Simplify.i4
A. 1
B. i
C. -i
D. -1
Answer: A
Mathematics
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Multiply to obtain an equivalent expression. Do not simplify.
? 
A. x + 81
B. 
C. 
D. 
Mathematics
Find the LCM.5xy6, 10x9y8, and 25x7y12
A. 50x9y12 B. 50xy C. 50x9y8 D. 50x9y6
Mathematics
Rationalize the denominator and simplify.
A. 2
B. 
C. 
D. 291
Mathematics
Solve the problem.A square has an area of 49 square inches. If the same amount is added to the length and removed from the width, the resulting rectangle has an area of 45 square inches. Find the dimensions of the rectangle.
A. 4 in. by 9 in. B. 5 in. by 9 in. C. 3 in. by 4 in. D. 5 in. by 10 in.
Mathematics