need help with quadratic equations
need help with quadratic equations
Use the graph of f(x) to find the solutions to the equation f(x)=0. What are the solutions of the equation 2x^2=8? Use a graph of a related function whose roots answer the question...
I would like find out how to get the middle and last term together
how would the equation be written?
an airplane flew 660 miles with the wind,and then took 40 minutes longer for the return flight against this wind.if the planes flies 200 miles per hour in still air,find the speed of the wind....
How many real-number solutions does the equation have? -7x^2+6x+3=0 How many real-number solutions does the equation have? 0=3x^2+18x+27
A school is fencing in a rectangular area for a playground. It plans to enclose the playground using fencing on three sides, as shown at the right. http://sketchtoy.com/64751880 The school...
0 = –3x² + x – 4
A parabola graph has the Vertex and Y-intercept is A(0,8) and x-intercepts of B(3,0) and C(-3,0).... Question 1) The parabola has the equation ax^2+bx+c , Use "A(0.8)"...
A parabola graph has the Vertex and Y-intercept is A(0,8) and x-intercepts of B(3,0) and C(-3,0).... Question 1) The parabola has the equation ax^2+bx+c , Use "A(0.8)"...
Simplify if possible
Simplify solution if possible
Solve 2x^2 + 8x -4 = 0 by completing the square. Solve (x^2 +x)^2 -3(x^2+x) +2=0 using substitution, factoring, and the quadratic formula
One positive integer is 5 less than twice another. The sum of their squares is 250. Find the integers.
You throw a ball in the air with an initial velocity of 31 feet per second. The ball leaves your hand when it is 6 feet above the ground. You catch the ball when it reaches a height of 4 feet. After...
A ladder of length 2x+1 feet is positioned against a wall such that the bottom is x−1 feet away from a wall. The distance between the floor and the top of the ladder is 2x feet.
Solve the equation. Approximate the solutions to the nearest hundredth. (Enter your answers as a comma-separated list.) Let g(x) = 4.2x2 + 0.6x. For what value(s) of x is g(x) = 3.15...
f(x) = -9x2 + 6x + 9
I was given this formula: s=-16t2+v0t+S0 A rubber duckie is thrown into the air from the ground with an initial velocity of 100ft/s. Neglecting air resistaqnce, what is...
The length of a rectangle is 7 units more than its width. If the width is doubled and the length is increased by 2, the area is increased by 42 square units. Find the dimensions of the original rectangle...