Solve the initial value problem.? + y = cos ?; ? > 0, y(?) = 1

A. y = , ? > 0
B. y = , ? > 0
C. y = , ? > 0
D. y = , ? > 0


Answer: D

Mathematics

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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

Mathematics

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

Mathematics

Evaluate using the order of operations.21 ÷ 7(3) + (-9)

A. 1
B. 40
C. 0
D. -8

Mathematics

Does the system have a unique solution, no solution, or many solutions?

A. No solution B. A unique solution C. Many solutions

Mathematics