Solve for x:
2x+5=15
5
Two angles in a triangle are 45° and 75°. What is the third angle?
60°
Factor x2-9
(x+3)(x-3)
A rectangle's length is twice its width. If the area is 50, find the diagonal length
5(5)1/2
Find the area of a square with perimeter 20
25
Find the slope of the line passing through (3,7) and (5,11)
m=2
Find the hypotenuse of the right triangle with legs 3 and 4
5
Solve 2x=16
x=4
Solve x2-4x=0
x=0,2,-2
Two supplementary angles differ by 50 degrees. Find the larger angle
115 degrees
Solve the inequality:
3x-4≤ 8
x≤ 4
The circumference of a circle is 20π. What is its radius?
10
Rewrite y=x2+6x+8 in vertex form
y=(x+3)2-1
Factor 2x2+5x+3
(2x+3)(x+1)
Triangle ABC is similar to DEF. If AB=6 and DE=18, find EF if BC=4
12
Write the equation of the line parallel to y=2x+3 that passes through (1,5)
y=2x+3
A sector of a circle with radius 6 has a central angle of 60°. What is its area?
6π
A bacteria population doubles every hour. If it starts at 100, what is the population after 5 hours?
3,200
The function f(x)=2e0.1xmodels growth. What is the growth rate?
10%
Find the area of a circle with radius 5
25π
A car rental costs $30/day plus $0.25/mile. If you have $200, how many miles can you drive in 3 days?
440 miles
In right triangle ABC, AC=5 and BC=12. Find the length of the altitude from C
60/13
Solve 3x2-7x+2=0 using the quadratic formula
x=2 or x=1/3
Solve (2x+3)1/2=5
x=11
A rectangle has length 10 and width 5. What is the length of its diagonal?
5(5)1/2