Find the vertices and foci of the given ellipse.3x2 + 5y2 = 15
A. Vertices: (
, 0) and (-
, 0);
Foci: (
, 0) and (-
, 0)
B. Vertices: (0, 
) and (0, -
);
Foci: (0, 
) and (0, -
)
C. Vertices: (5, 0) and (-5, 0);
Foci: (2, 0) and (-2, 0)
D. Vertices: (0, 
) and (0, -
);
Foci: (0, 
) and (0, -
)
Answer: A
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Use an alternative method to express the set.{21, 28, 35, ..., 105}
A. {x : x is a multiple of 7 greater than 21 and less than 105} B. {b : b is a multiple of 7 greater than or equal to 21} C. {w : w is a multiple of 7} D. {t : t is a multiple of 7 greater than 20 and less than 106}
Use the given transformation to evaluate the integral. src="https://sciemce.com/media/4/ppg__10615191636__f1q36g7.jpg" alt="" style="vertical-align: -4.0px;" /> 
Rwhere R is the parallelepiped bounded by the planes 
A. 64
B. 144
C. 32
D. 288
Solve the problem.Round 19,724 to the nearest hundred.
A. 19,710 B. 19,700 C. 19,600 D. 19,800
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A. 216 sq. ft B. 108 sq. ft C. 81 sq. ft D. 35 sq. ft