Answer:
8.9
Step-by-step explanation:
1. DE:BC=AD:AB
2. AD=AB+BD, but according to the conditions AB=5, then
AD=5+BD.
3. after the substitution DE=16; BC=9; AB=5 and AD=5+BD into the formula:
16:9=(5+BD):5;

BD=80/9 - 5≈3.9.
4. if AD=AB+BD, then AD=5+3,9=8,9
Answer:

Step-by-step explanation:
we know that
The volume of a cylinder is equal to

we have
----> the radius is half the diameter
substitute the values

Answer:
X=70
Step-by-step explanation:
70 + 75 + 35 =180
x + x+5 + x-35
Answer:
12
Step-by-step explanation:
count to 69 and you got 12 lay ups