makennamarieb
makennamarieb makennamarieb
  • 01-07-2018
  • Mathematics
contestada

Solve
f(x)=15(0.2)^x
f(x)=40+1^x
X=years
Solve for x.
Thanks to whoever answers and best answer will be brainiest!

Respuesta :

konrad509
konrad509 konrad509
  • 01-07-2018
[tex]f(x)=15\cdot0.2^x\\ 0.2^x=\dfrac{f(x)}{15}\\ x=\log_{0.2}\dfrac{f(x)}{15}\\\\\\ f(x)=40+1^x\\ 1^x=f(x)-40\\ x=\log_1(f(x)-40)[/tex]
Answer Link

Otras preguntas

Find the midpoint of the line segment joining the points (7,1) and (-1,-1)
which one is x and y? ​
plz do ALL correct for brainiest
Please help!! What is the answer? What is the square rout of 88 rounded to the nearest 100th?
plz help right answer gets brainiest
Type the integer that makes the following addition sentence true for Brainliest!!!!!!!!!!
-2 x 3/7 please help me!
list any fuel uses of heat​
Help me with this one pls
Write a narrative to develop real experiences using effective technique, revelant details and well structured event sequences?