The price of crude oil, per barrel, in the year 2006 was estimated at $66.02. There was a 9.5% increase in the year
1 answer:
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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
Answer:
The answer is 21
Step-by-step explanation: You substitue 3 for C and 4 for D and craete the equation so you add 3+4=7 and you get
which is 7 times 3 =21