You would do 3/4 of 20.
20 / 4 = 15
15 pens have black ink.
Hello :
the <span>coordinates </span> circumcenter for ∆DEF :
x = (1+7+1)/3
y = (1+1+5//3
x=3
y= 7/3
Answer:
APC is 90 degrees
Step-by-step explanation:
When lines intersect and are perpendicular. that means the angle of intersection is 90 degrees.
APC is 90 degrees
Answer is 7.
55+5X=90
5X=90-55
5X=35
X=35/5
X=7
