Mathematics

Mathematics, 26.06.2019 00:00, jonathanjenkins701

What is the approximate area of the circle with a radius of 15 ft?

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Mathematics, 19.07.2019 03:30, matthew6889

Answer asap i will give brainiest ( must have answers and explanation to the answers) at a zoo, the lion pen has a ring-shaped sidewalk around it. the outer edge of the sidewalk is a circle with a radius of 11 m. the inner edge of the sidewalk is a circle with a radius of 9 m. (a) find the exact area of the larger circle (b) find the exact area of the smaller circle. (c) write an expression to find the exact area of the sidewalk (shaded portion). (d) find the approximate area of the sidewalk. use 3.14 to approximate π.

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Mathematics, 04.08.2019 16:30, ava108

The circumference of a circular tabletop is 72ππ inches. what is the area, in square inches, of the tabletop? 36ππ 144ππ 1296ππ 5185ππ 2. the circumference of a circle is 32ππ. what is the radius of this circle? 8 16 32 64 3. the radius of circle p is 24 centimeters. the radius of circle q is 8 centimeters. which statement correctly compares the area of circle p with the area of circle q? the area of circle p is 3 times the area of circle q. the area of circle p is 6 times the area of circle q. the area of circle p is 9 times the area of circle q. the area of circle p is 12 times the area of circle q. 4. use the circle below to answer this question. point p is at the center of the circle. what is the length of the circumference of the circle, rounded to the nearest tenth of a centimeter? 14.1 centimeters 28.3 centimeters 63.6 centimeters 127.2 centimeters 5. the circumference of a circle is 32ππ. what is the diameter of this circle? 8 16 32 64 description submittoggle dropdown

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Mathematics, 15.10.2019 00:30, Auriieee

The formula a=3r^2 gives the approximate area, a of a circle with radius, r. find the radius of a circle with an approximate area of 48 square units.

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Mathematics, 29.10.2019 06:31, lilianna25

The area and circumference of a circle of radius r are given by a(r) = πr2 and c(r) = 2πr. suppose we increase the radius of a sphere by 0.001 units from r to r + 0.001. a. use the binomial theorem to write an expression for the increase in area volume a(r + 0.001) − a(r) as a sum of three terms. b. write an expression for the average rate of change of the area as the radius increases from r to r + 0.001. c. simplify the expression in part (b) to compute the average rate of change of the area of a circle as the radius increases from r to r + 0.001. d. what does the expression from part (c) resemble? e. why does it make sense that the average rate of change should approximate the area of a circle? think about the geometric figure formed by a(r + 0.001) − a(r). what does this represent? f. how could we approximate the area of the shell using circumference? and the average rate of change for the area? g. find the difference between the average rate of change of the area and c(r) when r = 1.

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