Write as a proportion.22.5 is to 30 as 4.5 is to 6.
A. 
= 
B. 
= 
C. 
= 
D. 
= 
Answer: D
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Simplify. If the answer is not a real number, state so. Assume all variables represent non-negative real numbers.
A. 0.36 B. 0.03 C. 0.02 D. 0.6
Solve. Express the result in scientific notation. If necessary, round the decimal factor to two decimal places.Approximately 9 × 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?
A. $2.7 × 109 B. $2.7 × 108 C. $27 × 109 D. $27 × 108
Find a bound on the error in approximating the integral 
using (a) the Trapezoidal Rule and (b) Simpson’s Rule with n=10 subintervals.
What will be an ideal response?
Find the exact value.Given that cos ? = - 
with ? in quadrant II, find tan 2?.
A. 
B. 
C. 
D. 