Question

2^x=10?

Answer 1

the answer is 2^333 repeating b/c it gives u 10.056107. and u basically get 10.

Answer 2

sorry i didnt explain it so well im not so good at that.

Answer 3

haha. its fine. I just need to know how to do it with log form

Answer 4

its for my test tomorrow and no calculator

Answer 5

?

Answer 6

i need to put 2^x=10 in log form, so log2^10=x

Answer 7

no calculator?!!!!!! oh wow im sorry. i take trig and we get graphing calcu;ators

Answer 8

but how would I solve from there?

Answer 9

Another way is just to convert from exponential to logarithmic.\[a^b = c \Rightarrow \log_a c = b\]

Answer 10

you still have to solve for x

Answer 11

thats what i did. but I need to find x

Answer 12

log rules :)

Answer 13

Just did.

Answer 14

and I don't know how to do that without a calculator

Answer 15

10 = 5+2

Answer 16

does that ring a bell?

Answer 17

l.o.l.

Answer 18

@nincompoop 10 = 5 + 2 = 7? Hao? Pls explan. OP pls.

Answer 19

log (10) = log(2) + log (5)

Answer 20

k

Answer 21

ni hao ma?

Answer 22

I'm good, thanks. @ktmart1n3 got it?

Answer 23

log rules :P

Answer 24

lol. sorta

Answer 25

Yeah, log rules!

Answer 26

so, my test to solve the equation. and it says 2^x=10 x=? what goes in the question mark space?

Answer 27

lol. is it going to be log(2)+log(5)?

Answer 28

no

Answer 29

\[\log_ax=\frac{ \log_bx }{ \log_ba }\]

Answer 30

change base formula
http://www.purplemath.com/modules/logrules5.htm

Answer 31

The above gives a pretty useful result, that is,\[\dfrac{1}{\log_x a}=\log_a x\]

Answer 32

so, if i want to answer this question for what x is, im going to need my calculator?

Answer 33

Do you need the answer in log form?

Answer 34

most likely in log form, an approximation would require calculator

Answer 35

ok

Answer 36

What is this shenanigans

Answer 37

If so, just use the following:\[a^b = c \Rightarrow \log_a c = b\]

Answer 38

alright, thank u guys.

Answer 39

Just make 'em right substitutions, and you're done with it.

Answer 40

again 10 = 5+2 :P