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A water trough is 10 meters long and the cross-sections have the shape of an isosceles trapezoid that is 30 cm wide at the bottom and 80 cm wide at the top with a height of 50 cm. If the trough is being filled with water at the rate of 0.2 cubic meters per minute, how fast is the water level rising when the water is 30 cm deep? Area of a trapezoid is A=1/2(b1+b2)h. So volume of the trough is the area of the ends times the length.
Explaining how to derive the formula for the distance between two points -Prepare an essay of 1,000 words explaining how to derive the formula for the distance between two points in analytic geometry 3-space.
The number of new contributors to a public radio station's annual fund drive over the last ten years is. Develop a trend equation for this information, and use it to predict next year's number of new contributors.
At the end of the year, the total interest from these investments was $940. How much was invested at each rate?
a rancher has 200 feet of fencing available to enclose two adjacent retangular corrals. Each corral is to be the same size. What dimensions for each corral will maximize the area enclosed by the two corrals?
A ball thrown vertically upward at time t=0(s) with initial velocity 80 ft/s and initial height 96ft and height function of y(t) = -16t^2 + 80t + 96. What is the max height attained by the ball?
a corporation was formed on january 1 and was authorized to issue 400000 shares of common stock at 2 par value. during
The minute hand on a watch is 5 mm long and the hour hand is 4 mm long. How fast is the distance between the tips of the hands changing at one o'clock? (Round your answer to one decimal place.)
A 1.5-lb brick is released from rest A and slides down the inclined roof. If the coefficient of friction between the roof and the brick is = 0.3, determine the speed at which the brick strikes the gutter G.
A flexible container at an initial volume of 8.15 L contains 9.51 mol of gas. More gas is then added to the container until it reaches a final volume of 15.1 L. Assuming the pressure and temperature of the gas remain constant, calculate the number of..
What is the probability that na applicatnt's score is above 215?
You may complete this exercise individually as a group of one or as a group of more than one. Participation in this exercise counts as answering one DQ and counts toward the normal participation requirement. Students will form their own groups wit..
a 100 gal tank initially contains 50 gal of brine with a concentration of 1 lb of salt per gallon. pure water is poured
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