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Veseljchak [2.6K]

3 years ago

6

[WILL MARK BRAINLIEST] How are logarithms used in the “real world?”

1 answer:

salantis [7]3 years ago

3 0

Answer:

Logarithms are used to model all sorts of things, especially growth and decay!

Step-by-step explanation:

One super-relevant example of how logs are used is in tracking the progress of the coronavirus. There are graphs up on worldometer that show both the linear number of cases and deaths and the log numbers - why? Because this gives us a better idea of when the curve will really flatten, or when it will reach its carrying capacity.

It's also used in things like radioactive decay, or where the growth rate is not constant.

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Which value of n makes the equation true? -1/2n = -8 <br>A.) -16 <br>B.) -4 <br>C.) 4 <br>D.) 16

AURORKA [14]

Answer:

D

Step-by-step explanation:

When we divide the entire equation by -1/2 to get rid of the coefficient of n we get n = 16.

7 0

3 years ago

Read 2 more answers

Find the second derivative at the point (1,2), given the function below. y^2-2=2x^3

vagabundo [1.1K]

Solution:

Given:

$y^2-2=2x^3$

Lets First Differentiate the given equation with respect to x

$\frac{d}{dx} ( y^2 - 2 ) = \frac{d}{dx} 2x^3$

$2y \cdot \frac{dy}{dx} - 0 = 6x^2$

$\frac{dy}{dx} = \frac{6x^2}{2y}$

$\frac{dy}{dx} = \frac{3x^2}{y}$ -----------------------(1)

this can be rewritten as

$\frac{dy}{dx} =3x^2y^{-1}$

Now differentiating again with respect to x

$\frac{d^2y}{dx^2} =6x^2y^{-1} + 3x^2 \cdot (-y^{-2}) \cdot \frac{dx}{dy}$

Now substituting (1) we get

$\frac{d^2y}{dx^2} =6x^2y^{-1} + 3x^2 \cdot (-y^{-2}) \cdot \frac{3x^2}{y}$

$\frac{d^2y}{dx^2} = \frac{6x^2}{y} + ( \frac{3x^2}{y^2}) \cdot \frac{3x^2}{y}$

$\frac{d^2y}{dx^2} = \frac{6x^2}{y} + ( \frac{9x^4}{y^3})$

At(1,2) $\frac{d^2y}{dx^2} = \frac{6(1)^2}{2} + ( \frac{9(1)^4}{(2)^3})$

$\frac{d^2y}{dx^2} = \frac{6}{2} + ( \frac{9}{8})$

$\frac{d^2y}{dx^2} = 3 + 1.125$

$\frac{d^2y}{dx^2} = 4.125$

5 0

3 years ago

2) Emily buys a toaster during the sale for 10% off. If Ellen pays $36, what was the original price?

Papessa [141]

Answer: $40

Step-by-step explanation:

36÷0.9=40

6 0

3 years ago

Which biconditional statement below is true?

Sindrei [870]

Answer: Angles are supplementary if and only if their sum is 180° is true.

Step-by-step explanation:

Test by making both parts negative: Angles are not supplementary if and only if their sum is not 180° This is also true.

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3 years ago

Write the slope-interest form of the equation that passes through (-2,6) with a slope of 3/2

iVinArrow [24]

Answer:

y = 3/2x+6

Step-by-step explanation:

3 0

2 years ago

Read 2 more answers