50 in, 48in, 14in, should create a right triangle.
99(x-77)=99(x+88)
99x-7623=99x+8712
99x-99x=8712+7623
0=670824.no solution as x becomes 0
Answer: The standard error of the sample mean = 0.44
Step-by-step explanation:
Standard error of the sample mean = 
<em> , where </em>
= population standard deviation , n= sample size.
Given : n= 45 , 
grams
The e standard error of the sample mean 
Hence, the standard error of the sample mean = 0.44
Answer: 15.7 minutes
Step-by-step explanation:
Let x be the time in the beginning (in minutes).
Given: The track team is trying to reduce their time for a relay race.
First they reduce their time by 2.1 minutes.
Then they are able to reduce that time by 10
If their final time is 3.96 minutes, then
x-t1-t2= 3.6
x= 3.6+ t1+ t2
x= 3.6+ 2.1+ 10
x= 15.7
Hence, their beginning time was 15.7 minutes.
