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chrystabelle

Questions (15)

Give the equation of the hyperbola is 9x^2-4y^2=36.find(i)center and vertices (ii)foci and eccentricity (iii)equation of
1. 1 answer
2. 787 views
find the limit as x approaches zero for (2+x)^3 -8/x
1. 2 answers
2. 462 views
1.IF Vector OA =2i + 3j – k, vectorOB = i – 2j + 3k determine the value of vectorS ,OA X OB
1. 0 answers
2. 525 views
If f(x) = x-1/2x^2 - x -3.Find(i)f(2) (ii) x if f(x)= 0 (iii)values of x that are not in the domain of the function
1. 1 answer
2. 394 views
If f(x)=x-1/2x^2-x-3.Find(i)f(2) (ii)x if f(x)= 0
1. 1 answer
2. 346 views
express x-1/(x+1)(x-2)^2 into partial fractions
1. 2 answers
2. 1,376 views
DIFFERENTIATE FROM FIRST PRINCIPLES(I)3X (ii)X^2+2X+3 (iii)1/x^2
1. 1 answer
2. 387 views
A lump of ice of density 0.92g/cm^3 is placed is placed into a tumbler containing a coke.The density of coke is 1.150g/cm^3.What
1. 1 answer
2. 497 views
use the inverse method to solve the system of linear equations-x +3y+2=1 2x+5y=3 3x+y-2z=-2
1. 1 answer
2. 485 views
The equation of the circle is x(squared)+y(squared)-3x -4=0.Find :(i)the coordinates of its center and the radius (ii) the
1. 2 answers
2. 485 views
To verify her suspicion that a rock specimen is hollow,a geologist weighs the specimen in air and in water.She finds that the
1. 3 answers
2. 1,572 views
An object 5cm is placed 30cm in front of a concave mirror.The image is 60cm in front of the mirror.Find (a) the focal length of
1. 3 answers
2. 1,883 views
write each of the following as trigonometric ratios of acute angles.(a)sin160 degrees (b)cos 310 degrees (c)tan 200 degrees
1. 1 answer
2. 1,946 views
A train passes a control tower with a velocity u and has a constant acceleration.At 800m beyond the tower,the velocity is
1. 1 answer
2. 500 views
A missile of mass 4kg is fired through a stack of asbestos sheets 1.8m thick.If the missile approaches the asbestos with a
1. 1 answer
2. 540 views

Answers (1)

A ball is dropped from a height of 5m onto a concrete floor and rebounds with a speed of 0.8 times the downward speed on arrival.Find the height reached from the rebound

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