Create a equation to solve for the mid segment with bases x-6 and 2x-9
1 answer:
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The distance covered in one hour is 76 miles.
<u>Step-by-step explanation:</u>
Edward drives a car for 28.5 miles.
Therefore, the distance he travels by the car = 28.5 miles.
The time it takes to drive 28.5 miles is 3/8 of an hour.
<u>The formula to find the rate :</u>
Rate = Distance traveled / Time taken in hours.
Here, the distance is 28.5 miles and time is 3/8 hour.
Rate =
<u>To find the distance covered in 1 hour :</u>
Let us assume, 'x' be the distance covered in one hour.
Rate =
<u>Now, comparing the rates to find the x value :</u>
⇒
⇒
⇒
⇒
Therefore, the distance covered in one hour is 76 miles.
Answer:
T = 4.541
Step-by-step explanation:
We don't have the standard deviation for the population, so we use the t-distribution.
The first step to solve this problem is finding how many degrees of freedom, we have. This is the sample size subtracted by 1. So
df = 4 - 1 = 3
98% confidence interval
Now, we have to find a value of T, which is found looking at the t table, with 3 degrees of freedom(y-axis) and a confidence level of . So we have T = 4.541