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If ui = (xi-25)/10 sumfiui = 20 and sumf...

If `u_i = (x_i-25)/10 sumf_iu_i = 20` and `sumf_i = 100`, find `barx`.

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UNITED BOOK HOUSE-HOOGHLY COLLIGIATE SCHOOL-EXERCISE
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  2. Find the volume of the largest solid cone that can be cutout frm a sol...

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  3. If ui = (xi-25)/10 sumfiui = 20 and sumfi = 100, find barx.

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  10. If (x^2-yz)/a=(y^2-zx)/b=(z^2-xy)/c , show that (a+b+c)(x+y+z)=(ax+by...

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  12. State and Prove Pythagoras theorem.

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  18. In a circle, if an arc of 220 cm length subtends and angle of measure ...

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  19. If sin theta+cos theta = 7/5 then sin theta cost theta = 12/25, find t...

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  20. Find the value of (sin 25^@)/(sec65^@)+(cos 25^@)/(cosec 65^@).

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