Answer:
The absolute error is <u>4 ft</u> and percent error of Tony's estimate is <u>9.8%</u>.
Step-by-step explanation:
Given:
Tony estimated the height of his office building to be 45ft. The actual height of his office building is 41ft.
Now, to find the absolute error and the percent error of Tony's estimate.
The height of his office building = 45ft.
The actual height of his office building = 41 ft.
So, to get the absolute error:
<em>The height of his office building - the actual height of his office building</em>
The absolute error = 4 ft.
Now, to get the percent error of Tony's estimate:
<em>Percent error of Tony's estimate rounding to nearest tenth = 9.8%.</em>
Therefore, the absolute error is 4 ft and percent error of Tony's estimate is 9.8%.
The answer for your question is 2
In order to know at what price the two services offered would be the same, we can actually use the process of trial and error starting from 1 onwards. The first one is 50.45 per month plus a standard fee of 60 for installation. So this will be 60+50.45x (number of days). After that. there is the other one that has free installation but charges 57.95. So it can be expressed as 57.95x. Now after trial and error with numbers as x, I came upon 8. If x is 8, then the first one will be 60+50.45 (8) = 463.6. For the second, 57.95(8) will also equal to 463.6. So the day in which the two services will charge the same is during the 8th day.
Subtract 4 from each side of the inequality,
and the answer will jump out at you.
Answer:
9 years
Step-by-step explanation:
You want to find t such that y=10.
10 = 7.67(1.03)^t
10/7.67 = 1.03^t . . . . . divide by 7.67
log(10/7.67) = t·log(1.03) . . . . . . take logs
log(10/7.67)/log(1.03) = t ≈ 8.9743 . . . . . years
After about 9 years, the employee will be earning $10 per hour.
