Simplify the expression using order of operations.4[-4 + 7(-5 + 4)]
A. -23
B. -44
C. -16
D. -12
Answer: B
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Solve the problem. Unless stated otherwise, assume that the projectile flight is ideal, that the launch angle is measured from the horizontal, and that the projectile is launched from the origin over a horizontal surfaceA baseball is hit when it is 2.2 ft above the ground. It leaves the bat with an initial velocity of at a launch angle of 22°. At the instant the ball is hit, an instantaneous gust of wind blows against the ball, adding a component of -12.8i (ft/sec) to the ball's initial velocity. Find a vector equation for the path of the baseball.
A. r = (152 sin 22° - 12.8)ti + (2.2 + (152 cos 22°)t - 16t2)j B. r = (152 cos 22° - 12.8)ti + (2.2 + (152 sin 22°)t - 16t2)j C. r = ((152 cos 22°)t - 12.8)i + (2.2 + (152 sin 22°)t - 16t2)j D. r = (152 cos 22° - 12.8)ti + (2.2 + (152 sin 22°)t + 16t2j
Find the area of the specified region.Shared by the circles r = 4 and r = 8 sin ?
A. (4? - 3
)
B. (2? + 3
)
C. 8?
D. ?
Provide an appropriate response.Graph the solution to 3x + 1 ? 13 or x - 2 ? 5.
A.
B.
C.
D.
Solve.A Ferris wheel has a radius r of 26.8 feet. The height of the tower t is 36.6 feet. The distance d from the origin to the base is 22.5 feet. Find the standard form equation of the circle represented by the Ferris wheel.
A. (x + 22.5)2 + (y + 36.6)2 = 718.24 B. (x - 22.5)2 + (y - 36.6)2 = 26.8 C. (x + 22.5)2 + (y + 36.6)2 = 26.8 D. (x - 22.5)2 + (y - 36.6)2 = 718.24