The public library has an approximate length of 1 x 10^5 millimeters and width of 8 x 10^4 millimeters. what is the area, in square milliters, of the public library?

a. 8 x 10^9 square millimeters

b. 9 x 10^9 square millimeters

c. 8 x 10^20 square millimeters

d. 9 x 10^20 square millimeters

Question

10 May, 14:41

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Answers (1)

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Bart · Answer 1

Area = length*width

... = (1*10^5 mm) * (8*10^4 mm)

... = (1*8) * 10^ (5+4) mm^2

... = 8*10^9 mm^2

Selection A is appropriate.

The public library has an approximate length of 1 x 10^5 millimeters and width of 8 x 10^4 millimeters. what is the area, in square milliters, of the public library?a. 8 x 10^9 square millimetersb. 9 x 10^9 square millimetersc. 8 x 10^20 square millimetersd. 9 x 10^20 square millimeters