If a straight line graph of y against 1/x^2 is drawn to represent the equation x(y – 2a) = b/x, where a and b are constants, find : (a) the gradient,

(b) the Y-intercept,

of the straight line.

The number of hours per week that the television is turned on is determined for each family in a sample. the mean of the data is 37 hours and the median is 33.2 hours. twenty-four of the families in the sample turned on the television for 22 hours or less for the week. the 13th percentile of the data is 22 hours. approximately how many families are in the sample? round your answer to the nearest integer.

The final cost of a sale is determined by multiplying the price on the tag by 75%. which best describes the function that represents the situation?

Secant be and cf intersect at point d inside a what is the measure of cde