Answer:

Step-by-step explanation:
Since we're finding the product, we have to multiply:
× 
You can simplify in this stage by using the "butterfly method", and dividing
by
, and
by
, you'd then have:
× 
Multiply the numerators and the denominators to get:

~
If you prefer the longer way, again, multiply:
× 
Multiply the numerators and the denominators:

Simplify the fraction by dividing both the numerator and denominator by
:

It looks like you're given

Then by the additivity of definite integrals this is the same as

(presumably this is what the hint suggests to use)
Then by the fundamental theorem of calculus, we have

The final value of the car will be given by:
final = origamt(1 - .20) to the 4th power. The car will retain therefore,only 80% of its original value from the preceding year for each of the 4 years starting with an original value of $35000.
The calculation is

A measely $14,336!
Te difference of 2 standard deviation of a population n1 & n2 is given by the formula:
sigma (difference)=√(sigma1/n1 + sigma2/n2), Plug:
sigma(d)= √(49/100 + 36/50)
Sigma(d=difference) =1.1
The equation would be: C = 5.5T, where C is the Cost and T is the number of tubes.
If you divide all of the outputs by the inputs, you will get 5.5. That means it's a proportional relationship. Just multiply the number of tubes by 5.5 and you will have your cost.