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viktelen [127]
3 years ago
11

C) If C.P. = Rs 660, loss percent = 5% find S.P.

Mathematics
1 answer:
timurjin [86]3 years ago
7 0

Answer:

Hope this solution helps you

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What equation represents a parabola with a focus of (0,4) and a directrix of y=2
scZoUnD [109]
We know that

Any point <span>(x,y)</span> on the parabola is equidistant from the focus and the directrix

Therefore,

focus (0,4) and directrix of y=2

<span>√[<span>(x−0)</span></span>²+(y−4)²]=y−(2)

<span>√[x</span>²+(y-4)²]=y-2

x²+(y-4)²=(y-2)²

x²+y²-8y+16=y²-4y+4

x²=4y-12-----> 4y=x²+12----->y= (x²/4)+3


the answer is

y= (x²/4)+3


7 0
3 years ago
What's three fourths times twenty eight equal?
Hoochie [10]
Hi , 3/4 times 28 equals to 84/4
28 is equivalent to 28/1
we just multiply straight across
28 x 3 equals to 84
4 x 1 equals to 4
 
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5 0
3 years ago
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Shows that n+1Cn= mCn-1 + mCn
ArbitrLikvidat [17]

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I think the Question is incorrect; the left hand side of the equation should be

m+1Cn

Step-by-step explanation:

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2 years ago
Im bored in this quarentine and have a lot of work to catch up on. One of my math problems is "How much water should be added to
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Answer:

20/3  ounces of water is added.

Step-by-step explanation:

how many ounces of pure water should be added to 20 ounces of 40% solution of muriatic acid to obtain a 30% solution of muriatic acid?

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The acid is 40% of 20 ounces = 8 ounces.

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That same 8 ounces is to be 30%. The water will be the other 70%.

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We started with 20, so 80/3 - 20 = 20/3

20/3 ounces of water is added.

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What is described as a line, segment or Ray that bisects a segment at a right angle?
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