Barbara is a research biologist for green carpet lawns. she is studying the effects of fertilizer type, temperature at time of application, and water treatment after application. she has three fertilizer types, two temperature zones, and five water treatments to test. determine the number of different lawn plots she needs in order to test each fertilizer type, temperature range, and water treatment configuration.

the university of montana ski team has ten entrants in a men's downhill ski event. the coach would like the first, second, and third places to go to the team members. in how many ways can the ten team entrants achieve first, second, and third places?

there are 15 qualified applicants for 4 trainee positions in a fast-food management program. how many different groups of trainees can be selected?

if you are saying purchasing 3 social media ads and one newspaper ad counts as one purchase then there are:

6 purchases

if you are asking how many of each then:

18 social media ads

6 newspaper ads

he can buy 4lbs. of live bait and 1lbs of natural bait

step-by-step explanation:

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°.

8: 40

2 hours

10: 40

55 min

11: 35