<span>Step 1: Make sure the bottom numbers are the same.Step 2: Add the top numbers , put the answer over the denominator.<span>Step 3: Simplify the fractio</span></span>
Answer:
(B) 0.74 + or - 2.797 × 0.22/√25
Step-by-step explanation:
Confidence Interval = mean + or - t × sd/√n
mean = 0.74 hours
sd = 0.22 hours
n = 25
degree of freedom = n - 1 = 25 - 1 = 24
Confidence level = 99%
t-value corresponding to 24 degrees of freedom and 99% confidence level is 2.797
Confidence Interval = 0.74 + or - 2.797 × 0.22/√25
Answer:
16x-8
Step-by-step explanation:
We need to calculate the total time. We are given two functions that when summed up will give you total time.

The linear equation is y = 0.5x
<h3>How to determine the equation?</h3>
The points on the line are given as: (0,0) and (2,1)
The equation is then calculated using:

Substitute the known values

Evaluate
y = 0.5x
Hence, the equation is y = 0.5x
Read more about linear equations at:
brainly.com/question/14323743
#SPJ1