Answer:
4
Step-by-step explanation:
use the Pythagoras' theorem
formula for an ABC triangle( right angled)
AB is height
BC is hypotenuse
CA is length
= 
+ 
in your case
AB is 7
BC is 8
CA is unknown so we write x
=
+
64=49+
64-49=
15=
=x
3.87=x
4=x
There you go. The file's down there.
Answer:
12x-30 is the answer simplified
Step-by-step explanation
theres no much of a process
The first y is actually -30 bc a negative times a positive is always a negative
-30
45
0
-10
-40
(:
A= base(one) + base(two)/2 * height
A= 9+14/2 * 11
A= 23/2 * 11
A= 11.5 * 11
A = 126.5 inches
