75.00
15.00
8.66
3.87
Correct answer is B
Note that \(\frac{10\sqrt{3}}{\sqrt{5}} = \frac{10\sqrt{3}}{\sqrt{5}} \times - \frac{\sqrt{5}}{\sqrt{5}}\)
= \(\frac{10\sqrt{15}}{\sqrt{5}} = 2\sqrt{15}\)
hence, (\(\frac{10\sqrt{3}}{\sqrt{5}} - \sqrt{15}\))2 = (\(2\sqrt{15} - \sqrt{15}\))2
= (\(2\sqrt{15} - \sqrt{15}\))(\(2\sqrt{15} - \sqrt{15}\))
= 4\(\sqrt{15 \times 15} - 2\sqrt{15 \times 15} - 2\sqrt{15 x 15} + \sqrt{15 \times 15}\)
= 4 x 15 - 2 x 15 - 2 x 15 + 15
= 60 - 30 - 30 + 15
= 15
The distance traveled by a particle from a fixed point is given as s = (t\(^3\) - t\(^2\) - t +...
A boy leaves station X on a bearing of 035° to station y which is 21km away. He then travels to ...
In the diagram above angle LNM and angle YNZ are represented by g and h respectively. Find &ang...
Using the cumulative frequency curve. What is the 80th percentile? ...
Age in years 7 8 9 10 11 No of pupils 4 13 30 44 9 The table above shows...
Simplify \(7\frac{1}{12}-4\frac{3}{4}+2\frac{1}{2}\) ...
In the diagram above, PQ is the tangent to the circle RST at T.|ST| = ST and ∠RTQ = 68o. Find &a...