Add or subtract. Then simplify by collecting like radical terms, if possible. Assume that no radicands were formed by raising negative numbers to even powers.
+ 6
+ 7
A. 13
B. 13
C. 63
D. 63
Answer: C
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Solve the problem.Consider a retirement savings account where the monthly contribution is $100 for the first 15 years, is increased to $225 for the next 15 years, and then is increased once again to $325 for the last 10 years. The APR is always 5.4% compounded monthly. What is the value of the account at the end of 40 years? Round your answer to the nearest cent.
A. $257,880.02 B. $255,975.42 C. $266,356.93 D. $281,406.16 E. $264,452.33
Perform the indicated operation.9z - (16 - 3z)
A. 12z + 16 B. 12z - 16 C. 6z + 16 D. 6z - 16
A normal distribution has a mean of 60 and a standard deviation of 8. Find the fraction of scores that lie between 54 and 66.
What will be an ideal response?
Divide and simplify.
÷ 
A. 
B. (z + 5)(z + 8)
C. 
D. 