prissyphiri
prissyphiri prissyphiri
  • 11-07-2021
  • Mathematics
contestada

what is x in 8 ^ (x - 1 ) = 16 ?

Please help. ​

Respuesta :

wegnerkolmp2741o
wegnerkolmp2741o wegnerkolmp2741o
  • 11-07-2021

Answer:

x=7/3

Step-by-step explanation:

8 ^ (x - 1 ) = 16

We need to rewrite 8 as 2^3  and 16 as 2^4

2^3 ^ (x - 1 ) = 2^4

We know that a^b^c = a^(b*c)

2^(3(x-1)) = 2^4

The bases are the same so the exponents are the same

3(x-1) = 4

Distribute

3x-3 = 4

Add 3 to each side

3x-3+3 = 4+3

3x = 7

Divide by 3

3x/3 = 7/3

x=7/3

Answer Link

Otras preguntas

A pigeon learns to peck at a disk lighted green to receive reinforcement but not at a disk lighted red. This means that, for the pigeon, the color of the disk i
A humpback whale van eat up to 2.5 tons each day. What is the amount of food in kilograms
Cherie bought a dress and paid the sale price of $96. The dress had been reduced 20% for the sale. What was the original price for the third dress.
What is the radius and diameter?
Word problem. Please help if can! Ashley has a nail design business. The paints and materials cost $7 for each customer. She also pays $750 a month to rent spac
What is 74000000 in scientific notation
Is the osmotic pressure of a 0.10 M solution of NaCl greater than, less than, or equal to that of a 0.10 M solution of KBr?a. equal tob. greater thanc. less tha
Find the values of A and B
13 Coleman, Margaret. The American Capture of Fort George, Ontario (1977) Vincent, Elizabeth. The Guardhouse at Fort George, Ontario (1977)
Choose the more concise sentence a Turn left at the green house. b Turn left at the green colored house.