Me
which of the following is an irrational number?
a) square root 25
b) square root 36
c) square root 50
d) square root 64

C

Step-by-step explanation:

An irrational number cannot be expressed in the form

where a and b are integers

A

= ± 5 ← both integers

B

= ± 6 ← both integers

C

= 5 ← is irrational

D

= ± 8 ← both integers

step-by-step explanation:

because 1/3 is a fraction. we can tell because there is a divisor symbol between the 1 and the 3. if we were to add 2 fractions together, we would add the numerators, which is the number on top, but not the denominators, which is the number on the bottom

1/3+1/3=2/3

hope this !

second option

step-by-step explanation:

the measures of a triangle equal 180. use that to find x.

2x+3x+4x=180

9x=180

9x/9=180/9

x=20

now you know x, you know angle a is 40°, angle b is 60°, angle c is 80°.

because angle a is 40°, the first option doesn't work.

because angle b is 60°, the second option does work.

when you add angle a and b, you get 100°. complementary means it equals 90°, so the third option doesn't work.

when you add angle a and c, you get 120°, which is not 100.