The equation yˆ=−2.5x+222.5 models the amount of cholesterol, ldl , for a person, in mg/dl , where x is the time spent exercising per day, in minutes. according to the regression equation, what is the amount of cholesterol for a person exercising 20 minutes a day? 61.5 mg/dl81.5 mg/dl172.5 mg/dl272.5.5 mg/dl

1234567891011 match the reasons with the statements in the proof. given: j | | k m 1 = m 3 prove: l | | m 1. j||k, m∠3 = m∠1 if lines are ||, then corresponding angles are =. 2. m∠1 = m∠2 if alternate interior angles are =, then lines are ||. 3. m∠2 = m∠3 substitution 4. l||m given

Pick the description of a geometric object that best matches the real world object box for a deck of card

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