Answer:
BD = <u>1</u> unit
AD = <u>1</u> unit
AB = <u>1.6</u> units
AC = <u>1.6</u> units
Step-by-step explanation:
In the picture attached, the triangle ABC is shown.
Given that triangle ABC is isosceles, then ∠B = ∠C
∠A + ∠B + ∠C = 180°
36° + 2∠B = 180°
∠B = (180° - 36°)/2
∠B = ∠C = 72°
From Law of Sines:
sin(∠A)/BC = sin(∠B)/AC = sin(∠C)/AB
(Remember that BC is 1 unit long)
AB = AC = sin(72°)/sin(36°) = 1.6
In triangle ABD, ∠B = 72°/2 = 36°, then:
∠A + ∠B + ∠D = 180°
36° + 36° + ∠D = 180°
∠D = 180° - 36° - 36° = 108°
From Law of Sines:
sin(∠A)/BD = sin(∠B)/AD = sin(∠D)/AB
(now ∠A = ∠B)
BD = AD = sin(∠A)*AB/sin(∠D)
BD = AD = sin(36°)*1.6/sin(108°) = 1
Answer:
Your Answer is going to be C
35 percent got eaten.
To solve: you’d take the number of flowers eaten, 7. And you’d divide it by the overall number, 20. Then you’d get 0.35, which would be your percent.
1 meter is 100 centimeters so do 200÷10 what does that leavr you with ? 20
Answer: the population in 2005 is
199393207
Step-by-step explanation:
The formula for exponential growth which is expressed as
A = P(1 + r/n)^ nt
Where
A represents the population after t years.
n represents the periodic interval at which growth is recorded.
t represents the number of years.
P represents the initial population.
r represents rate of growth.
From the information given,
P = 173 million
A = 178 million
t = 1997 - 1995 = 2 years
n = 1
Therefore
178 × 10^6 = 173 × 10^6(1 + r/1)^2 × 1
178 × 10^6/173 × 10^6 = (1 + r)^2
1.0289 = (1 + r)^2
Taking square root of both sides, it becomes
√1.0289 = √(1 + r)^2
1 + r = 1.0143
r = 1.0143 - 1 = 0.0143
Therefore, in 2005,
t = 2005 - 1995 = 10
A = 173 × 10^6(1 + 0.0143)^10
A = 173 × 10^6(1.0143)^10
A = 199393207
