Question

4=sqrtp-2

Answer 1

Start by squaring both sides.

Answer 2

i do not know how to do that, help?

Answer 3

\[4=\sqrt{p - 2}\]

Answer 4

yes thats it ^

Answer 5

\[(\sqrt{n})^2 = n, so (\sqrt{p-2})^2 = p-2\]

Answer 6

ok now what?

Answer 7

\[4 = \sqrt{p - 2}\]

\[(4)^2 = (\sqrt{p - 2})^2\]

Answer 8

so (4)^2 = ?

Answer 9

16

Answer 10

\[16 = p - 2\]

Answer 11

since:
\[ (\sqrt{p - 2})^2 \rightarrow p - 2\]

Answer 12

????

Answer 13

what?

Answer 14

im lost

Answer 15

@DDCamp showed you the rule

Answer 16

the \[\sqrt{?}\] and the ^2 cancel out so it just becomes p - 2

Answer 17

my answeer choices ar: a. \[\sqrt{6}\] b.36 c.3 d.6 can you help me get one of those? im way behind and math confuses me

Answer 18

and ohh ok so its 16=p-2

Answer 19

what do you do from there?

Answer 20

we want to get p by itself.

Answer 21

so we have to add 2 to both sides

Answer 22

try it

Answer 23

so 18=p ?

Answer 24

yea

Answer 25

now what?

Answer 26

is the answer 36?

Answer 27

did you write the question right?

or is it:

\[4 = \sqrt(p)-2\]

Answer 28

i wrote it write

Answer 29

hm so if it is like you said:
\[4 = \sqrt{p - 2}\]
then the answer is 18
----------------------------------------------
\[4 = \sqrt{18 - 2}\]
\[4 = \sqrt{16}\]
\[4 = 4\]
TRUE

Answer 30

so either you wrote the problem wrong OR the something is wrong with the choices cuz 18 is not a choice.

Answer 31

i dont have that answer to choose from

Answer 32

okaii?

Answer 33

i know.

Answer 34

can you help me with another problem?

Answer 35

i will try

Answer 36

\[\sqrt{q-9}=17\]

a.40
b.16
c.58
d.23

Answer 37

follow the same steps

Answer 38

so
\[\sqrt{q-9^{2}}=17^{2}\]
q-9=289?

Answer 39

not quite.

\[\sqrt{q - 9} = 17\]

use paranthesis

\[(\sqrt{q - 9})^2 = (17)^2\]

Answer 40

well you got the calculations right

Answer 41

but the notation is not correct :)

Answer 42

\[(\sqrt{q - 9})^2 = (17)^2\]
\[q - 9 = 289\]

Answer 43

so now what?

Answer 44

you want to get q by itself.
so what do you do to both sides to get rid of the -9?

you add 9 to both sides

Answer 45

\[q - 9 + 9 = 289 + 9\]
\[q = 289 + 9\]

Answer 46

so 298? now what... thats not one of the answer?

Answer 47

well thats the answer

Answer 48

im telling you, you might have written it wrong.

Answer 49

the answer was 58... and the first one was 36...

Answer 50

yeah i know it was 36 but you had wrote it wrong!