Solve.The motion of a projectile that is fired at a 45° angle with the horizontal is given by x = v0
t,
for t in
Suppose a projectile is fired with an initial velocity of 200 feet per second at an angle of 45° with the horizontal. Find (a) the time when it strikes the ground and (b) the range (horizontal distance covered).
A. (a) 17.7 seconds
(b) 313 feet
B. (a) 4.4 seconds
(b) 313 feet
C. (a) 8.8 seconds
(b) 1250 feet
D. (a) 17.7 seconds
(b) 2500 feet
Answer: C
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Solve.A local pond can only hold up to 33 geese. Seven geese are introduced into the pond. Assume that the rate of growth of the population is = (0.0013)(33 - P)Pwhere t is time in weeks.Find a formula for the goose population in terms of t.
A. P(t) =
B. P(t) =
C. P(t) =
D. P(t) =
Solve the problem.The equation y = 0.002x - 0.20 can be used to determine the approximate profit, y in dollars, of producing x items. How many items must be produced so the profit will be at least $3933?
A. x ? 1,966,600 B. x ? 1,966,400 C. x ? 1,966,600 D. 0 < x ? 1,966,599
Solve the problem.Frank's Furniture employees earned $511.88, $185.62,
,
, and
last week. Find the average wage of the employees. Round your answer to the nearest cent.
A. $330.14 B. $396.17 C. $384.17 D. $495.21
Solve the equation. = -6
A.
B.
C.
D. ?