Simplify the power of i.
A. -1
B. -i
C. 1
D. i
Answer: B
Mathematics
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Divide and reduce to lowest terms.
÷ 
A. 
B. 
C. z - 9
D. 
Mathematics
Solve.A science student watching a group of ants moving along a straight line determines that their position x along the line as a function of time t is given by 
Give an equivalent expression for x(t) by factoring out a common factor.
A. t(t2 + 2t + 30) B. t(t2 + 2t - 30) C. t(t3 + 2t2 + 30t) D. t(t3 + 2t2 - 15t + 45)
Mathematics
Find a unit vector in the direction of the given vector.
?
?
A. j B. i C. -j D. -i E. ?i - j
Mathematics
Solve the problem.A tree 7 feet high grows at the rate of 2 feet each year. How many years will it take for the tree to grow to a height of 13 feet?
A. 8 years B. 13 years C. 3 years D. 4 years
Mathematics