Answer:
the answer (in my opinion) could be 82 feet per 6.5 minutes
Step-by-step explanation:
(id like to tell you the rest but i can't cause then it would be plagiarism. hope you understand)
I believe it would be addition property of equality since you can add 14 and 8 to recieve the number that the 8 is being subtracted from to get 14. So in this case x would equal 22.
Answer:
There must be 35 red marbles.
Step-by-step explanation:
This question can be solved using a rule of three.
A probability is the number of desired outcomes divided by the number of total outcomes.
The probability of randomly choosing a red marble is 7/9.
This means that for each set of 9 marbles, 7 must be red.
There are 45 marbles in total in the bag and each is equally likely to be chosen. Work out how many red marbles there must be.
How many red marbles out of 45?
7 red - 9 marbles
x red - 45 marbles

Simplifying by 9


There must be 35 red marbles.
Answer:
The probability that R2 is bigger than R1 is P=0.9633.
Step-by-step explanation:
We need to compute the probability that R2 is bigger than R1:

To do this, we define a new variable Das the difference between the two resistances:

Then,

As R1 and R2 are normal random variables, the properties of D are:

Then, we can calculate the z-value for D=0

