In how many ways can 9 people be seated if 3 chairs are available
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2009
What is the mean deviation of x, 2x, x+1 and 3x. If their mean is 2?
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2009
5, 8, 6 and k occur with frequency 3, 2, 4, and 1 respectively an d have a mean of 5.7. Find the value of k
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2009
The pie chart above represents 400 fruits on display n a grocery store. How many apples are in the store
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2009
No. of Days123456No. of students202x6040x50The distribution above shows the number of days a group of 260 students were absent from school in a particular term. How many students were absent for t least four days in the…
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2009
Evaluate ∫sec2θ dθ
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2009
The distance travelled by a particle from a fixed point is given as s = (t3 - t2 - t + 5)cm. Find the minimum distance that the particle can cover from the fixed point.
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2009
What value of s will make the function x(4-x) a maximum
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2009
If s = (2 + 3t)(5t - 4), find s/dt when t = 4/5 secs
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2009
Find the value of sin 45\(^{\circ}\) - cos 30\(^{\circ}\)
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2009
If y = 3 cos 4x, dy/dx equals
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2009
What is the value of r if the distance between the point (4,2) and (1,r) is 3 units?
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2009
What is the value of p if the gradient of the line joining (-1,p) and (p, 4) is 23?
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2009
Find the locus of a particle which moves in the first quadrant so that it is equidistant from the lines x = 0 and y = 0 (where k is a constant)
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2009
Find the radius of a sphere whose surface area is 154 cm2
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2009
A chord drawn 5 cm away from the center of a circle of radius 13 cm. Calculate the length of the chord
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2009
If the hypotenuse of a right angle-triangle isosceles triangle is 2cm. What is the area of the triangle?
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2009
In the figure above , Ts//xy and XY = TY, ∠SYZ = 34\(^{\circ}\), ∠TXY = 47\(^{\circ}\), find the angle marked n
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2009
A regular polygon has 150\(^{\circ}\) as the size of each interior angle. How many sides does it have?
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2009
Find the acute angle between the straight lines y = x and y = √3x