2. Solve for z and express your answer in interval notation: 10 – 4z < 20

z > -5/2

Step-by-step explanation:

Since both sides are divided by a negative number, the equality is switched.

10 - 4z < 20

(10 - 4z) - 10 < 20 - 10

-4z < 10

(-4z)/-4 < 10/-4

z > -5/2

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.

60%