Can anyone solve this ?
1 answer:
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Solution
The dimension of the rectangular floor is 18ft long and 12 ft wide
Using the conversion table
It is given that 1yd =3 ft
This shows that
12 feet will be equivalent to
Also 18ft will be equialent to
Therefore the new dimension is 6 yard by 4 yard
The area will be
Therefore the required area is
Complete Question
The mean finish time for a yearly amateur auto race was 186.94 minutes with a standard deviation of 0.305 minute. The winning car, driven by Roger, finished in 185.85 minutes. The previous year's race had a mean finishing time of 110.7 with a standard deviation of 0.115 minute. The winning car that year, driven by Karen, finished in 110.48 minutes.
Find their respective z-scores.
Who had the more convincing victory?
A. Roger had a more convincing victory because of a higher z-score.
B. Karen a more convincing victory because of a higher z-score.
C. Roger had a more convincing victory, because of a lower z-score.
D. Karen a more convincing victory because of a lower z-score.
Answer:
The correct option is D
Step-by-step explanation:
From the question we are told that
The mean of the current year is
The standard deviation is
The time taken by the winning car for the current year is
The mean of the previous year is
The standard deviation the previous year is
The time taken by the winning car for the previous year is
Generally the z-score for current year is mathematically evaluated as
=>
=>
Generally the z-score for previous year is mathematically evaluated as
=>
=>
From the value obtained we see that , Hence Karen had a more convincing victory because of the lower z -score.
Answer:
696 miles at the first day, and 174 miles at the second day.
Step-by-step explanation:
Given:
Richard and Linda enjoy visiting Hilton Head Island, South Carolina.
The distance from their home to Hilton Head is 870 miles.
So, the drive takes them 2 days.
<u>Richard and Linda travel four times as far the first day as they do the second day.</u>
Question asked:
How many miles do they travel each day?
Solution:
Let Richard and Linda traveled at the first day =
Then Richard and Linda traveled at the second day will be =
Total distance from their home to Hilton Head = 870 miles
Traveled at the first day in miles + Traveled at the second day = 870
By substituting the value:
Richard and Linda traveled at the first day = = 174 miles
Richard and Linda traveled at the second day will be =
Therefore, they traveled 696 miles at the first day and 174 miles at the second day.