I dont really get it can someone help-?

28

Step-by-step explanation:

angels of a triangle add up to 180

so add the given angels to get 152

then subtract to get the missing angle 180-152= 28

the summ of the angles should be 180 degrees

so do 180-40 -112

tto get your answer

answeransweranswer iiis 28

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

dc=6 square root of 3 and ac is 12 square root 3

c and d

step-by-step explanation:

square root of 3/2 = 18/c

cross multiply to get 18*2=√3*c

36/√3 * √3/√3 = c

c= 36*√3/3

c=12√3