Use a calculator to approximate the expression. Write your answer in scientific notation, and round to the nearest tenth as needed.
A. 7.2 × 108
B. 6.8 × 106
C. 7.6 × 108
D. 7.2 × 106
Answer: A
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?Find the number of vertices of a prism with an n-dimensional base.
A. ?n B. ?2n C. ?n + 4 D. ?n2 E. ?3n
Find the center, foci, and vertices of the ellipse.36(x + 3)2 + 25(y + 1)2 = 900
A. center at (-1, -3)
foci at (-1, -3 - 
), (-1, -3 + 
)
vertices at (-1, 5), (-1, -7)
B. center at (3, -1)
foci at (3, -1 - 
), (3, -1 + 
)
vertices at (3, 5), (3, -7)
C. center at (-3, -1)
foci at (-3, -1 - 
), (-3, -1 + 
)
vertices at (-3, 5), (-3, -7)
D. center at (-2, -1)
foci at (-2, -1 - 
), (-2, -1 + 
)
vertices at (-2, 5), (-2, -7)
Solve the combined inequality. Write the solution in interval notation.2 < 1 - 4x ? 12
A. 
, 
B. 
, 
C. 
, 
D. 
, 
Solve using the addition principle and/or the multiplication principle.-8 + 2p = -10
A. 1
B. - 
C. - 9
D. - 1