Solve for x: 2x^2 - 18 = 0

please give detailed steps!!

or

Step-by-step explanation:

Set up equation

Add 18 on both sides

Divide both sides by 2.

Take the square root of 9

Remeber square root solutions produce positive and negative Solutions.

pooopoopopoopop

step-by-step explanati∵∵∴∴on:

15%

step-by-step explanation:

use the table and count the number of guesses that has two correct answers.

the following are two correct answers

10010, 01100, 11000

a total of 3 numbers having 2 correct guesses out of 20 questions.

probability of getting 2 correct guesses = the number of questions getting 2 correct answers / total number of questions.

= 3/20

to convert it into percent multiply by 100, we get

= 3/20 * 100

= 15%

the answer is 15%

you.