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3 years ago

How much acetic acid is in a 5-liter container that is marked 80% acetic acid? How

Mathematics

1 answer:

Ksenya-84 [330]3 years ago

8 0

Answer:

1 liter I think?

Step-by-step explanation:

I don't know for sure but I am thinking it is 1 liter

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What is one thousand minus on hundred and ten

Alexeev081 [22]

Answer:

The answer is 890 . ...... :D

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3 years ago

Find the slope of eac 7) y=-2x + 5

NARA [144]

Answer:

Step-by-step explanation:

Compare with y = mx + c

y = -2x +5

Slope m = -2

4 0

3 years ago

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zheka24 [161]

Answer:

1.90.93

2.90.27

Step-by-step explanation:

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3 years ago

Extended Problems, Extraneous Solutions

diamong [38]

Answer:

1a. 2 is the solution

1b. -3 is because square root of 1 doesn't equal -1.

1c.-3

Step-by-step explanation:

$(x + 2 = \sqrt{3x + 10}$

Square both sides

$(x + 2) {}^{2} = 3x + 10$

Remeber perfect square Rule

$(x + y) {}^{2} = {x}^{2} + 2xy + {y}^{2}$

So now we got

$x {}^{2} + 4x + 4 = 3x + 10$

${x}^{2} + x + 4 = 10$

${x}^{2} + x - 6 = 0$

Factor into binomial.

$(x + 3)(x - 2) = 0$

So our solution is 3 or 2. However, let's check our work.

$- 3 + 2 = \sqrt{3( - 3) + 10}$

$- 1 = \sqrt{1}$

However square root of 1 is 1. It could be 1 but in Math, We only take the principal square root which is positive always. So -3 isn't a solution.

So let try 2.

 $2 + 2 = \sqrt{3(2) + 10} = 4 = \sqrt{16} = 4 = 4$ 

So this is indeed the solution.

Make up equation for 2 and 3. Ask me if you need help.

5 0

2 years ago

-6x+y=8 5x+y=8 using elimination method

asambeis [7]

Answer:

x=0, y=8. (0, 8).

Step-by-step explanation:

-6x+y=8

5x+y=8

-----------

-6x+y=8

-(5x+y)=-8

--------------

-6x+y=8

-5x-y=-8

-------------

-11x=0

x=0/-11

x=0

5(0)+y=8

0+y=8

y=8-0

y=8

7 0

4 years ago