Use the single-graph method to solve the given equation. (Enter your answers as a comma-separated list. Round your answers to two decimal places.)-2x² + 8x + 9 = 0x = 4.96,-0.92Need Help?XRead It

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Answered: Use the single-graph method to solve…

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018

18th Edition

ISBN:9780079039897

Author:Carter

Publisher:Carter

Chapter9: Quadratic Functions And Equations

Section9.3: Solving Quadratic Equations By Graphing

Problem 50PFA

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Similar questions

Model the situation with a quadratic equation and solve by any method. 547. The length of a diagonal of a rectangle is three more than the width. The length of the rectangle is three times the width. Find the length of the diagonal. (Round to the nearest tenth.)
Show that the sum of the two solutions to the quadratic equation is ba.
Model the situation with a quadratic equation and solve by any method. 548. A water balloon is launched upward at the rate of 86 ft/sec. Using the formula h=16t2+86t find how long it will take the balloon to reach the maximum height, and then find the maximum height. Round to the nearest tenth.
Solve, rounding answers to the nearest tenth. The quadratic function h(x)=16t2+128t+32 is used to find the height of a stone thrown upward from a height of 32 feet at a rate of 128 ft/sec. How long will it take for the stone to reach its maximum height? What is the maximum height?
The sun casts a shadow from a flag pole. The height of the flag pole is three times the length of its shadow. The distance between the end of the shadow and the top of the flag pole is 20 feet. Find the length of the shadow and the length of the flag pole, Round to the nearest tenth.
The quadratic equation h=16t2+128t+32 is used to find the height of a stone thrown upward from a height of 32 feet at a rate of 128 ft/sec. How long will it take for the stone to reach its maximum height? What is the maximum height? Round answers to the nearest tenth.

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Use the single-graph method to solve the given equation. (Enter your answers as a comma-separated list. Round your answers to two decimal places.) -2x² + 8x + 9 = 0 x = 4.96,-0.92 Need Help? X Read It 4