Please find roots of 9 x squared minus 155 x minus 500 is equal to zero

Please find roots of 9 x squared minus 155 x minus 500 is equal to zero

I am a 7th grader who is studying for a academic pentathlon competition that is on march.

Write and solve a system of equations for the following situation.

Convert 25 miles per hour to feet per second. (1 mile = 5280 feet and 1 hour = 3600 seconds)

Write as an equation: The sides of a rectangle are x and (x−4). The perimeter is 87.

The total cost of gasoline varies directly with the number of gallons purchased. Kathy pays $17.93 for 11 gallons of gasoline. Which equation shows the relationship between the total cost of gasoline,...

im not exactly sure how to set up an equation for this. i'm not sure where to put x and how to write the equation.

In your own words, explain why the method of dividing complex numbers works. What property justifies this process?

What is the answer? Algebra

Desmond is 7 inches taller than Niki. If we let r represent Niki s height in inches, write an algebraic expression for Desmond s height.

A=lw

I don't remember how to lay out the equation to this word problem.

I don't know it I need help ASAP

|6y-3|+8=35 Solve for y

When you swim with the current, you can swim 20 miles in two hours. However, when you swim against the current it takes you four hours. How fast is the current running and how fast could you swim...

Quadrilateral ABCD: the point A is (−1, −1), the point B is (3, 6) and the point C is (9, 4). D is unknown but below the x axis. The diagonals...

John and Jose each improved their yards by planting grass sod and geraniums. They bought their supplies from the same sore. John spent $84 on 12ft^2 of grass sod and 5 geraniums. Jose spent $140 on...

The area of a rectangular window is given by the trinomial x^2-14x+48. The Windows length is (x-8). What isbthe Windows width?

I need to find out the answer to this question

I have to simplify (x2 + 7x + 1)(3x2 - 2x - 4) please explain