Fill in the blank with one of the words or phrases listed below. Not all the choices will be used.
The expression 5
and 7
are examples of 
.
A. like radicals
B. principal square root
C. rationalizing the denominator
D. conjugate
Answer: A
Mathematics
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Solve.Approximately 5 × 103 employees of a certain company average $30,000 each year in salary. What is the total amount earned by all the employees of this company per year? Write your answer in scientific notation.
A. $15 × 109 B. $15 × 108 C. $1.5 × 108 D. $1.5 × 109
Mathematics
Find the reciprocal of the given number.- 
A. 
B. 7
C. - 
D. - 
Mathematics
Find the derivative.f(x) = 
A. 
x-4/5
B. 
x1/5
C. 
x1/4
D. 
x-1/5
Mathematics
Plot the point given in polar coordinates.
A. 
B. 
C. 
D. 
Mathematics