Perform the indicated operation. Assume that all variables are nonnegative.
(6
- 7
)
A. 25
B. 25
C. 5
D. 60
- 7
Answer: A
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Provide an appropriate response.A baseball is hit when it is 2.7 feet above the ground. It leaves the bat with an initial speed of 151 ft/sec, making an angle of 22° with the horizontal. Assuming a drag coefficient 
how high does the ball go, and when does it reach maximum height? For projectiles with linear drag: x = x0 + 
(1 - e-kt) cos ?, y = y0 + 
(1 - e-kt) sin ? + 
style="vertical-align: -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. Maximum height = 8.27 feet; time to maximum height = 0.74 sec B. Maximum height = 3.03 feet; time to maximum height = 0.06 sec C. Maximum height = -0.23 feet; time to maximum height = -0.21 sec D. Maximum height = 3.07 feet; time to maximum height = 0.02 sec
Find the exact value under the given conditions.sin ? = 
, 0 < ? < 
; cos ? = 
, 0 < ? < 
Find cos (? + ?).
A. 
B. 
C. 
D. 
Solve for the unknown in the equation.
= 3
A. R = 17 B. R = 18 C. R = 45 D. R = 12
Let U = {all soda pops}; A = {all diet soda pops}; 
and 
Describe the given set in words.(C ? B)'
A. All soda pops that are neither cola nor in cans B. All cola soda pops in cans C. All soda pops that are not cola soda pops in cans D. All soda pops that are not diet-cola soda pops in cans