Final Exam Flashcards
- -1+3
- 2+4
- 9+-4
- -11+2
- -2+3
- 2
- 6
- 5
- -9
- 1
- 5-3
- -2–4
- -4-6
- 6–2
- -3–7
- 2
- 2
- -10
- 8
- 4
- 2*4
- -3*-2
- 2*-5
- -5*7
- -7*-8
- 8
- 6
- -10
- -35
- 56
- 49/7
- -56/8
- 24/-3
- -36/-6
- -28/-2
- 7
- -7
- -8
- 6
- 14
- X + 3 = 4
- 2x = 6
- 1/2x = 18
- X - 7 = 10
- 3x = -9
- X=1
- X=3
- X=36
- X=17
- X=-3
- 2x+3=9
- x+3-2=5
- X/4+1=5
- 3+2x=7
- 1/4x+3=12
- x=3
- x=4
- x=16
- x=2
- x=36
- 6-2x+3=5
- 3x + 5x + 4 – x + 7 = 88
- 3y + 2 = 11
- 6x + 5 = 10 + 5x
- 1/4x-2=3
- x = 2
- x = 11
- y = 3
- x = 5
- x=20
For this set of questions you need to tell what are like terms (1-3) or combine like terms to simplify (4-5)
- 3x + 2 + 4x - 4
- -4x - 9y + 3x + 4
- -3x, 4y, 4y2, 2y, 22, 4x
- 3x + 4x -7
- 7xy + 6y + 6xy
For this set of questions you need to tell what are like terms (1-3) or combine like terms to simplify (4-5)
- 3x, 4x; 2, -4
- -4x, 3x; -9y; 4
- -3x, 4x; 4y, 2y; 4y2; 22
- 7x-7
- 13xy + 6y
For each problem write an equation to use to solve
- Helen has 2 inches of hair cut off each time she goes to the hair salon. If h equals the length of hair before she cuts it and c equals the length of hair after she cuts it, what equation should you write?
- Jenny, Kenny, and Penny together have 51 marbles. Kenny has double as many marbles as Jenny has, and Penny has 12. How many does Jenny have?
- The mass of the Great Pyramid is 557t greater than that of the Leaning Tower of Pisa. Stone Henge has a mass of 2695t which is 95t less than the Leaning Tower of Pisa. There once was a Greater Pyramid which had a mass twice that of the Great Pyramid. What was the mass of the Greater Pyramid?
- h-2=c
- m+2m+12=51
- P=2{(2695t + 95t) + 557}
What type of correlation is happening here?
25, 100
100, 25
75, 45
35, 90
A. Negative
B. Positive
C. None
The answer is A negative correlation, because when one value goes up the other goes down.
What type of correlation is there between swimsuit size and your favorite color?
A. Positive
B. None
C. Negative
The answer is B No correlation, because your swimsuit size does not have any affect on your favorite color and vice, versa.
Give an example of positive corelation.
If you said anything that the relation that they have makes both quantities go up or both go down then you are correct.
What is strong correlation?
What is weak correlation?
When the scatter plot’s points are in close distance to eachother their correlation is strong.
When the scatter plot’s points are in far distance to eachother their correlation is weak.
How do you determine the line of best fit?
What is this line’s use?
You should put the line of best fit between all of the data points so that there is a equal amount on both sides.
This line is the one you use to determine things about the graph that otherwise you couldn’t do.
