each of the integrals below are positive, negative, or zero. let d be the region inside the unit circle centered at the origin. let t, b, r, and l denote the regions enclosed by the top half, the bottom half, the right half, and the left half of unit circle, respectively.

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Mathematics, 25.07.2019 00:30, TrueKing184

Pi is defined as the ratio of the circumference of a circle to the diameter of that circle. which of the following correctly explains why the formula for the circumference of a circle is 2 pi r? a. two times pi equals the distance from one side of the circle to the other. when you multiply around the circle, or the circumference. b. pi times r equals the diameter of the circle. the diameter is a half circle, so when you multiply it by 2, you get the distance around the entire circle, or the circumference. c. two times r equals the diameter of the circle. pi is needed for all circle formulas, so you multiply by pi since you are finding the circumference. d. two times r equals the diameter of the circle. pi equals the circumference divided by the diameter. when you multiply, the diameter is in both the numerator and the denominator, which cancels out, leaving the circumference.

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Mathematics, 31.07.2019 23:00, dogerboy8380

The formula for the area, a, of a circle is a = πr2 , where r is the circle’s radius, and the formula for the circumference, c, of a circle is c = πd , where d is the circle’s diameter. which statement is correct?

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Mathematics, 15.10.2019 13:10, michibabiee

How is the area of a semicircle found? a.take half the area of the whole circle. b.use the area formula with r/2. c.take half of the circumference. d.divide the area of the whole circle by 4.

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