x2+26x = 68 x2+26x-68 = 0 (x+13)2-68 = 0 (x+13)2-169-68 = 0 x+13 = +/- the square root of 237 x = -13 +/- the square root of 237
The 68-95-99.7 rule, or empirical rule, says this:for a normal distribution almost all values lie within 3 standard deviations of the mean.this means that approximately 68% of the values lie within 1 standard deviation of the mean (or between the mean minus 1 times the standard deviation, and the mean plus 1 times the standard deviation). In statistical notation, this is represented as: μ ± σ.And approximately 95% of the values lie within 2 standard deviations of the mean (or between the mean minus 2 times the standard deviation, and the mean plus 2 times the standard deviation). The statistical notation for this is: μ ± 2σ.Almost all (actually, 99.7%) of the values lie within 3 standard deviations of the mean (or between the mean minus 3 times the standard deviation and the mean plus 3 times the standard deviation). Statisticians use the following notation to represent this: μ ± 3σ.(www.wikipedia.org)
Almost 2 1/4 feet. There are 30.48 cm to 1 foot, so 68 cm = 68/30.48 ft = 2.23 ft
24 ; Identify the variable in the equation.5 + 9x = 68a. 5 b. 68 c. x d. 9x
The correct answer is 10*9/2 = 45. The 45 are: 01, 02, 03, 04, 05, 06, 07, 08, 09 12, 13, 14, 15, 16, 17, 18, 19, 23, 24, 25, 26, 27, 28, 29, 34, 35, 36, 37, 38, 39, 45, 46, 47, 48, 49, 56, 57, 58, 59, 67, 68, 69 78, 79, 89. In a combination, the order of the elements DOES NOT MATTER.
49 + 72 + 68 = 189
68 + 59 = 127
24.38
768
68
34+34=68
28 + N = 68 Subtract 28 from each side: N = 40
It is: 18 plus 50 equals 68
67
68 2/3 = 206/3 or 68.66...
If you mean as an equation in the form of 8x+4 = 68 then x equals 8
91000 mm.