Solve the initial value problem.?
+ y = cos ?; ? > 0, y(?) = 1
A. y = 
, ? > 0
B. y = 
, ? > 0
C. y = 
, ? > 0
D. y = 
, ? > 0
Answer: D
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Find a parametrization for the line segment beginning at P1 and ending at P2.P1(-2, 7, -3) and P2(0, 7, 6)
A. x = -2t, y = 7, z = -9t + 6, 0 ? t ? 1 B. x = 2t - 2, y = 7t, z = 9t - 3, 0 ? t ? 1 C. x = 2t - 2, y = 7, z = 9t - 3, 0 ? t ? 1 D. x = -2t, y = 7t, z = -9t + 6, 0 ? t ? 1
Find the standard-form equation for a hyperbola which satisfies the given conditions.A hyperbola centered at the origin having focus (0, - 2
) and corresponding directrix 
A. 
- 
= 1
B. 
- 
= 1
C. 
- 
= 1
D. 
- 
= 1
Evaluate using the order of operations.21 ÷ 7(3) + (-9)
A. 1
B. 40
C. 0
D. -8
Does the system have a unique solution, no solution, or many solutions?
A. No solution B. A unique solution C. Many solutions