Graph the function by starting with the graph of the basic function and then using the techniques of shifting, compressing, stretching, and/or reflecting.f(x) = |x + 4|
A. 
B. 
C. 
D. 
Answer: D
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Solve the problem.Use the formula N = Iekt, where N is the number of items in terms of the initial population I, at time t, and k is the growth constant equal to the percent of growth per unit of time. A certain radioactive isotope has a half-life of approximately 1500 years. How many years would be required for a given amount of this isotope to decay to 25% of that amount?
A. 3000 years B. 2975 years C. 623 years D. 1125 years
Solve the problem.An economist predicts that the buying power B(x) of a dollar x years from now will decrease according to the formula B(x) = 0.61x. How much will today's dollar be worth in 7 years? Round the answer to the nearest cent.
A. $0.71 B. $3.28 C. $4.27 D. $0.03
Express the percent as a fraction or mixed number in simplest form.0.5%
A. 
B. 
C. 
D. 
Add or subtract by first simplifying each radical and then combining any like radicals. Assume that all variables represent positive numbers.
+ 4
+ 10
A. -43
B. 43
C. -48
D. -19