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Asked by Rayeesa | 29 May, 2018, 07:50: AM
Expert Answer
begin mathsize 16px style straight P comma space straight Q space and space straight R space are space the space collinear space points. straight P left parenthesis space minus 1 comma space 2 right parenthesis space comma space straight Q left parenthesis space 2 comma space minus 2 right parenthesis space and space Let space straight R space left parenthesis space straight x comma space straight y space right parenthesis. PQ space equals space square root of left parenthesis space 2 plus space 1 right parenthesis squared plus left parenthesis space minus 2 space minus 2 right parenthesis squared space end root space equals space 5 PR space equals space 15 comma space PQ space equals space 5 space then space QR equals space 10..... since space straight P comma space straight Q space and space straight R space are space the space collinear space points. rightwards double arrow Point space straight Q space divides space PR space in space the space ratio space 1 colon 2. By space cross space section space Formula comma straight Q left parenthesis space 2 comma space minus 2 right parenthesis space equals space left parenthesis space fraction numerator straight m subscript 1 straight x subscript 2 space end subscript plus space straight m subscript 2 straight x subscript 1 space end subscript over denominator straight m subscript 1 space plus space straight m subscript 2 end fraction comma space fraction numerator straight m subscript 1 straight y subscript 2 space plus space straight m subscript 2 straight y subscript 1 over denominator straight m subscript 1 space plus space straight m subscript 2 end fraction right parenthesis rightwards double arrow left parenthesis space 2 comma space minus 2 right parenthesis space space equals left parenthesis fraction numerator straight x space minus space 2 over denominator 3 end fraction space comma space fraction numerator straight y space plus space 4 over denominator 3 end fraction right parenthesis rightwards double arrow fraction numerator straight x space minus space 2 over denominator 3 end fraction space equals space 2 space comma space fraction numerator straight y space plus space 4 over denominator 3 end fraction space equals negative 2 rightwards double arrow straight x space equals space 8 comma space straight y space equals space minus 10. straight R space left parenthesis space straight x comma space straight y space right parenthesis space equals space straight R space left parenthesis space 8 comma space minus 10 space right parenthesis end style
Answered by Yasmeen Khan | 29 May, 2018, 12:14: PM
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ICSE 10 - Maths
The price of a sewing machine is Rs.40000.The wholesaler allows a discount of 10% on it to the shopkeeper.The shopkeeper sells the sewing machine to a customer at a discount of 5% on the marked price .GST is charged at the rate of 28% .The sales are intra-state. to find- 1] the price inclusive of tax paid by the shopkeeper 2]the tax paid by the wholeseller to the state government 3] the GST paid by the shopkeeper to the state government 4]total amount paid by the customer inclusive of tax.           Please Solve This
Asked by rashikulkarni28 | 18 Oct, 2022, 11:20: AM
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ICSE 10 - Maths
Reena goes to a shop to buy an item quoted at Rs 2000 .The rate of GST is 12 % on it.She asks the shopkeeper for a discount on the price of that item to such an extent that she has to pay Rs 2016 iclusive of GST.Find tge discount % on the price of that item.Pls solve this.
Asked by rashikulkarni28 | 15 Oct, 2022, 10:50: AM
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ICSE 10 - Maths
Prove that: sin2a+cos2a=1
Asked by abhidlw4321 | 03 Oct, 2022, 09:34: PM
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ICSE 10 - Maths
An AP 5,12,19,...has 50 terms.find its last term  
Asked by dr904265 | 26 Sep, 2022, 09:59: PM
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ICSE 10 - Maths
Calulate mode of the folowing data : 20 60 70 70 60 70 60 10 70 80 
Asked by nazimmunnikhan | 24 Sep, 2022, 06:47: PM
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ICSE 10 - Maths
When do we use s=n/2(a+l) formula and when do we use s=n/2 x {2a+(n-1)d} formula in the sum of a.p?
Asked by rashikulkarni28 | 14 Aug, 2022, 04:32: PM
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ICSE 10 - Maths
In arithmetic progression , when we use s=n/2 [2a+(n-1)d] then why use a=(n-1)d formula?
Asked by rashikulkarni28 | 14 Aug, 2022, 04:30: PM
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ICSE 10 - Maths
8/x+3-3/2-x=2
Asked by mohitmore008 | 31 Jul, 2022, 11:42: AM
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ICSE 10 - Maths
2x+2y=4 4x+y=2
Asked by nithishnandhan666 | 21 Jul, 2022, 09:27: PM
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ICSE 10 - Maths
Two squares have sides x cm and (x+5)cm .The sum of their areas is 697 sq.cm.-thanks (i)Express this as an algebraic equation in x. (ii)Solve this equation to find the sides of the squares.
Asked by rashikulkarni28 | 21 Jul, 2022, 08:36: PM
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