Linear Equations
Solve: 3x+5 = 20
x = 5
Solve: x^2−9 = 0
x = 3 and−3
Find the area of a rectangle with length 8 and width 5.
A = 40
I have 3 more than twice a number. If the number is 4, what is it?
11
If f(x) = 2x+3 , find f(4)
f(4) = 11
Solve: 2y−7 = 3y+2
y = -9
Factor: x^2+5x+6
(x+2)(x+3)
Find the hypotenuse of a right triangle with legs 6 and 8.
c = 10
A train travels 60 miles in 1.5 hours. Find its speed.
S = 40 mph
Find the slope of the line passing through (2,3) and (5,9)
m = 2
Solve: (4x−1)/3 = 5
x = 4
Solve: 2x^2−3x−2 = 0
x = −1/2 and 2
Find the perimeter of a triangle with sides 5, 12, 13.
P = 30
Two angles of a triangle are 50° and 60°. Find the third angle.
70°
Determine the y-intercept of the line 3x−2y = 6
(0,-3)
Solve: 5(x−2) = 3(x+4)+2
x = 12
A quadratic has roots 2 and -3. Find the equation.
x^2+x−6
A circle has radius 7. Find its circumference (C=2πr).
C = 14π
The sum of two consecutive integers is 75. Find them.
37 and 38
Find the equation of a line with slope 2 passing through (1,5)
y = 2x+3
Solve: 7−2(3x−1) = 5
x = 2/3
Solve: x^2+x−12 = 0
x = −4 and 3
A square has perimeter 32. Find its area.
A = 64
A rectangle’s length is 3 more than twice its width. If perimeter is 30, find dimensions.
L = 11 and W = 4
A function is f(x)=x^2−4x+3. Find f(2).
f(2) = -1