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2 years ago

6. Find the coordinates of A if M-1, 2) is the midpoint of AB and B has coordinates of (3.-5).

Mathematics

1 answer:

AlekseyPX2 years ago

4 0

Answer:

A(-5,9)

Step-by-step explanation:

Let A(a,b)

Since M is the midpoint then of A(a,b) and B(3,-5) then

M( (a+3)/2 , (b-5)/2)

But it is given that M(-1,2)

So (a+3)/2 = -1 which implies a=-5

and (b-5)/2=2 which implies b=9.

Therefore A(-5,9)

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Ivanshal [37]

Answer:

Check below

Step-by-step explanation:

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2) When it comes to area, the "ladder scheme" remains valid but now we'll multiply or divide by

$10^3$

Bear in mind these useful relations:

$1litre =\frac{1}{10^3}m^{3}$

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$a) 3.7 l=3700 cm^{3}\\b)29.6 dm^{3}\\29.6 dm^{3} \rightarrow 29.6\times10^{3} cm^3=29.6\times10^{3} ml = 29.6\times10^{2} cl \:or\:2960 cl\\c)8.1l=8100 cm^{3}\\d)5l=\frac{5}{10^{-3}} m^{3}\\e)5.2 cl=52ml=52 cm^{3}=52\times10^{3}=52000 \:mm^{3}\\f)375 ml=375 cm^{3}\\g) 1300 cm^{3}=1300 ml=13 dl\\h) 8.6 ml= 8.6 cm^{3}\times\: 10^{3}=8600 mm^{3}\\i) 51.8\times 10^{11} l \rightarrow 51.8\times 10^{-11}km^{3}$

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3 years ago

Y = 2x + 1 y = 3x - 1

yuradex [85]

Answer:

i think the answer is B

Step-by-step explanation:

5=6-1

5=5

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3 years ago

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Pavlova-9 [17]

Answer:

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Step-by-step explanation:

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2 years ago

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Masteriza [31]

The solution to the answer is as follows:

0votesanswered Aug 8, 2015 by Shashi Kumar Evangelist (3,082 points)total coins 30
1 rupee coins 20
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1 rupee coin probability 20C11
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ans should be = 20C11/30C11 = 2/3
I hope my answer has come to your help. God bless and have a nice day ahead!

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