Suppose Sine (x) = four-fifths and cos(x) < 0. What is the value of cos(2x)?

B. -7/25

Step-by-step explanation:

Edge :))

y=mx+b is the final answer!   : )

3< x< 5

step-by-step explanation:

|x - 4| < 1

there are two solutions, one positive and one negative.   remember to flip the inequality when taking the negative solution

x-4 < 1       x-4 > -1

add 4 to each side

x-4+4 < 1+4       x-4+4 > -1+4

x< 5                 x> 3

3< x< 5