Answer:

Step-by-step explanation:
we have

we know that

Answer:
your teacher is they are giving out FREEE tokens so why do you have to pay
Step-by-step explanation
Answer:
Cameron need to mow 4 lawns.
Step-by-step explanation:
Cameron needs 11$ for some new toys.
But he charges 3$ to mow a lawn.
So, he needs to mow 11/3= 3.66... lawns
The number of lawns can not be decimal. So, let's round to next whole number as 4.
Answer:
Option A
Step-by-step explanation:
multiply 2/7 and 3/4
you get 6/28
then simplify
you get 3/14
Answer:
15.87%
Step-by-step explanation:
Given that:
The mean (μ) = 1000 hours, the standard deviation (σ) = 100 hours.
The z score provides a means of measurement in statistics to determine the variation of a raw score from the mean. The z score is given as:

To find that a randomly chosen light bulb will last less than 900 hours:

Therefore, P(x < 900) = P(z < -1) = 0.1587 = 15.87%