A pile of sand had a weight of 60kg. The sand is out into a small bag, a medium bag and a large bag in the ratio 2:3:7
Work out the weight of sand in each bag

Which term best describes the association between variables a and b? no association a negative linear association a positive linear association a nonlinear association a scatterplot with an x axis labeled, variable a from zero to ten in increments of two and the y axis labeled, variable b from zero to one hundred forty in increments of twenty with fifteen points in a positive trend.

Which shows the correct substitution of the values a,b and c from the equation 1=-2x+3x^2+1

Cody was 165cm tall on the first day of school this year, which was 10% taller than he was on the first day of school last year.