Simplify the exponential expression. Write any negative exponents as positive exponents. Assume all variables represent positive real numbers.x-2/5 ? x3/5
A. x1/5
B. x5/6
C. x-1/5
D. x6/5
Answer: A
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Write the equation of a sine function that has the given characteristics.The graph of y = 
, shifted 3 units downward
A. y = 
B. y = 
+ 3
C. y = 
D. y = 
- 3
Sketch the graph of the cross product of the unit vector 
.
?
A. ?
B. ?
?
C. ?
?
D. ?
?
E. ?
?
Solve. Round your answer to the nearest tenth, if necessary.An object is thrown upward from the top of a 
building with an initial velocity of 48 feet per second. The height, h, of the object after t seconds is given by the quadratic equation 
When will the object hit the ground?
A. In 5 seconds B. In 160 seconds C. In 2 seconds D. In 7 seconds
Solve the problem.In 1994, there were 642,000 males enrolled in college who were between the ages of 18 and 22, and over the next several years this number increased at a rate of 56.5 thousand per year. Using an appropriate linear equation as a model, estimate the number of males enrolled in college in the year 2002.
A. 1,102,000 B. 650,000 C. 1,094,000 D. 1,090,000