Answer:
To find the inverse of:

Set the function to y:

Rearrange to make x the subject:






Swap x and y:

Change y to the inverse of the function sign:


Rewrite g(x) as a fraction:





Therefore, as the inverse of f(x) ≠ g(x), the functions are NOT inverses of each other
Answer:
21. 123 22. 6.86 or 6/ 6/7 23. 90
Step-by-step explanation:
21. (6+4)² + (22+10÷2)
(10)² + (22 + 5)
100 + 27
127
22. (11+42-5) ÷ (11-4)
48 ÷ 7
6.85 or 6 6/7
23. (17-3) × (14 - 6) -22
14 × 8 - 22
112 - 22
90
Answer: the longest side of a triangle is always the opposite side of the largest angle
Step-by-step explanation:
Line segment DF ☺️
Answer:
105
Step-by-step explanation:
because all the angles added up have to = 180
60+15=75
75-180=105