Factoring
What is a GCF?
the greatest common factor
What cannot repeat for a relation to be a function?
what is x
What are the percentages on a normal curve for the empirical rule?
68%
95%
99.7%
solve x^2-16=0
x= +-4
What is the probability of rolling an even number on a dice?
1/2 or 0.5
In 6x^2-12x+39 what is the GCF?
3
Could the following list of points be a function?
{(1,1),(2,3),(4,7),(3,2),(5,1)}?
if the mean is 50 and the standard deviation is 14, what values are 1 std dev below and 1 above the mean?
36 and 64
solve 5x^2-21x+4=0
x=1/5,4
There is a spinner with 13 equal areas, numbered 1 through 13. If the spinner is spun one time, what is the probability that the result is a multiple of 2 or a multiple of 5?
7/13
Factor x^2+x-90
(x-9)(x+10)
In the function y=2x+5, what is the slope?
2
if the mean is 46 and the standard deviation is 8, what values are 2 std dev below the mean and 3 std dev above?
30 and 70
solve 6x^2-8x=3x-4
x=3/4 and 1/2
In a certain Algebra 2 class of 24 students, 9 of them play basketball and 13 of them play baseball. There are 7 students who play both sports. What is the probability that a student chosen randomly from the class plays basketball or baseball?
15/24 or 5/8
factor 3x^2+22x+24
(3x+4)(x+6)
Is this a function? x=y^2-3
No
Using the empirical rule, determine the interval that represents the middle 95% of data if the mean is 34 and the standard deviations is 2.5
29 and 39
121x^2-25=0
x=+-5/11
A bag contains 8 red marbles, 6 blue marbles and 3 green marbles. If three marbles are drawn out of the bag (without replacement), what is the probability, to the nearest 1000th, that all three marbles drawn will be blue?
Number of blue marbles: 6
P(Blue on first draw)=6/17
P(Blue on second draw)=5/16 - One less blue marble to pick from
P(Blue on third draw)=4/15 - Two less blue marbles to pick from
Need all three events to happen
6/17⋅5/16⋅4/15=120/4080≈0.02941=0.029
Factor 2x^2+7x-9
(2x+9)(x-1)
The function 6x^4-x^2+1 is even, odd, or neither?
even
On a test that has a normal distribution, a score of 48 falls one standard deviation below the mean, and a score of 72 falls three standard deviations above the mean. Determine the mean of this test.
54
solve 5x^2+18x-2=6
x=2/5 and x=-4
come up with your own probability question for your team and correctly answer it
varies