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If the product of two roots of the equat...

If the product of two roots of the equation `x^2-3x+k=10` is -2 then k=

A

`-2`

B

`-8`

C

8

D

12

Text Solution

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UNITED BOOK HOUSE-KANACHI HIGH SCHOOL-EXERCISE
  1. Compound interest and simple interest of sun of money at the same rate...

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  2. If the product of two roots of the equation x^2-3x+k=10 is -2 then k=

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  3. ABCD is a cyclic quadrilateral. If angleA = 100^@ then angleC=

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  4. If the length of the shadow of a vertical pole on the horizontal groun...

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  5. If the numerical values of volume and curved surface area of a sphere ...

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  6. If the mean of 6,7,x,8,y,16,16 is 9, then.

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  7. If the total interest of some money in y years at the rate of simple i...

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  8. Fill in the blanks Condition of two equal roots which are in opposi...

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  9. Fill in the blanks Circumradius of a right angled triangle is half o...

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  10. Fill in the blanks If sin theta+cosec theta = 2, then cos theta=.

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  11. The volume of a solid sphere of diameter R is

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  12. Fill in the blanks Mode of 8,10,8,8,3,2,1,3,2,8,10,8 is.

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  13. Write True or False In a partnership business, profit share will be ...

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  14. x^3y, x^2y^2 and xy^3 are in continued proportion or not.

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  15. If two circles of radii 7 cm and 3 cm touch each other extermally, the...

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  16. Write True or False If 0^@lethetale90^@ then cos theta> cos^2 theta.

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  17. Write True or False If the length of radius of a cylinder is half th...

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  18. Write True or False If the mean of frequency distribution is 10 sumf...

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  19. If the compound interest of some money for 2 years at the rate of comp...

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  20. In a partnership business Ram and Hori invest Rs 1,200 & Rs 800 respec...

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