Graph the ellipse. +  = 1

A.

B.

C.

D.


Answer: D

Mathematics

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Find the volume of the described solid.The base of a solid is the region between the curve y = 3cos x and the x-axis from x = 0 to x = ?/2. The cross sections perpendicular to the x-axis are isosceles right triangles with one leg on the base of the solid.

A. ?
B. 2?
C. ?
D. ?

Mathematics

Find the volume of the indicated region.the region in the first octant bounded by the coordinate planes and the surface 

A.
B. 8192
C.
D.

Mathematics

If ?MAT is isosceles and AM ? TM , the vertex angle is _______________.

Fill in the blank(s) with the appropriate word(s).

Mathematics

Multiply.(5 x7)(-2x)(3x3)

A. 30x9 B. -30x11 C. -30x10 D. -30x22

Mathematics