Solve the equation.4(x + 5) - (4x + 20) = 0
A. no solution
B. x = 5
C. all real numbers
D. x = 0
Answer: C
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Rewrite each number using scientific notation before performing the operation. Leave your answer in scientific notation form.
-5
A. 2.00 × 10-21 B. 3.13 × 10-18 C. 3.13 × 1078 D. 2.00 × 1011
Find the first three nonzero terms of the Taylor expansion for the given function and value of a.cot x 
A. - 
- 
3 - 
5 - ...
B. 
- 
2 + 
3 - ...
C. 
- 
2 - 
3 - ...
D. 
+ 
3 + 
5 + ...
Use the figure to answer the question.The sales figures for the Big "D" Company are shown below in a line graph.Big "D" Sales 
MonthWhat were the total sales for the first 6 months of 2011?
A. $366,000 B. $290,000 C. $46,000 D. $240,000
It can be shown that (1+ x)n = 1 + nx + 
x2 + 
x3 . . . is true for any real number n (not just positive integer values) and any real number x, where |x| < 1. Use this series to approximate the given number to the nearest thousandth.(1.03)-5
A. 0.863 B. 1.159 C. 0.867 D. 1.154