He estimates that the angle of elevation from his line of sight to the top of streetlamp is 20 degrees. The streetlamp is about _____ feet tall. (Round to nearest foot). *WIll Award Best Answer To Correct Answer*
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Un helicoptero se mantiene sobrevolando a una distancia constante de 12 km de una montaña esperando a rescatar a una persona conciderando la cima como el centro
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A father watched his son fly a kite, but the kite suddenly got stuck in a tree. The father was 20 feet away from the tree when the boy started to climb it. The angle of elevation from the father to the son is changing at a constant 0.46 rads/min. Find the rate at which the boy is climbing when the angle of elevation is 0.75 rads.
37 mins ago
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Calculus The Easy Way
Chapter 5
Exercise #17
A pendulum consists of a mass held up by a string. Let x represent the angle that the string makes with the vertical. At time t, the value of x is A sin(ωt+h). (A, h, and ω are constants.) Find dA/dt. When is dA/dt the greatest?
I'm confused with the answers.
1 hour ago
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A sushi restaurant has prepared 18 portions of seafood, three of which had been left out too long and spoiled. If 11 of the 18 portions are served randomly to customers, what is the probability that at least one customer will receive spoiled food? (Hint: Consider the complement of this event.)
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A particle is moving along a straight line. You measure its position at every time, t, but you
want to know its velocity and acceleration as a function of time. Ordinarily you would just
differentiate the position dr(t)/dt −→ v(t), but you don’t have an expression for r(t) just a
discrete list of values.
2 hours ago
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