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3 years ago

What is an equation of the line that passes through the point

Mathematics

1 answer:

Ahat [919]3 years ago

3 0

Step-by-step explanation:

Parallel lines have the same slope.

x -3y = 21

y = (21-x)/-3 ==== y = 1/3x -7

Substitute the values,

y = mx + c

5 = (1/3)(-6) + c

5 = -2 + c

c = 7

Thus, the equation is y = 1/3x + 7

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3 years ago

Need help with this. Hope someone can help

Triss [41]

Hi,

Let me help you with this problem.

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3 years ago

Find the area of the trapezoid.

bija089 [108]

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2 years ago

How many grams NaCl would you use to make a 4M solution in 100ml

MatroZZZ [7]

Answer:

Amount of NaCl = 23.376 gram

Step-by-step explanation:

Given:

Molarity = 4M

Volume of solution = 100 ml

Find:

Amount of NaCl

Computation:

Molar mass of Na = 22.99 g/mole

Molar mass of Cl = 35.45 g/mole

Molar mass of NaCl = 22.99 + 35.45

Molar mass of NaCl = 58.44 g/mole

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4 = [moles of solute / 100]1000

Moles of solute = 0.4

moles of solute = Mass of solute / molar mass

0.4 = Amount of NaCl / 58.44

Amount of NaCl = 23.376 gram

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2 years ago