Answer:
Domain = [-9, 1]
Range = [-1, 4]
Step-by-step explanation:
The horizontal extent of the graph is from - 9 to 1. Therefore,
Domain = [-9, 1]
The vertical extent of the graph is from - 1 to 4. Therefore,
Range = [-1, 4]
To calculate the mean of a set of numbers and them all together and divide by the amount of numbers.
Example:
Find the mean of 12, 25, 36.
12 + 25 + 36 = 73
73 / 3 = 24.33
Our mean is 24.33.
7/3=L/9
⇒63=3L
⇒L=21
which mean the Length equal 21 tiles and width equal 9 tiles for the new rectangle.
Answer:
Dice and dollars You roll a die, winning nothing if the number of spots is odd, $1 for a 2 or a 4, and $10 for a 6. a) Find the expected value and standard deviation of your prospective winnings. b) You play twice. Find the mean and standard deviation of your total winnings. c) You play 40 times. What’s the probability that you win at least $100?
Step-by-step explanation:
