Find the standard form of the equation of the parabola using the information given.Vertex: (3, -7); Focus: (3, -6)
A. (y - 7)2 = -12(x + 3)
B. (x - 3)2 = 4(y + 7)
C. (x - 3)2 = -4(y + 7)
D. (y - 7)2 = 12(x + 3)
Answer: B
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Find ?f.f(x, y, z) = 
A. F = 
i + 2yj + 2zk
B. F = 
i + 
j + 
k
C. F = 
(x2 + y2 + z2)i + 
j + 
k
D. F = 
i + 
j + 
k
Identify the polynomial as a monomial, binomial, or trinomial. Give the degree of the polynomial.11y3 + 9y2 - 1
A. Trinomial, degree 6 B. Binomial, degree 3 C. Trinomial, degree 3 D. Trinomial, degree 5
Provide an appropriate response. Factor completely: 4x2 - 81y2
A. (4x + 9y)(4x - 9y) B. (2x - 9y)2 C. 4(x + 9y)(x - 9y) D. (2x + 9y)(2x - 9y)
Solve the problem.Suppose a projectile is launched from the origin into the first quadrant with an initial velocity v0 feet per second at an angle ? with the horizontal. If the only force acting on the projectile is the force of gravity (with acceleration, 
then the time of flight, t, is given by 
A golf ball is hit with an initial velocity of 49 ft/sec with an angle 
Find the time of flight, t. Round to the nearest hundredth of a second
when necessary. A. 2.55 sec B. 1.29 sec C. 3.07 sec D. 2.78 sec