Aisha organized her books for 1/6 hour and her coin collection for 3/7 hour. What is the best estimate for the total time Aisha spent organizing? Drag and drop an answer into each box to correctly complete the sentence.

Use pascal's triangle to find the missing values. x4 - 4xb + 6x2 - ax + 1

To start to solve the system of equations below, which number would you multiply in the equation -2x-5y=-1? the two equations are -2x-5y=-1 and 4x+2y=8

The random variable x has probability density function f (x) = k(−x²+5x−4) 1 ≤ x ≤ 4 or =0 1 show that k = 2/9 find 2 e(x), 3 the mode of x, 4 the cumulative distribution function f(x) for all x. 5 evaluate p(x ≤ 2.5). 6 deduce the value of the median and comment on the shape of the distribution.