Answer: 0.3292
Step-by-step explanation:
Let x be the random variable that represents the temperature of a lake.
Given : 
and 
.
Using formula : 
We assume that the temperature of a lake follows a normal distribution.
Z-score corresponds to x= 71
Z-score corresponds to x= 73
The probability that that the temperature of the lake is between 71 and 73 degrees :
[using z-table for right tailed test]
Hence, the probability that that the temperature of the lake is between 71 and 73 degrees =0.3292
Answer:
Step-by-step explanation:
13=3x+4
subtract 4 from both sides
9=3x
divide by 3
x=3
t is the number of hours Lamar worked as a tutor
We know that he worked for 92 hours total, so he worked 92-t hours as a waiter.
So his earnings are: 7t + 8(92-t) = 736 -t dollars
This expression seems logical as if Lamar worked 0 hours as a tutor and 92 as a waiter his earnings would be 8*92 = 736
If he worked as a tutor for 92 hours it would be 7*92= 644
736-92= 644
So our expression seems to be working.
Answer:
19.99+ 0.29m = 73.93
Step-by-step explanation:
bc u add 19.99 extra to every m for .29 (.29m)= and the total is 73.93
Number 1 is answer 1 Number 2 is answer 3 Number 3 is answer 4
