Multiply.(5 - 3
)2
A. 25 + 9
B. 70 - 30
C. 70 + 30
D. 25 - 9
Answer: B
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Simplify the radical expression. Assume all variables represent positive real numbers.
A. 32 B. 100 C. ±10 D. 10
Add or subtract as indicated.(9a5 - 3a3) + (7a5 - 7a3)
A. 16a5 - 10a3 B. 16a10 - 10a6 C. 6a16 D. 6a8
Suppose that the number of units of a good produced z is given by 
, where x is the number of machines working properly and y is the average number of work hours per machine. Find the production for a week in which 9 machines are working properly and the average number of work hours per machine is 35. Round your answer to the nearest whole number.
?
A. 11,025 units B. 4,410 units C. 126 units D. 1,134 units E. 17,150 units
Expand the notation and find its value.92
A. 9 + 9 = 18 B. 9 + 9 = 100 C. 9 ? 9 = 512 D. 9 ? 9 = 81