Answer:
x=1
Step-by-step explanation:
3^ (3x+1) = 81
Rewrite 81 as a power of 3
3^4
3^ (3x+1) = 3^4
Since the bases are the same, the powers are the same
3x+1 =4
Subtract 1 from each side
3x+1-1 =4-1
3x=3
Divide by 3
3x/3 = 3/3
x =1
Answer:
262 m^3 is the volume of the cone
If your looking looking for the y-intercept its y=-3
I don't really understand what you are asking though....
4 5/12 you just add the fractions
(x+4)
Hope this helps! If it is wrong, or is lacking clarification, don't hesitate to ask for help!