D MathXL for School: Practice & Problem Solving
40 m
Frank needs to find the area enclosed by the figure. The figure is made by
attaching semicircles to each side of a 40-m-by-40-m square. Frank says the area
is 912.00 m2. Find the area enclosed by the figure. Use 3.14 for it. What error
"might Frank have made?
40 m
The area enclosed by the figure is m2
(Round to the nearest hundredth as needed.)
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In the triangles, bc =de and ac fe.if the mzc is greater than the mze, then ab isdfelth

Martha has a deck of cards. she has lost some of the cards, and now the deck only contains nine spades, eleven diamonds, eight clubs, and twelve hearts. martha predicts that whenever she draws a card from the deck without looking, she will draw a club one-fifth of the time. which activity would best allow martha to test her prediction? a. randomly draw a card from the box and see if it is a club. b. randomly draw a card. then, continue to draw another card until all eight clubs are drawn. c. randomly draw and replace a card 120 times. then, observe how close to 30 times a club is drawn. d. randomly draw and replace a card 100 times. then, observe how close to 20 times a club is drawn.

If a is a nonzero real number then the reciprocal of a is