Rationalize the denominator and simplify.

A.
B.
C.
D.


Answer: D

Mathematics

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Find the area of the region specified in polar coordinates.the region inside  and outside 

A. 9
B. 9
C. 9
D. 9

Mathematics

Rotate the axes so that the new equation contains no xy-term. Discuss the new equation.xy +16 = 0

A. ? = 45°
 +  = 1
ellipse
center at (0, 0)
major axis is y'-axis
vertices at (0, ±4)
B. ? = 36.9°
 +  = 1
ellipse
center at (0, 0)
major axis is the x'-axis
vertices at (±2, 0)
C. ? = 45°
y'2 = -32x'
parabola
vertex at (0, 0)
focus at (-8, 0)
D. ? = 45°
 -  = 1
hyperbola
center at (0, 0)
transverse axis is y'-axis
vertices at (0, ±4)

Mathematics

Solve the absolute value equation.|2x + 4| + 7 = 5

A.
B.
C.
D. ?

Mathematics

Find the indicated quantity.a8, when a1 = -6 and d = 4

A. 22 B. -38 C. -34 D. 26

Mathematics