Graph the piecewise-defined function.f(x) = 
A. 
B. 
C. 
D. 
Answer: D
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Use the Negative Exponent Rules to simplify. Write the answer with positive exponents. All variables are nonzero.
-2
A. 
y4
B. 
C. 
y4
D. - 
y4
Solve the problem.Assuming two parents, four grandparents, etc., what is the total number of ancestors a person has going back 8 generations?
A. 128 B. 510 C. 256 D. 254
Solve the problem.The manager of a coffee shop has one type of coffee that sells for $8 per pound and another type that sells for $15 per pound. The manager wishes to mix 60 pounds of the $15 coffee to get a mixture that will sell for $11 per pound. How many pounds of the $8 coffee should be used?
A. 70 lb B. 140 lb C. 80 lb D. 40 lb
Change the logarithmic expression to an equivalent expression involving an exponent.log1/5125 = -3
A. (-3)1/5 = 125
B. 
-3 = 125
C. 
3 = 125
D. 1251/5 = 3