Solve the problem.The two equal sides of an isosceles triangle measure three feet. Let the angle between the sides measure ?. Find the area A of the triangle as a function of 
. The answer may include more than one trigonometric function.
What will be an ideal response?
A = 9 sin 
cos 
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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 2.1 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 -13.3i (ft/sec) to the ball's initial velocity. How high does the baseball go? Round your answer to the nearest tenth.
A. 43.0 ft B. 47.1 ft C. 52.4 ft D. 45.1 ft
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Solve the problem.Elizabeth measured the height of her tomato plant at 28.92 cm. Two weeks later she measured it again and found that it was 31 cm. How much did the plant grow during the two weeks?
A. 59.92 cm B. 2.08 cm C. 2.18 cm D. 3.08 cm
Solve the problem.A simple exercise machine can be constructed by mounting a stiff spring securely to a wall and attaching a "T" handle to the free end of the spring. The arms can be exercised simply by pulling the "T" handle towards the torso. For a particular spring, the stretch distance is related to the work exerted by the equationx = 
,
where W is the work exerted in joules and x is the stretch distance in cm. How far will you stretch the spring if you exert 673 joules of work? Round your answer to three decimal places.
A. 0.126 cm B. 0.089 cm C. 0.134 cm D. 0.016 cm