Find the angle, in radians, in the figure below if S = 15 and r = 4.
A. 
B. ?
C. ?
D. ?
E. ?
Answer: A
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Find the standard-form equation of the hyperbola centered at the origin which satisfies the given conditions.Vertices at (0, 2) and (0, -2); foci at (0, 3) and (0, -3)
A. 
- 
= 1
B. 
- 
= 1
C. 
- 
= 1
D. 
- 
= 1
Find all values of x satisfying the given conditions.y1 = 8x + 4(4 + x), y2 = 3(x - 6) + 10x, and y1 = y2
A. {-34} B. {10} C. {-10} D. {34}
Solve the problem.Linda invests $25,000 for one year. Part is invested at 5%, another part at 6%, and the rest at 8%. The total income from all 3 investments is $1600. The income from the 5% and 6% investments is the same as the income from the 8% investment. Find the amount invested at each rate.
A. $8000 at 5%, $10,000 at 6%, $7000 at 8% B. $10,000 at 5%, $5000 at 6%, $10,000 at 8% C. $10,000 at 5%, $10,000 at 6%, $5000 at 8% D. $5000 at 5%, $10,000 at 6%, $10,000 at 8%
Determine whether the given equation is linear.y = 5x + 2
A. Linear B. Not Linear