Part a)
a) The given function is
![f(x) = 3 \sin(2x)](https://tex.z-dn.net/?f=f%28x%29%20%3D%203%20%5Csin%282x%29%20)
We let
![y = 3 \sin(2x)](https://tex.z-dn.net/?f=y%20%3D%20%203%20%5Csin%282x%29%20)
Interchange x and y.
![x= 3 \sin(2y)](https://tex.z-dn.net/?f=x%3D%20%203%20%5Csin%282y%29%20)
Solve for y;
![\frac{x}{3} = \sin(2y)](https://tex.z-dn.net/?f=%20%5Cfrac%7Bx%7D%7B3%7D%20%20%3D%20%20%5Csin%282y%29%20)
![y = \frac{1}{2} { \sin}^{ - 1}( \frac{x}{3} )](https://tex.z-dn.net/?f=y%20%3D%20%20%5Cfrac%7B1%7D%7B2%7D%20%20%7B%20%5Csin%7D%5E%7B%20-%201%7D%28%20%5Cfrac%7Bx%7D%7B3%7D%20%29)
![{f}^{ - 1}(x) = \frac{1}{2} { \sin}^{ - 1}( \frac{x}{3} )](https://tex.z-dn.net/?f=%20%7Bf%7D%5E%7B%20-%201%7D%28x%29%20%20%3D%20%20%5Cfrac%7B1%7D%7B2%7D%20%20%7B%20%5Csin%7D%5E%7B%20-%201%7D%28%20%5Cfrac%7Bx%7D%7B3%7D%20%29)
Part b) The range of f(x) refers to y-values for which f(x) exists.
The range of f(x) is
![- 3 \leqslant y \leqslant 3](https://tex.z-dn.net/?f=%20-%20%203%20%5Cleqslant%20y%20%5Cleqslant%203)
This is because the function is within y=-3 and y=3.
c) The range of
![{f}^{ - 1} (x)](https://tex.z-dn.net/?f=%20%7Bf%7D%5E%7B%20-%201%7D%20%28x%29)
is
![- \frac{ \pi}{4} \leqslant y \leqslant \frac{\pi}{4}](https://tex.z-dn.net/?f=%20-%20%20%5Cfrac%7B%20%5Cpi%7D%7B4%7D%20%20%5Cleqslant%20y%20%5Cleqslant%20%20%5Cfrac%7B%5Cpi%7D%7B4%7D%20)
The domain is -3≤x≤3
This is because the domain and range of a function and its inverse swaps.
Part d) The graph is shown in the attachment.
Let the value of the number be represented as x.
Then, write out an equation;
3x=2x+3 <--- Solve for x now
3x-2x=3
x=3
Therefore the number is 3.
Hope I helped :)
Answer:
The measure of an interior angle of a regular 12-gon is 150°.
Hence, option 'C' is correct.
Step-by-step explanation:
We need to determine the measure of an interior angle of a regular 12-gon.
- We know that the number of sides in a regular 12-gon = n = 12
Thus,
Using the formula to determine the measure of an interior angle of a regular 12-gon is given by
(n - 2) × 180° = n × interior angle
substitute n = 12
(12 - 2) × 180 = 12 × interior angle
10 × 180 = 12 × interior angle
Interior angle = (10 × 180) / 12
= 1800 / 12
= 150°
Therefore, the measure of an interior angle of a regular 12-gon is 150°.
Hence, option 'C' is correct.
Let's call x = profit from the sweatshirt sales 1) A vendor pays to rock band 13% of the total profit from T-shirts and sweatshirts sold at every concert. 2) the profit from T-shirts sales was $ 1,632 3) The vendor paid the rock band $ 726 after the last concert We then have the following equation: 0.13 * (1632 + x) = 726 Clearing x: (1632 + x) = (726 / 0.13) x = (726 / 0.13) - 1632 = 3953 $ Answer: the profit from sweatshirt sales was 3953 $
Does the weight matter? Anyways i think you’re basically doing multiplication which is 0.69 x 2 = 1.38.