How do you work out this problem using completing the square x2 - 4x - 80 = 0

Which is the best first step when solving the following system of equations? x+y=3 4x-y=7 A Multiply the first equation by 4. B Add the first equation to the second equation. C Multiply the second equation by Negative 1.

n order for the table below to show exponential decay, what must the value of d be in the table below? d =

On the football team, two out of every seven players are seniors. If the team has 84 players, how many of the players are not seniors?

The value of the card in 2009 was $

Find the median of the list 12,18,21,25,30,43

What is the domain of the function { (1, 1), (0, 0), (2, - 1) }

What is the product of 4xy and y^2 + 2x? A) 4xy + 4xy^3 B) 8x^2y + 4xy^2 C) 8x^2 + 4xy^3 D) 8x^2y + 4xy^3

Gregg is trying to save $800 for a vacation. He makes $15 an hour and works 40 hours a week for a total of $600 a week. After paying expenses he saves 1 3 of his earnings. Which calculation yields the amount of money Gregg saves each week?

Y = 3x - 1 Y = 2x + 3

Do you have a sample of read, draw and write problems for 4th grade math to review for a test?