Answer:
i think its all real number because they are all positives
Answer:
The area of the two-dimensional cross section is 
Step-by-step explanation:
we know that
The two-dimensional cross section that is parallel to face ABC is a triangle congruent with the triangle ABC
Therefore
Calculate the area of triangle ABC

we have that
Triangles ABC and DEF are congruent
so


substitute

14 and 22 are the two numbers in question
<u>Answer-</u>
<em>Finance charge is $99</em>
<u>Solution-</u>
Price of mountain bike = $762
The store's financing requires a 15% down payment, so the present value of annuity will be,

We know that,
![\text{PV of annuity}=P[\frac{1-(1+r)^{-n}}{r}]](https://tex.z-dn.net/?f=%5Ctext%7BPV%20of%20annuity%7D%3DP%5B%5Cfrac%7B1-%281%2Br%29%5E%7B-n%7D%7D%7Br%7D%5D)

Putting the values,
![\Rightarrow 647.7=P[\dfrac{1-(1+\frac{14}{1200})^{-24}}{\frac{14}{1200}}]](https://tex.z-dn.net/?f=%5CRightarrow%20647.7%3DP%5B%5Cdfrac%7B1-%281%2B%5Cfrac%7B14%7D%7B1200%7D%29%5E%7B-24%7D%7D%7B%5Cfrac%7B14%7D%7B1200%7D%7D%5D)



With a monthly payment of this, he will be paying in 24 months will be,

Then,

The extra amount he will be paying,
