Add or subtract. Simplify by collecting like radical terms, if possible.
- 7
- 4
A. -11
B. -28
C. -28
D. -11
Answer: C
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Perform the indicated operation by changing to scientific notation first. Express the solution in decimal notation.
A. 90 B. 9 C. 0.9 D. 0.09
Construct the requested tree diagram.Construct a tree diagram that shows all possible 2-letter code words using only the letters c and d without repetition.
A.
| /\ |
| c | d |
| /| | | |
| c | d | c |
B.
| | |
| c |
| | |
| d |
C.
| /\ |
| c | d |
| /\ | /\ |
| c | d | c | d |
D.
| /\ |
| c | d |
| | | | |
| d | c |
Answer the question.True or False? In quadrant II, the y-coordinate of a point is always negative.
A. False B. True
An investor purchased a piece of waterfront property. Because of the development of a marina in the vicinity, the market value of the property is expected to increase according to the rule 
where V(t) is measured in dollars and t is the time in years from the present. If the inflation rate is expected to be 10% compounded continuously for the next 8 years, what is P(t) expected to be in 4 years? Round your answer to the nearest dollar.
?
A. $136,669 B. $136,649 C. $136,679 D. $136,659 E. $136,639