Question

i need help

Answer 1

\[\sqrt{21-x} when x=9\]

Answer 2

\(\sqrt{21-x}\)

when x = 9?

Answer 3

yea

Answer 4

can u help

Answer 5

so put 9 for x

\(\sqrt{21-9}\)

Answer 6

subtract

Answer 7

ok

Answer 8

then what

Answer 9

what did you get?

Answer 10

12

Answer 11

\(\sqrt{12}\)

you need to simplify

what are the factors of 12?

Answer 12

um i dont know

Answer 13

which 2 numbers multiplied together gives you 12?

Answer 14

um

6*2

Answer 15

that's one :)

but 2 nor 6 are perfect squares

any other 2 numbers?

Answer 16

i cant think of any

Answer 17

how about 4 and 3?

Answer 18

yea

Answer 19

do you know \(\sqrt{4}\)?

Answer 20

is that just 4*4

Answer 21

no x^2 = 4

what number multiplied by itself = 4?

Answer 22

o ok
2

Answer 23

so how do i get the answer to my problem

Answer 24

is the answer 4

Answer 25

so \(\sqrt{4}=2\) and \(\sqrt{3}\) stays \(\sqrt{3}\)

which means your final answer is

\(2\sqrt{3}\)

Answer 26

ok

Answer 27

have a few more so can u help me with thoes

Answer 28

please

Answer 29

sure

Answer 30

ok

Answer 31

\[\sqrt{x+21} when x=4\]

Answer 32

21 + 4

Answer 33

25

Answer 34

\(\sqrt{25}\) is a perfect square

what number multiplied by itself = 25?

Answer 35

5

Answer 36

that's your answer

Answer 37

o thanks i have 2 more

Answer 38

\[\sqrt{21-x when x=9} round \to the nearist hunderth\]

Answer 39

11

Answer 40

what are the factors of 11

Answer 41

only 11 and 1

Answer 42

ok
then what

Answer 43

they said round to the nearest hundredth so use a calculator

\(\sqrt{11}=3.1366. . . . ≈ 3.14\)

Answer 44

ok is that the answer

Answer 45

ye

Answer 46

that is not there but

Answer 47

3.46 is

Answer 48

any other?

Answer 49

1.73

Answer 50

3

Answer 51

4

Answer 52

thoes are the answers

Answer 53

then choose the one closest to 3.14

Answer 54

well so would that be 3

Answer 55

u there

Answer 56

2 one more

Answer 57

\[3+\sqrt{x+19-\sqrt{2 }} when x=6\]

Answer 58

not sure about this one :/