Solve the problem. Use ? ? 3.14 when necessary.Find the volume of a rectangular pyramid with base 15 m2 and height 9 m. Find the result to the nearest unit.

A. 68 m3
B. 45 m3
C. 135 m3
D. 43 m3


Answer: B

Mathematics

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Write the function without radicals by using fractional exponents.y =  + 

A. y = (2x)2/3 + (8x)3/2 B. y = (10x)13/6 C. y = (2x)2/3 + (8x)3 D. y = (2x)3/2 + (8x)2/3

Mathematics

Find all the terms of the finite sequence.an = 4n, 1 ? n ? 5

A. 16, 64, 256, 1024, 4096 B. 1, 16, 81, 256, 625 C. 4, 16, 64, 256, 1024 D. 1, 4, 16, 64, 256

Mathematics

Graph the system of inequalities, and find the coordinates of the vertices.y ? 3x - 1,y ? -3x - 1,x ? 3

A.

B.

C.

D.

Mathematics

Find the surface area or volume.The region between the curve y = , -0.5 ? x ? 1.2, and the x-axis is revolved about the x-axis to generate a solid. Use a table of integrals to find the volume of the solid generated to two decimal places.

A. 2.95 B. 3.76 C. 3.48 D. 3.10

Mathematics