Joni and scott co-teach a third grade class at the elementary school. joni teaches on tuesdays and thursdays; scott teaches on mondays, wednesdays and fridays. they share the position's salary and benefits on a proportional basis. this best describes

JOB SHARING

Explanation:

This is what we call JOB SHARING or WORK SHARING since two or more people share the tasks that usually do a single person, in other words, multiple people for only one job position.  

It is important to be aware that not only the salary will be split but the benefits and the health insurance as well. Other factors to take into account are vacation days, paid holidays and also sick days.

Hope it helps

bd = 9 cm

step-by-step explanation:

in a 30°-60°-90° triangle, the ratio of side lengths is 1 : √3 : 2. that is, the longest side (hypotenuse) is twice the length of the shortest side.

all of the triangles in your geometry are 30°-60°-90° triangles. ac is the hypotenuse of δacd, and the short side of δabc.

the short side ad of δacd will be half the length of ac, so 3 cm. the hypotenuse ab of δabc will be twice the length of ac, so 12 cm. segment bd is the difference of the lengths ab and ad, so is

bd = ab -ad

bd = 12 cm - 3 cm = 9 cm

comment on side length ratios

you can figure the ratios of side lengths in a 30°-60°-90° triangle by considering the trig ratios of the angles. or you can figure the length of the altitude of an equilateral triangle of side length 2 using the pythagorean theorem.