There are 10 students in a social studies class. three students will be selected to present their term projects today. in how many different orders can three students be selected? options : 120,720,60,1440

The number of ways this can be done is:

                         720

Total number of students are: 10

Now out of these 10 students we are asked to select 3 students.

We know that when we have to choose r items and also the order matters out of a total of 10 items the number of ways of doing so is calculated by the method of per as:

Here we have:

n=10 and r=3

Hence, the number of ways of doing so is calculated as:

          Hence, the answer is:

                720

the smallest possible measurement of the width is 14 feet

step-by-step explanation:

let's assume length of parallelogram is 'l'

width of parallelogram is 'w'

the perimeter of a parallelogram must be no less than 40 feet

so, we get

we are given

length of parallelogram is 6 feet

so,

l=6

we can plug it

now, we can solve for w

subtract both sides by 12

divide both sides by 2

and we get

so,

the smallest possible measurement of the width is 14 feet

jeff jeff

step-by-step explanation: