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steposvetlana [31]
3 years ago
14

What is an equation of the line that passes through the point (2, 4 and is perpendicular to the line whose equation is 3y = 6x 3

?
Mathematics
1 answer:
Maru [420]3 years ago
3 0
Perpendicular line always have slopes that are negative reciprocals of one another.  Mathematically,

m1*m2=-1

So to be perpendicular to the line given, let's rearrange it to the point slope form of a line...

3y=6x ?3 (not sure what you wanted to type there)

anyway isolating y by dividing both side by three will leave 2x where 2 is the slope.

So for the other line to be perpendicular, m*2=-1, m=-1/2, now we have:

y=-x/2 +b, we can now you the point given to solve for b

4=-2/2 +b

4=-1+b

b=5 so

y=-x/2 +5 or more neatly

y=(10-x)/2
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djverab [1.8K]

Answer:

Find out the  how much chlorine is in the pool .

To prove

As given

The amount of chlorine in a swimming pool varies directly with the volume of water.

The pool has 2.5 milligrams of chlorine per liter of water.

i.e

2.5 milligrams of chorine = 1 litre of water

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As 1 gallons = 3.78541 litre (Approx)

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Now calculate chlorine in the pool for 30283.28 litres  of waters.

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3 0
2 years ago
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How to solve fx=|4x|+5
olganol [36]
Replace x with |4x|+5 and simplify
7 0
3 years ago
What multiplies to -12 but added together equals -10
Airida [17]
Let the two numbers be x and y, then,
xy = -12 . . . (1)
x + y = -10 . . . (2)
From (2), x = -10 - y . . . (3)
Putting (3) into (1), gives
(-10 - y)y = -12
-10y - y^2 = -12
y^2 + 10y - 12 = 0
y= \frac{-10\pm \sqrt{10^2-(4\times(-12))} }{2} = \frac{-10\pm \sqrt{148} }{2} = \frac{-10\pm 2\sqrt{37} }{2} = -5\pm\sqrt{37}

Therefore, the two numbers are -5+\sqrt{37} and -5-\sqrt{37}
4 0
3 years ago
Felicity put down $800 on a used car. She took out a loan to pay off the balance of the cost of the car. Her monthly payment wil
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Answer:

The answer is 2375

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800+175 * 9

800+1575

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I hope this helped!

3 0
3 years ago
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Cole said that 555 rounded to the nearest ten is 600. What is Cole's error? explain.
sattari [20]
He rounded it to the nearest hundred, not ten. Ten would be 560.

Hope this helps!
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