Linear Equations
x+7=19
x=12
3^2
9
What is the area of a rectangle with length 8 and width 5?
40 square units
Is this relation a function?
(1,2),(2,3),(3,4)
Yes
Find the mean:
2, 4, 6, 8
5
3x=27
x=9
2^4
16
Find the circumference of a circle with radius 3. Use π=3.14π=3.14
18.84
Find the slope:
Points (2,4) and (4,8)
2
Find the median:
3, 7, 9, 10, 12
9
2x−5=17
x=11
5^2×5^3
5^5=3125
Find the volume of a cube with side length 4.
64 cubic units
What is the y-intercept of:
y=3x+7
7
A bag has 5 red marbles and 5 blue marbles.
What is the probability of drawing a red marble?
1/2
4(x−2)=20
x=7
Write in scientific notation:
450,000
4.5×10^5
What is the measure of each angle in a triangle if all angles are equal?
60°
Find the value of y:
y=2x+1 when x=5
11
What is the mode of:
4, 5, 5, 6, 7, 7, 7
7
5x+8=3x+24
x=8
Write in standard form:
7.2×10^3
7,200
Use the Pythagorean Theorem to find the missing side:
a=6,b=8
Find the slope of the line: y=-3x+2
-3
A spinner has 8 equal sections. Two sections are green.
What is the probability of landing on green?
2/8=1/4