equations
3x - 15 = -21
-2
What is the slope of 2x + 3y = 6
-2/3
factor x2 +10x + 16
(x + 8)(x + 2)
There are 156 laptops and desktop computers in a lab. There are 8 more laptops than desktop computers. What is the total number of laptops in the lab?
82
If you deposit $4000 into an account paying 6% annual interest compounded quarterly, how much money will be in the account after 5 years?
After 5 years there will be $5387.42 in the account.
Solve for A:
gA + c = e
A = (e-c)/g
Write an equation parallel to y=3/4 x -3 and contains the point ( 0,5)
y = 3/4 x + 5
factor x2 - 49
(x + 7)(x - 7)
The first five terms in a pattern are shown below. −0.5, −0.25, 0, 0.25, 0.5, . . . If the pattern continues, which expression can be used to find the nth term?
A 0.75n − 1.25 B −0.25n − 0.25
C 0.25n − 0.75 D −0.5n + 0.25
C
Paco went to the movies. He spent a total of $50. He spent $20 on food and saw 2 movies. How much did each movie cost?
15
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.
5x2 + 5 x
If the graph of f(c) = c2 - 2x + 4 is moved up 5 units, what is the equation of the new line?
f(c) = c2 - 2x + 9
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 -9
x > 4
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)
If f(x) = x2 + 8x, what is the value of f(6)?
84
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 $2.50 soda $1.50
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
What is area of a rectangle with a length of 2x+5, and a width of 3x2 +4x - 1.
6x3 + 23x2 +18x -5
What is the vertex of the graph of the quadratic function f(x) = x2 + 6x + 10?
(-3,1)
The approximate distance in miles between Los Angeles and a commercial jet flying from Boston to Los Angeles can be found using the function
m = −475t + 2,650, where t is the number of hours the jet has been flying. Which number of hours and minutes is closest to the amount of time that the jet has been flying if the jet is 1,500 miles from Los Angeles?
2 hours and 25 minutes