D=Disc
13+10d=83
10d=83-13
10d=70
D=70/10
D=7
7+1=8
Maria purchased 8 CDs. Hope this helps!
Answer:
Yes
Step-by-step explanation:
You see that angle D and angle A are congruent, and you see that angle C and angle F are congruent. In addition, line AC is congruent to DF. This means that yes, those triangles are congruent because of the ASA postulate.
The answer is in the image. If you convert them to improper fractions, the division is easier. Like 2/3 + 1 = 5/3
2/3 of 33 is 22
so 22 +2 = 24
so 24x33=792
so the area is 792
Type in graphing calculator and figure it out.