Homework Help > CBSE > Class 08 > Mathematics
Ask questions which are clear, concise and easy to understand.

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A triangle has 0 diagonals No of diagonal= n(n3)÷2 =3(33)÷2 =3(0)÷2 =0÷2 =0Thanks (4)

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A shape which has many linesThanks (0)

who was james millThanks (0)

Pleas you can solve that question
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Two digit number be 10 × 6 + 9 = 60 + 9 = 69Thanks (0)

Let once digit number be x Let tens digit number be y So the number be 10y + x  ( 1 ) A.T.Q On reversing the number be 10x + y 10x + y +27 = 10y + x 10x + y  10y  x = 27 9x  9y = 27 9 ( x  y ) = 9 × 3 x  y = 9 × 3 ÷9 x  y = 3  ( 2 ) x + y = 15  ( 3 ) ( 2 ) + ( 3 ) x  y + x + y = 3 + 15 2x = 18 x = 18 ÷ 2 x = 9 x + y = 15 9 + y = 15 y = 15  9 y = 6 Twodigit nuThanks (1)

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<div style="borderbottom:solid #a9e163 1.0pt; padding:0cm 0cm 2.0pt 0cm">
Simple Curve
</div>A curve is simple if it does not cross
A curve is a line which is not straight. Simple Curvein Mathematics is a curve which does not cross itself, while a Closed Curve is a curve which crosses itself.
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Plz tell me
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They both will complete the work in 5 daysThanks (1)

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In number theory, two integers a and b are said to be relatively prime, mutually prime, or coprime (also written coprime) if the only positive integer (factor) that divides both of them is 1. ... This is equivalent to their greatest common divisor being 1.Thanks (1)

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Put x=2 and y=0 then the question is 2×0=0Thanks (0)

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Perimeter of rectangle is 13 Width 11/4 Perimeter 2( L+b) 13 = 2( L+11/4) 13=2L+22/4) 1322/4=2L 5222whole lcm is 4=2L 30/4 =2L 8L =30 L =30/8=25/4Thanks (0)

You are in class 8....... Come up ...... Perimeter of rectangle is very basic

2(l+b)
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P=2(L+W)
where PPerimeter, LLength, WWidth
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BThanks (0)

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When a number itself multiplied 3 times it is a cube. Ex 3×3×3=27Thanks (0)

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A linear pair is a pair of adjacent, supplementary angles. Adjacent means next to each other, and supplementary means that the measures of the two angles add up to equal 180 degrees.
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Any real number which can be written in the form of P/q
where q is not equals to zero
is known as rational number.
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Let the speed of the steamer in still water be {tex}x \; km/hour{/tex}
so the speed in condition of down stream ={tex}x+1\; km/hour{/tex}
and speed in condition of upstream={tex}x1\; km/hour{/tex}
we know that {tex}speed= {distance\over time}{/tex}
distance = speed Xtime
In first condition and second Distance is equal so
{tex}(x+1)\times9=(x1)\times10{/tex}
{tex}\implies 9x+9=10x10{/tex}
{tex}\implies x=19 km/hour{/tex}
speed of the steamer in still water{tex}=19 km/hour{/tex}
and Distance={tex}(19+1)\times9=180km{/tex}
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Answer I want
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