Question

Which is an irrational number?

Answer 1

what r ur chooses?

Answer 2

Hold On...

Answer 3

k

Answer 4

ok

Answer 5

A sqrt{49}
B sqrt(80)
C sqrt(9)
D sqrt(1)

Answer 6

c

Answer 7

and an irrational number cannot be written as a simple fraction and its a real number

Answer 8

\[\sqrt{49} \sqrt{80} \sqrt{9}\sqrt{1}\]

Answer 9

@romans10 Is it C?

Answer 10

b has a decimal gong on and on

Answer 11

no because sqrt9 = 3, 3 is rational

Answer 12

So the answer is B?

Answer 13

Irrational Number

more ...

A real number that cannot be written as a simple fraction - the decimal goes on forever without repeating.

Answer 14

yes its b

Answer 15

Thanks!

Answer 16

np

Answer 17

The numbers 20, 21, and c are a Pythagorean triple.
What is the value of c?
A. 29
B. 22
C. 25
D. 41

Answer 18

c^2 = 20^2 + 21^2

work out the right hand side
then to find c take the square root using your calculator

Answer 19

@romans10 How do I do that?

Answer 20

a number that cannot be expressed in p/q (fraction) form

Answer 21

Hello?

Answer 22

the answer is b as it does not have a proper square root

Answer 23

oh for that use the pythagorean formula

Answer 24

oh for that use the pythagorean formula\[base^2 + height^2 = hypotenuse^2\]

Answer 25

sorry instead of height its perpendicular

Answer 26

Thanks!

Answer 27

b
it goes 20,21,22