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3 years ago

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The population of Oak is increasing at a rate of 2% per year. If the population is 64,242 what will it be in three years answer

1 answer:

Alekssandra [29.7K]3 years ago

4 0

Answer: 68096.52; rounded to 68097

Step-by-step explanation:

64242 x 2/100 (because 2% = 0.02 = 2/100) = 1284.84

So the population of Oak is increasing at a rate of 1284.84 people per year.

But in three years?

1284.84 x 3 = 3854.52.

64242 + 3854.52 = 68096.52.

The population in three years will be 68096.52

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3 years ago

One of the roots of the quadratic equation dx^2+cx+p=0 is twice the other, find the relationship between d, c and p

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Answer:

$c^2 = 9dp$

Step-by-step explanation:

Given

$dx^2 + cx + p = 0$

Let the roots be $\alpha$ and $\beta$

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$\alpha = 2\beta$

Required

Determine the relationship between d, c and p

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Divide through by d

$\frac{dx^2}{d} + \frac{cx}{d} + \frac{p}{d} = 0$

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