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4 years ago

What is y = -2x - 9 I am confused.

Mathematics

1 answer:

luda_lava [24]4 years ago

4 0

Answer:

you can not solve this, its an equation for slope.

the slope is -2x and the y intercept is -9

Step-by-step explanation:

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4 years ago

Which digits repeat in the decimal number 28.1543? 1543 543 3 43

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Answer:

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3 years ago

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Step-by-step explanation:

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3 years ago

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nata0808 [166]

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3 years ago

Which two of the following are applications of the Logarithmic model? *

stellarik [79]

Question:

a. College GPA

b. Richter Scale

c. Acidity/Alkalinity

d. Compound Interest

e. Amortization Schedule

Answer:

The correct two options are;

b. Richter Scale

c. Acidity/Alkalinity

Step-by-step explanation:

Here we have

b. The Richter Scale, given by the following relation;

$M = log(\frac{I}{I_0} )$

M = Earth quake magnitude

I = Earthquake intensity

I₀ = Earthquake intensity of magnitude 0

Comparing two Earthquakes, A and B, we have

$M_A - M_B = log(\frac{I_A}{I_B} )$

c. Acidity/Alkalinity are determined by the pH of the solution, which is the negative logarithm of the hydrogen ion concentration

pH = -log₁₀ [H⁺].

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3 years ago