solve 2x-y=4 for y
y=2x-4
simplify cube root of 27 x^3 y^3
3xy
4x + 3( x-2) = 5x - 20
x =- 7
What is slope of equation perpendicular to 2x -5y = 6
-5/2
Find the area of a rectangle if the length is 2 more than 5 times the width.
5x^2 + 2 x
find the midpoint of ( 5,2) and (-2,3)
3.5, 2.5
You purchase a stereo system for $830. The value of the stereo system decreases 13% each year. What is the value of the system after 3 years?
$546.56
2x + 3 < -5x -4
x < -1
Which is an equation of the line containing the points (-1,5) and (3,9)?
y = x + 6
factor 2x^2 -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 divided by 2a to find the x-intercepts or roots of an equation
Find 3 consecutive integers whose sum is 48.
15,16,17
A business purchases a computer for $2000. The value of the computer depreciates $400 per year. Which linear equation gives the value y of the computer after x years?
y = 2000 - 400 x
Factor: 3n² - 15n + 18
3(n - 3)(n - 2)
A 25 ft ladder is leaning against a building and is 3 feet away from the building. How high is the ladder on the building?
24.8 ft
Find the cost for a year gym membership using
$ = 20m+40
where m is the number of months
280