Solve the problem.The volume V of a given mass of gas varies directly as the temperature T and inversely as the pressure P. If 
when 
and 
what is the volume when 
and 
A. 159.3 in3
B. 169.3 in3
C. 199.3 in3
D. 239.3 in3
Answer: C
Mathematics
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Use a graphing calculator to graph the polar equation. Make sure that you choose a sufficiently large interval for the parameter so that the entire curve is drawn.r = 1 + 4 cos(?/4)
A. 
B. 
C. 
D. 
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Solve the system by graphing on a calculator. Round to the nearest hundredth if necessary.y = log10(x + 8)y = x2
A. {(-1.38, 1.89), (1.50, 2.25)} B. {(-0.92, 0.85), (0.98, 0.95)} C. {(-0.92, -0.85), (0.98, -0.95)} D. {(-1.38, -1.89), (1.50, -2.25)}
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Solve the problem.At about what velocity do you enter the water if you jump from a 15 meter cliff? (Use 
A. -8.5 m/sec B. -17 m/sec C. 17 m/sec D. 2 m/sec
Mathematics
Add.
A. 17,470 B. 17,491 C. 16,491 D. 17,281
Mathematics