The data below are the ages and systolic blood pressures (measured in millimeters of mercury) of 9 randomly selected adults. The equation of the least squares regression line is found to be y with hat on top equals 60.46 plus 1.488 x space . Use the regression line to predict the systolic blood pressure of a person who is 43 years old. Round to the nearest millimeter.

Determine the quotient and remainder when (6a3)+11a2-4a-9) is divided by (3a-2) express your answer in the form q(a) + r(a)/d(a)

In the following diagram it is given that dec,ab || dc, ad || eb, and ad is congruent to bc. a)why isn't abc a parallelogram even though it has a pair of parallel sides and a pair of congruent sides b)explain why be must be congruent to bc. further explain what type of triangle this makes triangle abc and what it tells you about angle 1 and angle 2c) finally why must angle 3 be congruent to angle 1? further, explain why we know that angle 3 is congruent to angle 2

The measure of an angle is 117°. what is the measure of a supplementary angle?