Answer:
80°
Step-by-step explanation:
∠ABC= ∠ABD+∠CBD
as BD bisects ∠ABC, we have
∠ABC= 2*4x= 8x= 80°
Answer:
3/5
Step-by-step explanation:
60/100=3/5
GCF=20
20*3=60
60/20=3
20*5=100
100/20=5
Answer:
1/16, 1/16
Step-by-step explanation:
Perhaps you want to complete the square. You do that by adding the square of half the x-coefficient:
((1/2)/2)^2 = (1/4)^2 = 1/16
The number to complete the square is 1/16. It is added to both sides of the equation to give ...
x^2 +1/2x +<u>1/16</u> = 2 +<u>1/16</u>
_____
Written as a square, the equation is ...
(x +1/4)^2 = 33/16
5/2 9 divided by 45 is 5, and 4 divided by 2 is 2.
