Answer:
a = 9.849
b = 20.25
c = 491.03
Step-by-step explanation:
By using Pythagoras theorem in the right triangle BDC,
(Hypotenuse)² = (Leg 1)² + (Leg 2)²
BC² = BD² + DC²
a² = 9² + 4²
a = 
a = 
a = 9.8489
a ≈ 9.849 units
By mean proportional theorem,

AD × DC = BD²
b × 4 = 9²
b = 
b = 20.25 units
BY Pythagoras theorem in ΔADB,
AB² = AD² + BD²
c² = b² + 9²
c² = (20.25)² + 9²
c² = 410.0625 + 81
c = 491.0625
c = 491. 063 units
3 drops per minute
20 drops = 1 ml
How many minutes are there in a day?
60*24 = 1,440 minutes
1,440*3 = 4320 drops
How many milliliters?
4320/20 = 216 ml
19/20
19/20 = 0.95
0.9 < 0.95
Answer:
it's blurry, you need a new picture
Answer:
D
Step-by-step explanation: