Answer:
36
Step-by-step explanation:
The angle b is a right angle which is divided into 2. So, each angle would measure 45 degree. (90 / 2 = 45)
tan 45 = 1
\AD\ = 100 - 64 = 36
to find x , remember SOCAHTOA
tan would be used because we have the vale of the opposite angle and we want to find the value of the adjacent angle
Tan 45 = opposite / adjacent
1 = 36/x
x = 36
Answer:
-2
Step-by-step explanation:
y=-1-2x
by substitution
-1-2x=1/2x+4
5/2x=-5
x=-2
Answer:
A
Step-by-step explanation:
75% is 3/4. 20:4*3=15. Which means that he answered 15 questions. 15 out of 20.