(a) and (b) looks correct
(c) Here's how my table looks like:
15 -18 324
27 -6 36
28 -5 25
34 1 1
42 9 81
52 19 361
SUM 828
(d) Take the sum of 828 and divide it by 6 to get 138. Now take the square root of 138 to get the standard deviation:
sqrt(138) ≈ 11.75
The value of the car after 10 years is $5557.8.
What is depreciation?
Depreciation refers to the reduction in the value of an asset over time and such valued reductions are reflected in the Balance sheet at the year ended.
Given
A new car is purchased for 23700 dollars.
The value of the car depreciates at 13.5% per year.
According to the question,
The value of the car depreciates therefore the amount of the car is determined by the formula,
Where, P = $23700, r = 13.5% and t =10 years
Substitute all the values in the formula,
Hence, the value of the car after 10 years is $5557.8.
To know more about Percentages click the link given below.
brainly.com/question/14675742
Answer:
+- 5 and +- 3
Step-by-step explanation:
qn 2:
4r² = 91 + 9
4r² = 100
r² = 25
r = +- 5
qn 3:
4r² = 29 + 7
4r² = 36
r² = 9
r = +- 3
I believe it's b. Hope this helps
B and C are correct because you do basic PEMDAS and get 58 for both those expressions. If this is right could you possibly give me brainliest? Hope this helped.
