Trigonometry for anyone who’s bored

x= 68.19°

Step-by-step explanation:

you can use inverse of cos(x)

() =68.19°

∴ x=68.19°

we can find the value of x using cos.

cos=adjacent side/hypotenuse

Using inverse cos, we can find the value of x

(Rounded)

Step-by-step explanation:

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.

-2

7 - 9 = -2

reversed:

-2 + 9 = 7