Solve the equation.
z - 6z + 
= 
A. - 
B. - 2
C. - 
D. - 
Answer: D
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Rationalize the denominator and simplify. Assume that all variables represent positive real numbers.
A. 9
- 18
B. 9
- 2
C. 
D. 9
+ 18
Solve the problem.When an object is dropped to the ground from a height of h meters, the time it takes for the object to reach the ground is given by the equation t = 
, where t is measured in seconds. Solve the equation for h. Use the result to determine the height from which an object was dropped if it hits the ground after falling for 3 seconds.
A. h = 24.01t2; 216.1 m B. h = 4.9t2; 44.1 m C. h = 4.9t; 14.7 m D. h = 24.01t; 72 m
Answer the question.In how many ways can you answer the questions on an exam that consists of 6 true-false questions?
A. 0 B. 184 C. 64 D. 144
Find the expected value.A car agency has found daily demand to be as shown in the table.
Find the expected number of customers.
A. 9 B. 12 C. 10 D. 2