Question

Help with Log Properties

Answer 1

First, try to solve for a, and tell me what you get. If you need help, just ask.

Answer 2

How do I set it up? I am totally confused on this one

Answer 3

Make a logarithmic graph with y-intercept 1.

Answer 4

The equation for the graph is y = 3^x.

Answer 5

Alright I just input it in my calculator

Answer 6

Now look at where y is about 0.5. What do you have?

Answer 7

The y-intercept?

Answer 8

Ignore what I said at first lol. a is about -0.631. Now solve the logarithms, substituting that for a.

Answer 9

Because \[\log_{a}3 \approx 0.5, 3^{a} =0.5,\] which is why we made that graph.

Answer 10

When I input it in it says ERROR NONREAL ANSWERS

Answer 11

Sorry, I was solving it as an antilog. Really, \[a \approx 9\] because \[a ^{0.5} = 3\], so plug a as 9 into your calculator. Again, sorry :P

Answer 12

Remember to round your answers to the nearest 10th

Answer 13

So the first one is .82?

Answer 14

Yes.

Answer 15

I meant round to the nearest 100th, sorry

Answer 16

So do you get it now?

Answer 17

One sec almost done

Answer 18

I think I put the wrong amount of decimal places

Answer 19

Because the only one I got correct was the last one lol

Answer 20

lol

Answer 21

How do you know if you got something right or wrong?

Answer 22

For some reason I got Part C wrong but the rest were right

Answer 23

I have three chances to get the question correct, if I get it correct it turns green

Answer 24

For Part C I got .95

Answer 25

I don't understand why it's wrong

Answer 26

I'm pretty sure that that's right, because \[\log_{9} 8 = 0.94639463036\approx 0.95 \]

Answer 27

Ugh it says the answer was .96 :(

Answer 28

So I got all of them right except Part C

Answer 29

Thanks for helping I really appreciate it

Answer 30

Can you help with another one?

Answer 31

That's weird, you should talk to your teacher about that, and maybe he can correct or further explain...

Answer 32

Do you know how to do this?

Answer 33

I'll try… I'm only in Algebra II...

Answer 34

I couldn't even figure it out on Mathway, I thought you simply plug in the numbers but it doesn't work. Almost all the answers are regular numbers like 23, 8, etc.

Answer 35

On my previous tries that's how I know what the answers will be like

Answer 36

For a, I got about 3.1543373037306295775285947507683823509222940831872816

Answer 37

I don't know what you have to round to, is it two digits again?

Answer 38

It's probably 3.15

Answer 39

Some were whole numbers

Answer 40

Do you mean the actual answer, or the parts (like a^-4)

Answer 41

The actual answer

Answer 42

The answers are a)=10 b)=6

Answer 43

I haven't done all of them yet, but a isn't.

Answer 44

c)=-0.20833333333333

Answer 45

I'll do c and see what I get.

Answer 46

I went ahead and jumped to the answer to see if you were doing it correctly

Answer 47

Can you wait a sec, I need to finish my homework. I'll be back in about 5 minutes.

Answer 48

Oh okay no problem

Answer 49

I'm going to go eat, so take your time

Answer 50

okay

Answer 51

I'm back. I think that I did a wrong, so I'm doing it again right now.

Answer 52

I did a again, and I got 12.920558458320164071748303635625470295773499596979904

Answer 53

Rounded, that is obviously 12.92

Answer 54

I'm back, sorry for taking so long

Answer 55

Thanks for all your help man I really appreciate it!

Answer 56

No problem!