Solve the problem.Frank can type a report in 4 hours. James takes 8 hours to type it. How long will it take the two of them typing together?
A. 8 hr
B. 
hr
C. 
hr
D. 
hr
Answer: D
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Find the standard-form equation of the hyperbola centered at the origin which satisfies the given conditions. Foci at (
, 0), (-
, 0); asymptotes y = 4x, y = -4x
A. 
- y2 = 1
B. y2 - 
= 1
C. 
- x2 = 1
D. x2 - 
= 1
Graph the inverse of the function plotted, on the same set of axes. Use a dashed curve for the inverse.
A. 
B. 
C. 
D. 
Find the solution or solutions, if any exist, to the system.
A. infinitely many solutions of the form x = 
- 
z, y = - 
+ 
z, z = z
B. infinitely many solutions of the form x = 
+ 
z, y = - 
+ 
z, z = z
C. infinitely many solutions of the form x = 
+ 
z, y = 
+ 
z, z = z
D. infinitely many solutions of the form x = 
- 
z, y = 
+ 
z, z = z
Solve the problem.A restaurant serves 8 ounces of soup to each customer. How many quarts of soup should be prepared in order to serve 153 customers?
A. 76
qt
B. 38
qt
C. 40
qt
D. 39
qt