h(t)=400-16t^2

h(t)=400-16t^2

The quadratic equation kx2+5mx+9k=0 has two equal rroots.Given that k and m are positive,find the positive ratio k:m and solve the equation.

7x2 - 10x - 1 = 0

This question is on pg 351 of the principles of mathematics 10 the section is 6.5 Interpreting Quadratic Equation Roots the answer is suppose to be 7.07 or -7.07 but I don't know the steps to...

8n2 + 4n - 16 = -n2

Question is of quadratic equation

Is this a quadratic equation or simultaneous equation

Quadratic equation

Let a,b be the two solutions of the quadratic equation 3x2 + 6x + 7 =0 the value of (2a-b)(2b-a) is ?

Jackson and jane are saving up together to buy a car. After x weeks, jackson saces $(xsqaure +10) and jane saves $7x. (a) how long will it take for jackson and jane to first save...

Given that a3 + 1/a3 = 18. Find the value of a4 + 1/a4 - 3

I need help with these, if someone could explain them step-by-step, I would really appreciate it :) 1. 3x² - 48 = 0 2. x² = 36 3. p² - 50 = 0

Examining the blueprints for a rectangular room that is 14 feet longer than it is wide, an electrician determines that a wire run diagonally across this room will be 26 feet long. What is the width...

10th class

What is the importance of quadratic equation in economic ? Examples ? Thank you.

The length of a rectangle is 5 yd more than double the width. And the area of the rectangle is 42 yd ^2 . what are the dementions

Steps to take: 1. Draw diagrams 2. Decide what X will stand for 3. Write an equation that uses the variable and the info they give you 4. Set the equation equal to zero 5. Factor 6...

How many seconds after jumping is the divers height 5 meters? How long does it take the driver to reach the water?

Solve it with quadratic formula

in this question there are two variable but i want to find b.