#3. the probability of spinning "rock" is 25% or 1/4 so we can use this probability to predict the number of times we would expect to get "rock" in 80 spins as follows:
25% of 80 = .25(80) = 20 So how likely is it we spin 20 'rock' out of 80 spins? At 25%, not very likely..
#4.
A. True
B. True
C. False, the theoretical probability of make make using the spinner is

or about 56%
Answer:
9
Step-by-step explanation:
You do 90 divided by ten.
Answer: 3x^4-2x^3- 15x^2+14x
Step-by-step explanation:
You should just multiply the two values together.
Work = Force * distance (along the line of force)
= 20N*10m
=200 N-m
=200 joules
Answer:
12 bins holding 20 tons and 18bins holding 15tons
Step-by-step explanation:
it gives a simultaneous eqn
x + y = 30
20x + 15y = 510