For each $6 decrease in price, the store expects to sell eight more calculators.The revenue from calculator sales is given by the function R(n) = (unit price)(units sold), or R(n) = (120 - 6n)(80...

For each $6 decrease in price, the store expects to sell eight more calculators.The revenue from calculator sales is given by the function R(n) = (unit price)(units sold), or R(n) = (120 - 6n)(80...

The function f is defined by f(x) = x^2 - 2x - 24 Part A If f(x + 3) = x^2 + kx - 21, what is the value of k? Enter your answer in the box. ______________ Part...

Consider the following claim: If the point (2 + d, y) is on the graph of the function f(x) = x(x - 4), then the point (2 - d, y) is also on the graph. Use algebra to show that the...

Consider the function f, where f(x) = 2x^2 + 6x - 8 What is the vertex form of f(x) ? A. f(x) = 2(x - 3)^2 - 4 B. f(x) = 2(x + 3)^2 - 4 C. f(x) = 2(x -...

Use the quadratic equation y = -2x^2 + 4x + 5 to complete the statements. Enter your answers in the boxes The equation can be written as y = -2 (x + _________ )^2...

H(x)=-1/2x^2+7x+15/2

It is just a quadratic equation problem

what is the vertex of the parabola whose equation is y=x2=+4x+8?

if a rectangular carpet has a perimeter of 120 feet and an area of 800 square feet, what is it width?

a stone is thrown downward from the top of a building with an initial speed of 15 feet per second: the distance d in feet that it falls in t seconds is d=16t2 +15t. How many seconds will it take...

The answer is 110 but I don't know the solution.

Math 2 quadratics

This system has one solution. {y = −2x + 4 y = x^2 + 4x + 13 What is the y-coordinate of the solution? Enter your answer in the box. y...

Problem Page Write the quadratic equation whose roots are 1 and 2, and whose leading coefficient is 5.

The length of a rectangle is 7 ft more than twice the width, and the area of the rectangle is 99 ft .

Length of x+7, a width of 2x. Area of 520 in2.

A football field has a length of 360 feet and a width of 45 feet. Write a quadratic model to represent the amount of feet it would take to walk diagonally across the field.

V=l•w•h v=25,000 cm^3 l=? w=? cut 10 cm off every corner to make it into a box

I cannot find the equation of these points, can someone help me?

please show me steps and the two solutions