equations
Solve 3x - 15 = -21.
x = -2
What is the slope of 2x + 3y = 6
-2/3
Factor x2 +10x + 16
(x + 8)(x + 2)
The square root of 115 is between what two integers?
between 10 and 11
Solve (x+5)/12 = (x-2)/8
16
Solve
-4( 2 - x) = 24
x = 8
Write an equation parallel to y=3/4 x -3 and contains the point ( 0,5)
y = 3/4 x + 5
Factor 25x2 - 49
(5x + 7)(5x - 7)
Simplify square root of 24 x3 y2
2xy times the square root 6x
Paco went to the movies. He spent a total of $70. He spent $30 on food and bought movie tickets for himself and three of his friends. How much did each movie cost?
$10
4x + 3( x - 2) = 5x - 20
x = 7
What is slope of equation perpendicular to
2x -5y = 6?
-2.5
Find the area of a rectangle if the length is 2 more than 5 times the width.
5x2 + 5 x
Find the cube root of -72x3y5
-2xy(cube root of 9y2)
You purchase a stereo system for $830. The value of the stereo system decreases 10% each year. What is the value of the system after 2 years?
$672.3
2x + 3 < -5x -4 Write in set builder notation
x < -1
Which is an equation of the line containing the points (-1,5) and (3,9)?
y = x + 6
Factor 2x2 -11x -21
(2x + 3) ( x -7)
What is the quadratic formula and why do you use the quadratic formula?
-b +- the square root of b^2 -4ac all divided by 2a to find the x-intercepts or roots of an quadratic equation
At a baseball game, Jose bought five hot dogs and three sodas for $17. At the same time, Allison bought two hot dogs and four sodas for $11. Find the cost of one hot dog and one soda.
Hot dogs cost $2.50 and a soda costs $1.50
Solve the equation
5x -(x + 3) = 2(2x -1) + 1
Represent the answer in three ways
All Real numbers
x = (neg, infinity, infinity)
number line
A business purchases a computer for $2000. The value of the computer depreciates $400 per year. Which linear equation gives the value v of the computer after y years?
v = 2000 - 400 y
What is volume of a rectangular prism with a length of 2 x+5, a width of 3x and a height of 4x - 1.
24x3 - 66 x2 - 15x
A 10 ft ladder is leaning against a building and is 4 feet away from the building. How high on the building is the ladder?
The ladder goes up the square root of 84 ft
Find the solution of
x - 6y = -25
2x + 70 = -8y
(-31, -1)