Solve the problem.The area of a circle of radius r is given by the polynomial ?r2, where ? is an irrational number. Use 3.14 as an approximation of ?, and find the area of a circle with radius 
A. 113.04 cm2
B. 18.84 cm2
C. 108 cm2
D. 37.68 cm2
Answer: A
Mathematics
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Evaluate the integral.
A. 1
B. 2 + 
C. 2 - 
D. 2
Mathematics
Solve.At $18.50 per gallon, what is the cost to paint a building that is 12 feet high, 61 feet long, and 32 feet wide if there are 220 square feet of windows? One gallon covers 190 square feet. Assume that you cannot buy a fraction of a gallon of paint.
Fill in the blank(s) with the appropriate word(s).
Mathematics
Write the expression in the standard form a + bi.-8i(-9 + 4i)
A. -32 + 72i B. 72i - 32i2 C. 32 + 72i D. 72i + 32i2
Mathematics
Find the net cost. Round to the nearest cent.$147.90 less 30/40
A. $44.37 B. $62.12 C. $110.93 D. $77.90
Mathematics