Algebra
What is the solution to the equation 2x+3=11?
x = 4
What is the formula for the area of a triangle?
1/2b x h
What is the mode of the following set of numbers: {3, 7, 3, 9, 10, 3, 8}?
3
15 + 27
42
What is a function?
When each input has exactly one output.
Simplify the expression 3(a+4)−2(a−5)
a + 22
Calculate the circumference of a circle with a radius of 7 cm.
Circumference = 2πr=14π cm
Calculate the mean of the numbers: {12, 15, 8, 10, 20}.
13
144/12
12
If g(x)=x+4, what is g(2)?
g(2) = 6
Solve for x: 5x−2=3x+6
x = 4
What is the sum of the interior angles of a triangle?
Sum = 180
What is the median of the following data set: {4, 1, 7, 3, 9}?
4
25 x 4
100
Determine if the relation {(1,2), (2,3), (1,4)} is a function.
Not a function (input 1 has two outputs).
What is slope of (2,3) and (4, 5)
If the base of a rectangle is 10 cm and the height is 4 cm, what is the area?
40 cm2
Define range in a set of numbers.
Range = Difference between the highest and lowest values.
Simplify the expression 8−3(2+1)
5
What is the domain of the function h(x)=x−1
Domain: [1,∞)
If f(x)=2x^2−3x+5, what is f(3)?
f(3)=14
Find the volume of a cylinder with a radius of 3 cm and a height of 10 cm.
Volume = 90π cm3
A survey shows that 60% of students prefer math over science. If there are 200 students, how many prefer math?
120
If you have 1212 apples and you give away 55, how many do you have left?
7
If f(x)=3x+1, what is f(−1)?
f(−1)=−2