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3 years ago

Write the equation of a line that is perpendicular to 3x-6y=12 and passes through the point (-4,3).

Mathematics

1 answer:

Liono4ka [1.6K]3 years ago

4 0

Answer:

y=-3x+3 I think

Step-by-step explanation:

opposite reciprocal and use the new points y value?

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What is the total area of the glass in the pyramid arena? Explain how you got the answer please.

Blababa [14]

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Step-by-step explanation:

Base: 600 x 600 = 360,000

600 x 440 x 2 (there is 4 triangles and 2 makes 1 square. So there is 2 pairs so times 2)= 528,000

360,000 + 528,000= 888,000

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3 years ago

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3 years ago

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3 years ago

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How many liters of 60% alcohol solution should be added to 40 liters of a 20% alcohol solution to make a 50% solution?

kolbaska11 [484]

Answer:

120 liters of 60% alcohol solution is needed

Step-by-step explanation:

Let's assume

x liters of 60% alcohol solution is added

so, we get solution as

$=\frac{60}{100}\times x$

$=0.6x$

we are given

40 liters of a 20% alcohol solution is

$=40\times\frac{20}{100}$

$=8$

so, total alcohol solution is

$=8+0.6x$

now, we can find total solutions

total solutions is

$=x+40$

now, it is making 50% solution

so, we get

$\frac{8+0.6x}{x+40} =\frac{50}{100}$

now, we can solve for x

$\left(8+0.6x\right)\cdot \:100=\left(x+40\right)\cdot \:50$

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$10x=1200$

$x=120$

So,

120 liters of 60% alcohol solution is needed

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3 years ago

PLS HELP :(<br><br> Solve the inequality and graph the solution on the line provided.

Travka [436]

Answer:

$x\leq -1$

Step-by-step explanation:

1. $7x\leq 7-14$

2. $7x\leq -7$

3. divide both sides by 7

4. $x\leq -1$

Closed circle on -1 and the line goes to the left

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3 years ago

Write the equation of a line that is perpendicular to 3x-6y=12 and passes through the point (-4,3).​

Write the equation of a line that is perpendicular to 3x-6y=12 and passes through the point (-4,3).