Question

Solve 8x - 2 = 3 (2 points)
Answer

x ≈ 2.52

x ≈ 0.26

x ≈ 2.74

x ≈ 0.40

Answer 1

8x = 5
x = 5/8
x = .625
your options r wrong again

Answer 2

The answer is not one of the options. :\

Answer 3

It has to be!!!

Answer 4

I'd say 0.40?

Answer 5

When presented with an exponential equation such as 2x = 8, you solve for the variable by turning 8 into an exponential expression with a base of 2.

2x = 8
2x = 23

Answer 6

logb xy = y logb x

Answer 7

my answer is 100% correct...either ur question is wrong or ur teacher has typed something else

Answer 8

thank you for your input:)

Answer 9

It's machinely put

Answer 10

hold u shud have included logs before lol

Answer 11

a machine makes up these probs

Answer 12

yeah they're logs

Answer 13

\[8^{x-2} = 3\]
Is this the problem?

Answer 14

Ah, then the answer is x ≈ 2.52.

Answer 15

Start out by using the fact that: \(x^ax^b = x^{a+x}\)
\[8^{x-2} = 3\]
\[8^x8^{-2}=3\]
multiply both sides by \(8^2\)
\[8^x = 3*8^2 = 192\]

take the log base 8 on each side
\[\log_8{8^x} = \log_8 192\]
\[x = \log_8{192} \]

rewrite the right side to base 10 or e so you can put it in your calculator
\[x = \frac{\log 192}{\log 8} \approx 2.52\]

Answer 16

thank you everyone!!!!!!! that helps sooooo incredibly much!!!!!!!!!!!!!!!!!