Operations with Real Numbers and Expressions
Evaluate -2|n + 5| when n = -11.
-12
Solve the following inequality:
24<-2x+6<36
-15 < x < -9
Where they cross
A line with a slope of 1/3 and passes through (-4,5). What is the equation of the line?
y = 1/3x - 11/3
Bobby is taking a multiple choice test. He randomly guesses at the first two questions. Each question has 4 choices. What is the probability that he gets both questions correct?
1/16
Simplify: (9x2 + 6x + 4) - (3x2 + 2x + 6)
6x2 + 4x - 2
Solve for x: 9x - 5 = 6x + 9x + 10
x = - 5/2
Solve the system below using elimination.
3x - 6y = 12
2x + 6y = -12
( 0 , -2)
What simple test can you perform to test if a graph is a function?
Vertical Line Test
The following balls are placed in a bag: 5 red, 6 yellow, 3 blue and 3 green. One ball is drawn. What is the probability that the ball is either blue or green?
9/17
Evaluate the following expression when r=3 and t=2. (2 x rt)-2
1/324
How do you graph the solution to the inequality - 1/2 x - 4 < 0?
open circle at -8 and arrow pointing to the right
Name the three ways you could solve a system of equations.
Graphing, Substitution, Elimination
What is a point that you could add to the set of points below that would make it a function?
{(2,3), (3,3), (4,3), (5,3)}
Anything with a 2, 3, 4, 5 as the x
The daily high temperatures, in degrees Fahrenheit, of a town are recorded for one year. The median high temperature is 62 F. The interquartile range of high temperatures is 32. Which is most likely to be true?
A) Approximately 25% of the days had a high temperature less than 30 F.
B) Approximately 25% of the days had a high temperature less than 62 F.
C) Approximately 50% of the days had a high temperature less than 62 F.
D) Approximately 75% of the days had a high temperature less than 94 F.
C) Approximately 50% of the days had a high temperature less than 62 F.
What is the greatest common factor of these monomials: 14x3y3z2 and 22xy2
2xy2
Solve the following Inequality
-3(x - 2) > 2(x + 1)
x < 8
Solve the System of Equations:
2x + 3y = 6
4x + 6y = 12
Inifinite Solutions
The first five terms of a sequence are given below: 15, 24, 33, 42, 51
What is the 15th term?
141
For the set of data
5, 20, 4, -3, 34, 1, 0, 35
Mean, Median, Mode, Range
Mean: 12
Median:4.5
Mode: N/A
Range: 38
What is the least common multiple of these monomials: 6u2v2w3 and 10u3vw4
30u3v2w4
Solve |2x - 7| < 3.
2 < x < 5?
or
x > 2 and x <5
Janice is going on vacation and needs to leave her dog at a kennel. Nguyen's Kennel charges $15 per day plus $20 for a processing fee. The Pup Palace Kennel charges $12 per day, and has a $35 processing fee. When will they cost the same amount?
Day 5
Write an equation in slope-intercept form for the line that passes through (3,7) and (7,4).
y = -3/4x + 37/4
A music store did a survey of 100 people to find out what type of music they bought. The survey showed 13 people preferred alternative, 23 blues, 25 hard rock, and 39 soft rock. If they surveyed another 30 people, how many of them would like soft rock?
About 12