Write the expression in exponential form. Assume that all variables represent positive real numbers. 
A. (x12y8)5
B. (x12y8)1/5
C. (6x12y8)1/5
D. (6x12y8)5
Answer: C
Mathematics
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Simplify the expression. Assume that all variables are positive when they appear.( + 3)(
- 3)
A. 1
B. 10 - 2
C. 19
D. 7
Mathematics
Solve the problem.The voltage E in an electrical circuit is given by E = 5.7 cos 110?t, where t is time measured in seconds. Find the amplitude.
A. 5.7 B. 110? C. 11.4 D. 110
Mathematics
Solve the compound inequality.6x + 9 < 4 and 3x - 4 > 9
A. - < x <
B. No solution
C. - < x <
D. x < - or x >
Mathematics
Find the surface area of the figure. Use 3.14 for ?. Round your answer to hundredths.
A. 290.45 sq. m B. 251.2 sq. m C. 125.6 sq. m D. 314 sq. m
Mathematics