Use the given values of the variables to find the value of the expression.
for x = -3, y = -5
A. 
B. - 
C. - 
D. - 
Answer: D
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Use the rules for exponents to rewrite the expression and then evaluate the new expression. 
A. 0 B. -12 C. 1 D. -4
Solve the problem.Which of the following is not required in a double-blind placebo experiment?
A. Neither the members of the control group nor the members of the treatment group know to which of the two groups they belong. B. There is a control group and a treatment group. C. The scientists conducting the study do not know which individuals are in the treatment group and which are in the control group. D. The size of the control group and treatment group are the same. E. none of these
Solve the given application problem.Normal body temperature is 98.6°F. Ellen's temperature is 
How many degrees above normal body temperature is this?
A. 2.3° B. 3.3° C. 3.4° D. 2.4°
Solve.In a lottery game run by a certain state, for every game ticket purchased, a player can pick any 4 numbers from 1 through 44. If the numbers match those drawn by the state, the player wins. If Martin buys 3 tickets, what is his probability of winning?
A. 
B. 
C. 
D. 