Solve 2 - 3 cos x = 5 + 3 cos x for 0° ≤ x ≤ 180° a. 150° b. 30° c. 60° d. 120°

The correct answer is Option d : 120°

Step-by-step explanation:

First we bring all the cos x terms to one side

2 = 5 + 6 cos x

Now we bring all the numerals to one side

-3 = 6 cos x

- = cos x

∵ cos 60° = ∴ cos x = cos 60°

x = 60°

Now just flip over for the negative to get 180-60 = 120

∴ The answer is 120°.

a

step-by-step explanation:

when a number is between two straight lines it means the absolute value.

to find absolute value you need to know how many numbers is that number away from 0.

when finding absolute value the number will always come out positive

so absolute value of -3 is 3

absolute value of 3/2 is 3/2

absolute value of -2 is 2

absolute value of 3.5 is 3.5

absolute value of -1 is 1

now put these numbers in order:

a)   |-1|, |3/2|, |-2|, |-3|, |3.5|