In a study designed to predict blood cholesterol levels from amount of daily saturated fat in grams (X1) and the number of hours of daily exercise (X2), the slope of X1 is 5, the slope of X2 is –4, and the y intercept is 130.

a) If an individual reports that he or she typically eats 15 grams of saturated fat daily and exercises 1 hour every day, what would be the predicted cholesterol level for this individual?

i) -180

ii) -201

iii) -75

iv) -145

1. 180°. the sum of the interior angles of a triangle is 180°, for the equilateral triangle that it has three equals side is 60°+60°+60°=180°.

2. 60°. each interior angle of a equilateral triangle is 60°

3. 120°. the measure of ∠m is 120°, the sum of the angles ∠m and ∠n is equal to 180°. so, in order to find the measure of ∠m, we have ∠m+∠n=180° > ∠m=180°-∠n > ∠m=180°-60°=120°.

4. 360°. the sum of the exterior angles of an equilateral triangle is ∠m+∠r+∠x=120°+120°+120°=360°. the exterior angles of any triangle always add 360°.