Operations on x
x = 36
(-5)0
1
What is the mean of the following set of numbers?
-2 3 7 9 -5 0
The mean is 2
Sarah rolls a 6 sided dice. What is the theoretical probability that Sarah will roll a 3?
17% chance
Determine whether the following numbers form a Pythagorean triple: 8, 15, 17
Be sure to show work!
Yes, 82+152=172 so 8, 15, 17 form a Pythagorean triple.
-2(x-3) = 20
x = -7
6x2 - 2x2
4x2
What is the mode of the following set of numbers?
-2 3 7 9 -5 0
No mode
If a coin is flipped 70 times, how many times would you predict the coin would land on heads?
35 times
Combine like terms and simplify as much as possible:
4√2x + 3√2x
7√2x
What is the inverse of multiplying by 2?
Dividing by 2
6x2•2x2
12x4
What is the median of the following set of numbers?
-2 3 7 9 -5 0
Ben flipped a coin 12 times and got heads 5 times. What type of probability did Ben use? He concluded that he landed on heads 5% of the time. Is Ben correct?
Ben used experimental probability. Ben would land on heads 5/12 times or 42% of the time so the percent he calculated is incorrect.
Tim lost 15% of his body weight. He now weighs 200 pounds. What was Tim's weight before he began losing weight?
Tim weighed 235.29 pounds before losing the weight.
Undo the following operations to solve for x:
1) Add 5
2) Divide by 2
You would need to...
1) Multiply by 2
2) Subtract 5
(4x3)2
16x6
A student's grade is calculated based on homework, projects, and a presentation. The homework is worth 20%, projects are worth 40% and the presentation is worth 40%.
A student has grades in the following categories:
Homework: 60
Projects: 85
Presentation: 70
What is the student's total grade?
The student's grade is a 74%
If a six-sided dice is rolled 600 times, how many times would you predict a roll of a 1 or a 6?
200 times
It is quarter wing night. You bring $10 with you. You want to buy a large drink for $1.25. You have to pay a 6% tax on your food and drink. You are not leaving a tip. How many wings can you purchase?
You can buy 32 wings.
Undo the following operations to solve for x:
1) Subtract 10
2) Multiply by 4
3) Divide by 6
You would need to ...
1) Multiply by 6
2) Divide by 4
3) Add 10
(2x2y3)3
8x6y9
A student's grade is calculated based upon three midterm scores and a final. Each midterm is worth 20% and the final exam is worth 40% of a student's grade.
Calculate a student's grade if they scored the following:
1) Midterm 1: 65%
2) Midterm 2: 80%
3) Midterm 3: 40%
4) Final: 75%
This student received a 67% in the class.
Theoretical probability makes an assumption about something based on theory.
Experimental probability deals with data from a specific instance.
Four people are trapped on an island with 40 cups of rice. They want to split it up evenly based on the weight of each person. Who would receive the most cups of rice? How many cups would this person receive?
Ethan weighs 130 lbs
Pine weighs 120 lbs
Casey weighs 142 lbs
Tanner weighs 127 lbs
Casey would receive the most cups of rice at 11 cups.