Solve.x2 + y2 = 113x + y = 15
A. (-8, 7), (-7, 8)
B. (8, 7), (7, 8)
C. (8, -7), (7, -8)
D. (-8, -7), (-7, -8)
Answer: B
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Evaluate the double integral over the given region.
R: 0 ? x ? 1, 0 ? y ? 1
A. 
(e5 - e3 - e2 + 1)
B. 
(e5 - e3 - e2 - 1)
C. 
(e5 - e3 - e2 - 1)
D. 
(e5 - e3 - e2 + 1)
Write in terms of the cofunction of a complementary angle.csc (90° - 19°)
A. sec 71° B. sin 19° C. sin 71° D. sec 19°
Simplify.
A. 
B. 
C. 
D. 
Solve.The pressure of a gas varies jointly as the amount of the gas (measured in moles) and the temperature and inversely as the volume of the gas. If the pressure is 
(kiloPascals) when the number of moles is 7, the temperature is 
, and the volume is 
, find the pressure when the number of moles is 8, the temperature is 
, and the volume
is 
.
A. 660
B. 750
C. 1680
D. 1500