Estimate the sum or difference by first rounding each number to the nearest ten.581.13 - 62.6
A. 530
B. 520
C. 518.53
D. 580
Answer: B
Mathematics
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Write an equivalent double integral with the order of integration reversed.
A. 
B. 
C. 
D. 
Mathematics
Solve the problem.The area of a square is 81 square centimeters. If the same amount is added to one dimension and removed from the other, the resulting rectangle has an area 9 square centimeters less than the area of the square. How much is added and subtracted?
A. 12 cm B. 3 cm C. 4 cm D. 9 cm
Mathematics
Find an equation of the line passing through each pair of points. Write the equation in the form 
(-4, 7) and (1, 9)
A. 11x + 8y = -61 B. 2x - 5y = -43 C. -11x - 8y = -61 D. -2x - 5y = -43
Mathematics
Provide an appropriate response.Decide whether the statement is true or false by using the simplification procedures. 
= 6
A. True B. False
Mathematics