Graph the numbers on a number line.-11, -9, -7, -5
A.
B.
C.
D.
Answer: D
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Provide an appropriate response.A baseball is hit when it is 2.9 feet above the ground. It leaves the bat with an initial speed of 150 ft/sec, making an angle of 22° with the horizontal. Assuming a drag coefficient find the range and the flight time of the ball. For projectiles with linear drag: x = x0 +
(1 - e-kt)cos ?, y = y0 +
(1 - e-kt)sin ? +
-21.0px;" />(1 - kt - e-kt)where k is the drag coefficient, v0 and ? are the projectile's initial speed and launch angle, and g is the acceleration of gravity (32 ft/sec2).
A. Flight time = 3.47 sec; range = 395.3 feet
B. Flight time = 3.7 sec; range = 406.2 feet
C. Flight time = 3.35 sec; range = 384.0 feet
D. Flight time = 2.55 sec; range = 375.3 feet
Solve the problem.If y varies directly as x and inversely as the square root of w, and y = 63 when and
find y when
and
A. y =
B. y = 70
C. y =
D. y = 14
Perform the indicated operations. Write the resulting polynomial in standard form.(-3x + 2y)(2x - 4y)
A. -6x2 + 16xy + 16y2 B. -6x2 + 12xy - 8y2 C. -6x2 + 16xy - 8y2 D. -6x2 + 4xy - 8y2
Find an equation for the indicated ellipse.Foci (0, ±2) and vertices (0, ±4)
A. +
= 1
B. +
= 1
C. +
= 1
D. +
= 1