Find the sum or difference, and write in lowest terms, if necessary.
- 
A. 
B. 
C. 
D. 
Answer: A
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Write the number in scientific notation. ? One micron (millionth of a meter): 0.00001937 inch. ?
A. 1.937 × 102 in B. 0.00001937 × 104 in C. 1.937 × 10-5 in D. 1.937 × 103 in E. 1.937 × 10-4 in
Find the surface area of the circular solid. Unless otherwise specified, use 3.14 for ? and round your answer to the nearest tenth.A right circular cylinder with r = 9 in, h = 8 ft (Give results in square feet.)
A. 20.6 ft2 B. 960.8 ft2 C. 41.2 ft2 D. 14.1 ft2
Find the coordinates of the vertices and foci of the ellipse.x2 + 2y2 = 100
A. V(-10, 0), V(10, 0), F
, F
B. V(-10, 0), V(10, 0), F
, F
C. V(-100, 0), V(100, 0), F(0, -50), F(0, 50)
D. V
, V
, F
, F
Provide an appropriate response.The solution of 
? 0 is
A. x ? -3, x > 
.
B. -3 < x ? 
.
C. -3 ? x ? 
.
D. x ? -3, x ? 
.
E. x < -3, x ? 
.