Considering that their household expenses is of $120,000, the mortgage is 12% of their expenses.
The percentage of an amount a of an amount b is <u>a multiplied by 100% and divided by b</u>, that is:

In this problem, the mortgage is of $14,400, while the total expenses are considered to be of $120,000, hence:

The mortgage is 12% of their expenses.
You can learn more about percentages at brainly.com/question/24729807
Answer:
Step-by-step explanation:
[1,2]
local maxima means curve is curved downwards.
in [1,2] it is curved downward.
Answer:
<u>A = 61°</u>
<u>B = 72°</u>
<u>C = 47°</u>
Step-by-step explanation:
Well, first of all, we can see that:

So, we can find angle B.


Now, we can see to that angle C is just 47°
Finally, we know that the sum of all angles in a triangle is 180°, so we have:



I hope it helps you!
Answer:

General Formulas and Concepts:
<u>Calculus</u>
Antiderivatives - Integrals
Integration Constant C
Integration Property [Multiplied Constant]: 
Trig Integration: 
U-Substitution
Step-by-step explanation:
<u>Step 1: Define</u>

<u>Step 2: Identify Substitution Variables</u>
u = 3x
du = 3dx
<u>Step 3: Integrate</u>
- [Integral] Rewrite:

- [Integral] U-Substitution:

- [Integral] Trig Integration:
![\displaystyle \frac{1}{3}[-cos(u)] + C](https://tex.z-dn.net/?f=%5Cdisplaystyle%20%5Cfrac%7B1%7D%7B3%7D%5B-cos%28u%29%5D%20%2B%20C)
- [Expression] Multiply:

- [Expression] Back-Substitute:
