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Wednesday, 23 November 2016

TRIANGLES 1

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The two sides of an equilateral triangle are (4x-3) and (18+x). If the third side is e 2 -11, find the value of e. Solution All...

GRADIENT OR SLOPE 5

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The slope of a line which passes through (-5, -12) and (c,-9) is 3 /11. Find c. Solution x 1 = -5,  y 1 =-12,  x 2 = c,  y 2 = -9 ...

FUNCTIONS 11

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Given that F(x) = 13x  +  65. Find F(-2) Solution F(x) = 13x  +  65 F(-2) = 13(-2)  +  65 F(-2) = -26  +  65 F(-2) = 3...

GRADIENT OR SLOPE 4

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Find the slope of a line which passes through (-5, -12) and (6,-9) Solution x 1 = -5,  y 1 =-12,  x 2 = 6,  y 2 = -9 m = y2 –y...

STANDARD FORM 4

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Evaluate the following giving your answer in standard form. 982.7 x 10 -9    5 x 10 -20 Solution =  982.7 x 10 -9        5...

FUNCTIONS 10

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Find the inverse of { (12,6), (7,3), (-9,8), (-3,-6), (11,-7)  } Solution Here, the inverse is the opposite of a given expression....

PERIMETER 1

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Area of rectangle is 48m 2 . Find its perimeter if width is 4m.  Solution A = L x w 48 = L x 4 48 = 4L 4      4 1...

PROBABILITY 12

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A school survey found that 3 out of 10 students like pizza. If three students are chosen at random with replacement, what ...

LOGARITHMS 17

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Simplify        Log0.0000001                         Log(1/100) Solution =    Log0.0000001        Log(1/100) =    Log10 -...

SETS 10

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In a certain school, 190 students take either Chemistry or physics. 130 take chemistry and 100 take both subjects. Find those who take phy...