3 years ago

HELP QUICK PLSSS !!

Mathematics

1 answer:

9966 [12]3 years ago

6 0

Answer:

$\frac{n+8}{3}$

Step-by-step explanation:

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3 years ago

The force F between two charges Q1 and Q2 in a vacuum is proportional to the product of the charges and is inversely proportiona

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Answer:

<h3>The given statement "The force F between two charges $Q_1$ and $Q_2$ in a vacuum is proportional to the product of the charges and is inversely proportional to the square of the distance between two charges" is a <u>Coulomb's law.</u></h3>

Step-by-step explanation:

Given that "The force F between two charges $Q_1$ and $Q_2$ in a vacuum is proportional to the product of the charges and is inversely proportional to the square of the distance between two charges"

<h3>The given statement is a <u>Coulomb's law.</u></h3>

Coulomb's law states that the magnitude of the electrostatic force F of attraction or repulsion between the two point charges $Q_1$ and $Q_2$ is directly proportional to the product of the magnitudes of charges $Q_1$ and $Q_2$ and it is inversely proportional to the square of the distance between the two charges.

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2 years ago

InWrite the equation of the line that passes through (7, - 4) and (- 1, 2) slope- intercept form.

blondinia [14]

Answer:

General Equation of a Line

$General Equation \\(y - y_{1} )= m (x-x_{1}) \\Slope=m= \frac{x_{2}-x_{1} }{y_{2}-y_{1} } \\\\Given:\\p_{1}=(7,-4)\\p_{2}=(-1,2)\\Solution:\\m=(\frac{-1-7}{2-(-4)}) =\frac{-8}{6}\\y-(-4) = (\frac{-8}{6} )(x-7)\\y+4=\frac{-8x}{6} + 56\\y=\frac{-8x}{6} + 52 \\\\The\\ equation \\ is \\ y=\frac{-8x}{6} + 52$

Step-by-step explanation:

Find the slope first and then place the values on the general formula. The final step is to solve for y

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2 years ago

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3 years ago

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To make concrete it takes 8 parts crushed gravel, 7 parts water and 5 parts cement mix. A worker needs to make 220kg of concrete

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A) 8 + 7 + 5 = 20 parts
b) 220 kg ÷ 20 = 11
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2 years ago