Question

NEED HELP! D: Algebra 2!

Answer 1

okay let's do this step by step
First thing you wanna do is square both sides
Do you know how to do that?

Answer 2

It was 2 haha.

Answer 3

Help me with this?

Answer 4

haha so im guessing you're okay with this question?
Do you understand how to do it? haha

Answer 5

No I don't understand how to do the one I just loaded..

Answer 6

okay so i believe you have to multiply both sides by ln
The e^(ln) will cancel on left side while on the right side it will be ln3
Your answer will end up being
x = ln3

Answer 7

so to explain properly
ln*e^(lnx) will result in x

Answer 8

Do you remember what e =? isn't it 2.758 or something..

Answer 9

2.718!

Answer 10

yeah but you dont need to know that for this question

Answer 11

e is just a variable :)

Answer 12

So is the answer 3*ln?

Answer 13

1.10?

Answer 14

I believe so

Answer 15

Nope the answer was 3 lol.

Answer 16

lol well dammit...wonder how.

Answer 17

remember what happens when you multiply exponents?

Answer 18

No..

Answer 19

you add exponents when it is in the form x^2 * x^3 which is x^5
notice it has to be the same base
now you multiply exponents when it is in the form (x^3)^2 which is x^6
so for this one it is (15^(1/7))^7 which is 15^((1/7)*7) = 15^(7/7) =?
what is the final answer?

Answer 20

15? o.o

Answer 21

good girk

Answer 22

girl*.....

Answer 23

Haha the answer is 15? That doesn't seem right..

Answer 24

it is trust me :P

Answer 25

It was haha:)

Answer 26

yay first correct answer!

Answer 27

Is this correct?

Answer 28

Or do I do the whole foil thing?

Answer 29

Or is it 3+9i?

Answer 30

it isnt right
You do the distribution properly so
(3 - i)(1+5i)
3*1 + 5i*3 + (-i)*1 +(-i)*5i
3+15i - i - 5i^2
3+14i -5(-1)
5+3 + 14i
8 + 14i

Answer 31

Oh yes yes.

Answer 32

lol do you get it?

Answer 33

Yes hahaha. but doesn't the last number become just a number without the i?

Answer 34

nope because that i represents root(-1) which is invalid in an equation
Hence why the i has to be there

Answer 35

I think you have to use ln for this one...

Answer 36

So..
28^x = 7
ln 28^x = ln 7
x * ln28 = ln 7
x = ln (7/28)
x = ln 1/4
Try that?

Answer 37

-1.39

Answer 38

yeah i hope so

Answer 39

No but oh well :P You know how to do these:)

Answer 40

it isnt the answer? lol how many do you have?

Answer 41

No but I need help with this one and I have a lot haha....

Answer 42

haha make this the last one?

Answer 43

Sure:)

Answer 44

lol same thing as the one with the 15
8/8 simplifies to 1
your answer is 7

Answer 45

Thank you for all your help!:)

Answer 46

no problem:)
if you wanna go for one more
im happy to help

Answer 47

ok let's do this step by step
Square both sides

Answer 48

x^2+4=9x+256???

Answer 49

leave everything inside the square root the same
you got the left hand side right
so x^2 + 4 = 3x + 16

Answer 50

now move all the values to the one side
so x^2 - 3x - 12

Answer 51

now factor
remember the other side = 0

Answer 52

I don't know how to do that...

Answer 53

Well I do I just can't remember.

Answer 54

okay so what you see up there is not factorable
Hence we have to use the quadratic equation

Answer 55

Ohhh okay..

Answer 56

ill get back to you on the answer

Answer 57

There are two answers...
Here:
5.27 and -2.27
I suggest asking someone to confirm this

Answer 58

i gotta eat now
so later

Answer 59

Well thank you very much for all your help!:D