Solve and check. Begin by using the addition or multiplication principles of equality to isolate the squared term. x2 - 225 = 0
A. 15
B. ±15
C. 113.5
D. ±14
Answer: B
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Determine whether the given set is finite or infinite. Consider the set N of positive integers to be the universal set, and let A = {n ? N| n > 50} B = {n ? N| n < 250} O = {n ? N| n is odd} E = {n ? N| n is even}A'
A. infinite B. finite
Solve the inequality and give the solution in interval notation.
? 
+ 
A. [14, ?) B. (14, ?) C. (-?, 14) D. (-?, 14]
Solve the problem.A painter needs to cover a triangular region 61 meters by 68 meters by 72 meters. A can of paint covers 70 square meters. How many cans will be needed?
A. 314 cans B. 3 cans C. 14 cans D. 28 cans
Information is given about a polynomial f(x) whose coefficients are real numbers. Find the remaining zeros of f.Degree 4; zeros: 7 - 5i, 9i
A. -7 - 5i, -9i B. -7 + 5i, -9i C. 7 + 5i, 9 - i D. 7 + 5i, -9i