EXPRESSIONS
Write the phrase as an expression.
The quotient of 12 and a number h
12/h
What is the #1 goal of solving equations?
Isolate the variable
What is the formula for the area of a parallegram?
Area= base x height
What integers represent these situations:
You earn $12
You are SCUBA diving at 10m.
12, -10
How do you find the mean of a data set?
Add up all the data and divide by the number of data
Evaluate the expression when x=20, y=4, and z=7.
3z + 8
29
x + 47 = 159
x = 112
Find the area of a parallelogram with a base of 20 in. and a height of 40 in.
800 in2
Compare:
-1 and -4
-1 > -4
What is the median?
the middle number in an ordered set of data
Write the algebraic expression as a phrase.
x - 5
5 less than a number x
5 fewer than x
x reduced/decreased by 5
3x = 36
x = 12
What is the formula for area of a triangle?
Area=1/2 base x height
Order from least to greatest.
-2.04, -3, -2.4, -2.19, -5.8
-5.8, -3, -2.4, -2.19, -2.04
What is the mode of this data set?
8, 8, 5, 9, 8, 9, 5
8
Simplify the expression. (combine like terms)
10 + (2+y)
12 + y
1/3 x = 15
x= 45
What is the area of a triangle with a base of 3 cm and a height of 4 cm?
A= 6 cm2
Order from least to greatest.
-15, |-21|, |19|, -20, 25
-20, -15, |19|, |-21|, 25
Find the mean of the data set
12, 16, 0, 8, 31, 28, 17
16
Factor the expression using the GCF.
36x - 28
4(9x - 7)
x/6.8 = 23.2
x = 157.76
A=1/2h(b1 + b2) is the formula for what shape/figure?
trapezoid
In which Quadrant would the ordered pair be located?
(-4, -3)
Q III
How do you find the IQR on a box and whisker plot?
Q3 - Q1