Translate the sentence into a mathematical equation. Be sure to identify the meaning of all symbols.Speed is measured by distance divided by time.
A. If S represents speed, d distance, and t time, then d = 
.
B. If S represents speed, d distance, and t time, then S = 
.
C. If S represents speed, d distance, and t time, then t = 
.
D. If S represents speed, d distance, and t time, then S = 
.
Answer: B
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Find the vertices and foci of the ellipse.9x2 + 64y2 = 576
A. Vertices: (±3, 0); Foci: (±
, 0)
B. Vertices: (±8, 0); Foci: (±
, 0)
C. Vertices: (0, ±8); Foci (0, ±
)
D. Vertices: (0, ±3); Foci (0, ±
)
Solve and graph. Write the solution set in set-builder and interval notation.6z - 12 ? 5z - 6
A. {z| z ? 6}; [6, ?)
B. {z| z < 6}; (-?, 6)
C. {z| z > 6}; (6, ?)
D. {z| z ? 6}; (-?, 6]
Round the number to the nearest ten, nearest hundred, and nearest thousand.3257
A.
| Ten | 3250 |
| Hundred | 3200 |
| Thousand | 4000 |
B.
| Ten | 3000 |
| Hundred | 3300 |
| Thousand | 3000 |
C.
| Ten | 3260 |
| Hundred | 3200 |
| Thousand | 3000 |
D.
| Ten | 3260 |
| Hundred | 3300 |
| Thousand | 3000 |
Find a rectangular equation for the curve and describe the curve.x = t - 3, y = t2 + 5; -1 ? t ? 2
A. y = x2 - 14; portion of a parabola B. y = x2 - 6x - 14; portion of a parabola C. y = x2 + 6x + 14; portion of a parabola D. y = x2 + 14; portion of a parabola