Solve the problem.The area of a rectangular piece of cardboard shown is 860 square inches. The cardboard is used to make an open box by cutting a 4-inch square from each corner and turning up the sides. If the box is to have a volume of 1680 cubic inches, find the dimensions of the cardboard that must be used.
A. 12 inches by 31 inches
B. 20 inches by 43 inches
C. 16 inches by 39 inches
D. 24 inches by 47 inches
Answer: B
Mathematics
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Simplify the expression.
?
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Write the answer without using negative exponents. Assume that the variable is restricted to those numbers for which the expression is defined
What will be an ideal response?
Mathematics
Add or subtract as indicated.
A. 25.29 B. 24.19 C. 25.19 D. 24.29
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Express in terms of i.
A. 6i
B. ±6
C. i
D. -6i
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Find the unit rate.10 cents for 2 marbles
A. 20 cents/marble B. 0.2 cents/marble C. 5 cents/marble D. 12 marbles
Mathematics