Solve for the given letter.I = prt for r

A. r = P - tI
B. r = 
C. r = 
D. r = 


Answer: D

Mathematics

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Find the volume of the solid generated by revolving the region about the y-axis.The region in the first quadrant bounded on the left by the circle x2 + y2 = 16, on the right by the line , and above by the line y = 4

A. 64?
B. 16?
C. ?
D. ?

Mathematics

Find the domain and range and describe the level curves for the function f(x,y).f(x, y) = 9x2 - 5y2

A. Domain: all points in the xy-plane; range: real numbers z ? 0; level curves: ellipses 
B. Domain: all points in the xy-plane; range: all real numbers; level curves: hyperbolas 
C. Domain: all points in the first quadrant of the xy-plane; range: all real numbers; level curves: hyperbolas 
D. Domain: all points in the xy-plane; range: all real numbers; level curves: ellipses  

Mathematics

Use a calculator to evaluate.1,8932

A. 1,895 B. 7,572 C. 3,786 D. 3,583,449

Mathematics

Subtract.28 - (-59)

A. 87 B. -87 C. 31 D. -31

Mathematics