Tutors Answer Your Questions about Quadratic Equations (FREE)
Question 1173184: The height of a projectile fired upward is given by the formula
s = v0t − 16t2,
where s is the height, v0 is the initial velocity, and t is the time. Find the time for a projectile to return to Earth if it has an initial velocity of 248 ft/s.
Click here to see answer by ewatrrr(24785)   |
Question 1173198: please help me
An amount of $42,000 is borrowed for 5 years at 8.5% interest, compounded annually. If the loan is paid in full at the end of that period, how much must be paid back?
round your answer to the nearest dollar.
Click here to see answer by ewatrrr(24785) |
Question 1173309: A diver jumps from a platform 15 meters above the surface of the water. The diver's height, in meters, above the water is given by the equation h(t)=-4.9t^2 + 5.5t + 15 where t is the time in seconds after the diver jumps. What is the max height of the diver and how long does it take the diver to reach that height?
Click here to see answer by Solver92311(821)  |
Question 1173322: Dimensions of a garden. A patio measures 20 meters by 30 meters where you want to build a flower garden in the center, with a strip of grass of uniform width, around the garden. There must be 184 square meters of grass. How long and wide should the garden be?
Click here to see answer by josgarithmetic(39613) |
Question 1173321: Dimensions of a piece of sheet metal. A rectangular piece of sheet metal is 4 inches less long than twice the width. A 2-inch square piece is cut at each corner. The sides are then folded up to form an open box whose volume is 256 cubic inches. Find the length and width of the original piece of metal.
Click here to see answer by josgarithmetic(39613) |
Question 1173321: Dimensions of a piece of sheet metal. A rectangular piece of sheet metal is 4 inches less long than twice the width. A 2-inch square piece is cut at each corner. The sides are then folded up to form an open box whose volume is 256 cubic inches. Find the length and width of the original piece of metal.
Click here to see answer by ikleyn(52750)  |
Question 1173411: . Tobey sits by the lake and throws a stone into it. The path of the stone is described by the equation
h= 22t -5t2 where h is the height of the stone in metres at t seconds after it has been thrown. By drawing a suitable graph, find the time taken for the stone to reach
a) The maximum height
b) The surface of the lake
Click here to see answer by ikleyn(52750) |
Question 1173494: The height s, in feet, of a rock thrown upward at an initial speed of 64 ft/s from a cliff 47 ft above an ocean beach is given by the function
s(t) = −16t2 + 64t + 47,
where t is the time in seconds. Find the maximum height above the beach that the rock will attain.
Click here to see answer by ewatrrr(24785) |
Question 1173491: A fountain shoots water from a nozzle at its base. The height h, in feet, of the water above the ground t seconds after it leaves the nozzle is given by
h(t) = −16t2 + 18t + 7.
What is the maximum height of the water? Round to the nearest tenth.
Click here to see answer by ewatrrr(24785) |
Question 1173489: An event in the Summer Olympics is 10-meter springboard diving. In this event, the height s, in meters, of a diver above the water t seconds after jumping is given by s(t) = - 4.9t2 + 7.6t + 10. What is the maximum height that the diver will be above the water? Round to the nearest tenth.
Click here to see answer by ewatrrr(24785) |
Question 1173498: A manufacturer of microwave ovens believes that the revenue R, in dollars, that the company receives is related to the price P, in dollars, of an oven by the function R(P) = 100P - 0.25P2. What price will give the maximum revenue?
Click here to see answer by ikleyn(52750) |
Question 1173490: A manufacturer of microwave ovens believes that the revenue R, in dollars, the company receives is related to the price P, in dollars, of an oven by
R(P) = 120P − 0.25P2.
What price will give the maximum revenue?
Click here to see answer by ikleyn(52750) |
Question 1173492: The suspension cable that supports a small footbridge hangs in the shape of a parabola. The height h, in feet, of the cable above the bridge is given by
h(x) = 0.25x2 − 0.2x + 25,
where x is the distance in feet from one end of the bridge. What is the minimum height of the cable above the bridge? (Round your answer to two decimal places.)
Click here to see answer by ankor@dixie-net.com(22740)  |
Question 1173497: An event in the Summer Olympics is 10-meter springboard diving. In this event, the height s, in meters, of a diver above the water t seconds after jumping is given by s(t) = - 4.9t2 + 7.3t + 10. What is the maximum height that the diver will be above the water? Round to the nearest tenth.
Click here to see answer by Boreal(15235)  |
Question 979634: quick computing company produces calculators. thay have found that the cost, c(x), of making x calculators is a quadratic function in terms of x. the company also discoversd that it costs $61 to produce 3 calculators, $165 to produce 7 calculators, and $385 to produce 12 calculators. Find the total cost of producing 6 calculators
Click here to see answer by bendyraptor(0) |
Question 1173664: When a pendulum that is 0.5m long swings back and forth, its angular displacement, theta , in radians, from rest is given by theta= (1/4 sin( pi/2t), where t is the time , in seconds.
a) what is the period...I think it is 4??
b) At waht time is the pendulum first displaced by an angle of 0.1 radians? no idea
Click here to see answer by htmentor(1343)  |
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