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#76 2009-03-18 05:10:03
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Re: Exercise
The sum 1 + 4 + 9 + 16 + ....1600 is equal to
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#77 2009-03-18 05:26:52
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Re: Exercise
If the volume of a sphere is equal to
cubic centimeters, what is the diameter of the sphere?Character is who you are when no one is looking.
#78 2009-03-18 05:52:38
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Two regular polygons have number of sides in the ratio 4:5. The measure of their interior angles is in the ratio 25:26. How many sides does the polygon with lesser number of sides contain?
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#79 2009-03-18 07:10:38
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Re: Exercise
If Sn = 1 + 4 + 42 + .... n terms, find the least value of n
such that Sn > 1500.
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#80 2009-03-18 07:30:55
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Re: Exercise
Form the equation whose roots are 7 + √3 and 7 - √3.
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#81 2009-03-18 19:00:12
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Re: Exercise
What is the value of
where n is a natural number?
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#82 2009-03-18 19:18:00
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Re: Exercise
What is the solution set for the equation
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#83 2009-03-18 19:34:05
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Re: Exercise
What is the product of
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#84 2009-03-18 19:48:56
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Re: Exercise
If the roots of the equation
are two consecutive integers, what is the value of
?
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#85 2009-03-18 20:00:02
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Re: Exercise
If n is a natural number, then
is divisible by which one of the following?
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#86 2009-03-19 03:57:10
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Re: Exercise
What is the sum of the numbers lying between 107 and 253 which are divisible by 5?
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#87 2009-03-19 05:25:58
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In a quadratic equation with leading coefficient 1, Shakil reads th coefficient 16 of x wrongly as 19 and obtains the roots -15 and -4. Which of the following are correct roots of the equation?
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#88 2009-03-19 05:50:27
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Re: Exercise
If A is the set of factors of the number 15, B is the set of prime numbers less than 10 and C is the set of even numbers less than 9, then what is
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#89 2009-03-19 05:58:09
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Re: Exercise
Which of the following is true if
?
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#90 2009-03-20 03:37:35
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The ares of the adjacent faces of a cuboid are 8 cm², 18 cm², and 25 cm². Find the volume of the cuboid.
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#92 2009-03-20 04:25:25
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A hemispherical bowl of radius 9 cm is full of water. This is filled in cylindrical bottles of radius 3 cm and height 6 cm. How many bottles are required to empty the bowl?
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#93 2009-03-20 06:28:54
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R1, R2 are the remainders when the polynomials x³ + 2x² - 5ax - 7 and x³ + ax²- 12x + 6 are divided by x+1 and x-2 respectively. If 2R1 + R2 = 6, find the value of a.
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#95 2009-03-20 07:15:46
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A fraction becomes
if 1 is subtracted from the numerator and 2 is added to the denominator. If 2 is subtracted from the numerator and 1 is added to the denominator, the fraction becomes . Find the fraction.Character is who you are when no one is looking.
#96 2009-03-20 07:31:47
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A cylindrical container of height 32 cm and base diameter 18 cm is filled with sand. The container is emptied on the ground and a conican heap of sand is formed. If the height of the conical heap is 24 cm, find te radius of the heap.
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#97 2009-03-22 04:52:00
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Re: Exercise
If 2 - i is a solution of x2 - 4x + k = 0, then what is the value of k?
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#98 2009-03-22 05:19:15
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Re: Exercise
If
then what is the angle between and ?
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#99 2009-03-22 05:34:52
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Re: Exercise
Which of the following is true if
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#100 2009-03-22 06:19:43
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Re: Exercise
Find the angle between the vectors
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