What is the solution to 3x² - 2x+4=0
1 answer:
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Answer:
(a) 6.2843 billion
(b) 6.8716 billion
Step-by-step explanation:
Since there is a constant growth rate of 1.5% per year, and the population in 2002 was 6.1 billion people. The general equation for the total world population, in billions, after 2002 is:
With t being the time, in years, after 2002.
a) What was the population in 2004?
b) What was the population in 2010?
Answer:
<u>56.5 ft</u>
Step-by-step explanation:
See the attached figure which represents the explanation of the problem.
We need to find the length of the tree to which is the length of AD
From the graph ∠BAC = 90° and ∠ABD = 76°, AB = 18 ft
At ΔABD:
∠BAD = ∠BAC - ∠DAC = 90° - 4° = 86°
∠ADB = 180° - ( ∠BAD + ∠ABD) = 180 - (86+76) = 180 - 162 = 18°
Apply the sine rule at ΔABD
∴
∴ 18/sin 18 = AD/sin 76
∴ AD = 18 * (sin 76)/(sin 18) ≈ 56.5 (to the nearest tenth of a foot)
So, The length of the tree = 56.5 ft.
<u>The answer is 56.5 ft</u>
Hello there!
Explanation:
↓↓↓↓↓↓↓↓↓↓↓↓
First you had to switch sides.
Then you divide by -4 from both sides of the equation.
Simplify
Next you had to add by 5 from both sides of the equation.
Simplify
You can also divide by 2 from both sides of the equation.
Simplify it should be the correct answer.
<u><em>Answer⇒⇒⇒⇒⇒r=-9</em></u>
Hope this helps!
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-Charlie