2k/3 - 4
(2/3)k
For any non-zero integer k, 2k/3k is an equivalent fraction.
5-k
(1/2) x (2/3) = 1/3
The sum of any two sides of a triangle is greater than the third side. So, 3+4>k, that is k<7 Also, 3+k>4 so that k>1 So 1 < k < 7
4
Canine teeth are often the largest teeth in their mouth. They have two in the upper jaw and two in the lower for a total of 4.
Bombay Duck
k * 4 = 48 k = 48/4 k = 12 so 12 * 4 = 48
The two lines are y = 2x + k and y = x² - 2x - 7 Which means they meet at: 2x + k = x² - 2x - 7 → x² - 4x - (k+7) = 0 This can be solved using the formula for quadratics: x = (- -4 ± √((-4)² - 4×1×-(k+7)))/2 = 2 ± √(4 + k + 7) = 2 ± √(k + 11) This has one solution when the determinant (the part in the square root) is 0, ie k + 11 = 0 → k = -11 If the determinant is positive, there are two solutions, ie k + 11 > 0 → k > -11 Thus the there are two distinctive points if k > -11, and only 1 point if k = -11.
Thermal expansion of sodium chloride: - at 75 K: 19.10-4/K - at 273 K: 40. 10-4/K - at 1000 K: 69,5.10-4/K
The multiples of 4 are numbers of the form 4*k where k is an integer.4*k = 2*(2*k) that is, 4*k is a multiple of 2 - in other word, it is even.