Answer:
c.
Step-by-step explanation:
The inverse function returns the original value for which a function gave the output. A function that consists of its inverse fetches the original value

Just do this :
-1 + 30 - 5y
29 - 5y
or -5y + 29
the answer is C
Answer:
24 eight-digit code.
Step-by-step explanation:
Frequency : 0 : 4
2 : 2
4 : 2
In total there are Eight (8) numbers and 3 frequent number ( which are 0, 2, 4 )
∴ 8 × 3 = 24.
Part A
Your problem statement already shows you the conversion.
Bottles purchased: 5×10¹⁰
Bottles recycled: 8.3×10⁹
Part B
The ratio of bottles purchased to bottles recycled is
... (5×10¹⁰)/(8.3×10⁹) = 0.6×10¹ = 6.0
The number of bottles purchased is 6 times the number of bottles recycle.
Tan (x) = 0.8. To calculate the angle x, find the tan⁻¹ (0.8) = 38.7°