Solve the problem.A reservation clerk worked 15.75 hours one day. She spent twice as much time entering new reservations as she did verifying old ones and one and a half as much time calling to confirm reservations as verifying old ones. How much time did she spend entering new reservations?
A. 5.25 hours
B. 3.5 hours
C. 14 hours
D. 7 hours
Answer: D
Mathematics
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Graph the hyperbola.
- 
= 1
A. 
B. 
C. 
D. 
Mathematics
Find the direction angle of the vector v. Round to the nearest tenth if necessary. v = 5
i - 5j
A. 300° B. 330° C. 315° D. 150°
Mathematics
Select the graph of the equation as a circle, a parabola, an ellipse, or a hyperbola.
?
?
A. Hyperbola B. Circle C. Ellipse D. Parabola E. None of the above
Mathematics
Solve.Find the sum of all multiples of 7 that are between 63 and 189, inclusive.
A. 2394 B. 2205 C. 2142 D. 1197
Mathematics