The slope of the trend line is 15. what does that mean in regard to the data of the scatterplot? check all that apply. the slope represents the rate of change of the data. advertising costs increase $15,000 as sales increase by $1,000. sales increase $15,000 as ads increase by $1,000. a positive slope infers a negative correlation. a positive slope infers a positive correlation.'

Express the following as a function of a single angle, cos(60) cos(-20) - sin(60) sin(-20)

The length of triangle base is 26. a line, which is parallel to the base divides the triangle into two equal area parts. find the length of the segment between triangle legs.

The swimming pool is open when the high temperature is higher than 20∘c. lainey tried to swim on monday and thursday (which was 33 days later). the pool was open on monday, but it was closed on thursday. the high temperature was 30 ∘c on monday, but decreased at a constant rate in the next 33 days. write an inequality to determine the rate of temperature decrease in degrees celsius per day, d, from monday to thursday.