Which is irrational
a) -2.13 b) 0.3 c) square root of 7

C) square root of 7

Step-by-step explanation:

Irrational numbers are numbers which have endless decimals that do not repeat. You can't guess what the next decimal would be. For example, pi.

Both -2.13 and 0.3 have decimals, but they end at the first or second place.

let's solve your equation step-by-step.

4x+2=2x+12

step 1: subtract 2x from both sides.

4x+2−2x=2x+12−2x

2x+2=12

step 2: subtract 2 from both sides.

2x+2−2=12−2

2x=10

step 3: divide both sides by 2.

2x

2

=

10

2

x=5

step-by-step explanation:

-12 > a

step-by-step explanation:

-11 > 1 + a

subtract 1 from each side

-11-1 > 1-1+a

-12 > a