Answer: 
Step-by-step explanation:
Since, By the given diagram,
In quadrilateral ABCD, all angles are right angles ⇒ DC = AB = 15 cm and CB = DA
Also, In triangle DFA,

⇒ 
⇒ 
⇒ 
Now, In triangle, DEC,

⇒ 
⇒ 
⇒
⇒ 
⇒ 
⇒ 
when you multiply sum by a number like (7+9)plus 5 it is the same as multiplying each added by that factor (7time5)plus (9time5)
In order to derive the base of a triangle from its area, you need its height as well.
In fact, if we solve the area formula for the base, we have

So, the base length would be

where h is the height relative to the base you're interested in.
Answer:
y=1/3 + 3
Step-by-step explanation:
y= 1/3x + b
(1) = 1/3(-6) + b
1 = -2 +b
3 = b
y=1/3 + b
Answer:
c+9
Step-by-step explanation:
Key word SUM means addition