If x/y=2/3 then y**2/x**2 is equal to
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the least integer n for which the sum 1+3+5+---+(2n+1) exceeds 9999 is
VOLUNTEER TRAINING FOR DISADVANTAGED IN MATHS – QUESTION 9 : In a shift-code, the letters of the alphabet are replaced by the numbers 1 to 26 starting at some letters. An example is : A = 25, B = 26, C = 1, D = 2, E = 3, F = 4, G = 5, H = 6, I = 7, J = 8, K = 9, L = 10, M = 11, N = 12, O = 13, P = 14, Q = 15, R = 16, S = 17, T = 18, U = 19,V = 20, W = 21, X = 22, Y = 23, Z = 24. There are two shift-codes in which the sum of the numbers representing the letters of the word HOLE is 48. What is the sum of the numbers representing the letters of the word BLACK in each of these codes?
find 25% of 592=
In 1700 ad, this person showed that a series of 0s and 1s could be used to denote a number:
if x,y,z are natural numbers, and if 2x=y and y=3z, which of the following numbers could be x+y+z
What is the value of 10099+99 =
State and prove the sufficient condition for the maximum value of the function f (x,y)
if the length of the cycloid is 4 times the diameter of a rotating circle, then the area under the arch traced out by that cycloid is how many times the area of therotating circle?
A person with lung cancer is given an mri. Four radiologists examine each mri independently. If each specialist can detect lung cancer with 80% accuracy, what isthe probability that at least one of them will detect cancer in this patient.
Simplify (785^3-235^3)/(785^2+785*235+235^2)
In a single throw of 3 dice, the chance of throwing a total of 15 is
If perfect numbers, except 6, can be expressed by the sum of the cubes of an unbroken sequence of consecutive odd integers, what are the consecutive odd integerswhich, when cubed, give the perfect number 28?