ALGEBRA
What is the solution to the equation 2x+5=15?
x = 5
What is the formula for area of a triangle?
A = 1/2 bh
What is the mean of the set 2, 4, 6, 8, 10?
6
What is a function? Give an example.
I assigned each person a number and asked them their favorite number and everyone answered the survey only once.
Give an example of a ratio.
For every 2 quarts of red paint, mix 3 quarts blue for a pretty shade of purple.
Simplify -3x + 7x - 2
4x - 2
Calculate the circumference of a circle with a radius of 5 units.
31.4
Center/Middle; Order least to greatest and scratch off until you find the middle.
How can you see if a graph is a function?
Vertical line test
If a recipe calls for 2 cups of flour and 3 cups of sugar. What is the ratio of sugar to flour?
3:2
Simplify 4(x+3) - 2x
2x + 12
If the angles of a triangle are in the ratio 2:3:4 what are the measures of the angles?
If the data set's mode is 7, what does that mean?
7 occurred the most
What is the difference between linear and nonlinear? Can a nonlinear graph be a function?
Line vs not line; yes, a parabola
Solve the proportion. 3/x = 6/12
x = 6
Solve for x. 3(x-2) = 12
x = 6
Find the volume of a rectangular prism with a length of 4, width of 3, and height of 5.
60
What is the probability of rolling a sum of 7 with two six-sided dice?
6 combinations out of 36 options. So 6/36 = 1/6
Is the following a function {(1,2), (2,1) (0,2), (1,0)}?
No
If a car travels 150 miles on 5 gallons of gas, what is the miles per gallon ratio?
30 miles per gallon
What is the slope of the line y = -2x + 7 and is the line positive or negative?
Find the missing angle of the right triangle with legs of 3 and 4.
5
Explain what standard deviation is and its significance to the data sets
How much the data deviates from the mean.
Ex. (3,1)
A map has a scale of 1 inch to 20 miles. How many miles does 3 inches represent?
60 miles