In the following exercises, solve. Round answers to the nearest tenth.
203. An arrow is shot vertically upward from a platform 45 feet high at a rate of 168 ft/sec. Use the
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- In the following exercises, solve. Round answers to the nearest tenth. 204. A stone is thrown vertically upward from a platform that is 20 feet high at a rate of 160 ft/sec. Use the quadratic equation h=16t2+160t+20 to find how long it will take the stone to reach its maximum height, and then find the maximum height.arrow_forwardIn the following exercises, solve. Rounding answers to the nearest tenth. 496. A ball is thrown upward from the ground with an initial velocity of 112 ft/sec. Use the quadratic equation h=16t2+112t to find how long it will take the ball to reach maximum height, and then find the maximum height.arrow_forwardIn the following exercises, solve. Round answers to the nearest tenth. 280. A ball is thrown vertically upward from the ground with an initial velocity of 122 ft/sec. Use the quadratic function h(t)=16t2+122t+0 to find how long it will take for the ball to reach its maxiumum height, and then find the maximum height.arrow_forward
- In the following exercises, solve. Round answers to the nearest tenth. 284. A cell phone company estimates that by charging x dollars each for a certain cell phone, they can sell 8x cell phones per day. Use the quadratic function R(x)=x2+8x to find the revenue received when the selling price of a cell phone is x. Find the selling price that will give them the maximum revenue, and then find the amount of the maximum revenue.arrow_forwardA toy rocket shot upward from the ground at a rate of 208 ft/sec has the quadratic equation of h=16t2+208t . When will the rocket reach its maximum height? What will be the maximum height? Round answers to the nearest tenth.arrow_forwardIn the following exercises, solve. Round answers to the nearest tenth. 205. A computer store owner estimates that by charging x dollars each for a certain computer, he can sell 40x computers each week. The quadratic equation R=x2+40x is used to find the revenue, R, received when the selling price of a computer is x. Find the selling price that will give him the maximum revenue, and then find the amount of the maximum revenue.arrow_forward
- In the following exercises, solve. Round answers to the nearest tenth. 283. A retailer who sells fashion boots estimates that by selling them for x dollars each, he will be able to sell 70x boots a week. Use the quadratic function R(x)=x2+70x to find the revenue received when the average selling price of a pair of fashion boots is x. Find the selling price that will give him the maximum revenue, and then find the amount of the maximum revenue.arrow_forwardIn the following exercises, solve. Round answers to the nearest tenth. 281. A computer store owner estimates that by charging x dollars each for a certain computer, he can sell 40x computers each week. The quadratic function R(x)=x2+40x is used to find the revenue, R, received when the selling price of a computer is x, Find the selling price that will give him the maximum revenue, and then find the amount of the maximum revenue.arrow_forwardIn the following exercises, solve. Round answers to the nearest tenth. 206. A retailer who sells backpacks estimates that, by selling them for x dollars each, he will be able to sell 100x backpacks a month. The quadratic equation R=x2+100x is used to find the R received when the selling price of a backpack is x. Find the selling price that will give him the maximum revenue, and then find the amount of the maximum revenue.arrow_forward
- In the following exercises, solve. Round answers to the nearest tenth. 277. An arrow is shot vertically upward from a platform 45 feet high at a rate of 168 ft/sec. Use the quadratic function h(t)=16t2+168t+45 find how long it will take the arrow to reach its maximum height, and then find the maximum height.arrow_forwardIn the following exercises, solve by using methods of factoring, the square root principle, or the quadratic formula. 296. A bullet is fired straight up from the ground at a velocity of 320 ft/sec. Use the formula h=16t2+v0t to determine when the bullet will reach 800 feet. Round to the nearest tenth.arrow_forwardIn the following exercises, solve. Round answers to the nearest tenth. 279. A ball is thrown vertically upward from the ground with an initial velocity of 109 ft/sec. Use the quadratic function h(t)=16t2+109t+0 to find how long it will take for the ball to reach its maximum height, and then find the maximum height.arrow_forward
- Elementary AlgebraAlgebraISBN:9780998625713Author:Lynn Marecek, MaryAnne Anthony-SmithPublisher:OpenStax - Rice UniversityAlgebra: Structure And Method, Book 1AlgebraISBN:9780395977224Author:Richard G. Brown, Mary P. Dolciani, Robert H. Sorgenfrey, William L. ColePublisher:McDougal Littell