Make the indicated conversion between American and metric units of weight and mass using the given property or properties. Round the answer to two decimal places if necessary.45 kilograms to pounds (1 kg ? 2.20 lb)
A. 99 lb
B. 114.3 lb
C. 47.7 lb
D. 20.25 lb
Answer: A
Mathematics
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Use De Moivre's theorem to simplify the expression. Write the answer in the form a + bi.
4
A. 
+ 
i
B. 
+ 
i
C. 81i
D. 
+ 
i
Mathematics
Solve the problem.For what values of m does the function y = aemx satisfy the equation y" - 81y = 0?
A. m = -9 B. m = 9 C. m = -9, 9 D. m = -1, 81
Mathematics
Write the set in set builder notation.{21, 28, 35, 42, . . . , 91}
A. {x ? N? x = 7n for n ? N and 21 < x < 91} B. {x ? N? x = 7n for n ? N and x ? 21} C. {x ? N? x = 7n for n ? N and 14 < x < 98} D. {x? x = 7n for n ? N}
Mathematics
Factor.t(4 - m) + s(4 - m)
A. t(4 - m) + s B. (t - s)(4 - m) C. (t + s)(4 - m) D. No common factor
Mathematics