Three research department is have 10 seven and eight members respectively each department is to select a delicate in an alternate to represent the department at a conference in how many ways can this be done

We conclude that exists 211680 ways.

Step-by-step explanation:

We know that the three research department is have 10, 7 and 8 members.

We choose a delegate and an alternate to represent the department.

First case: department  have 10 members.

So, for a delegate, we have 10 options, and for a alternate 9, so a total of

10 * 9 = 90 options.

Second case: department  have 7 members.

So, for a delegate, we have 7 options, and for a alternate 6, so a total of

7* 6 = 42 options.

Third case: department  have 8 members.

So, for a delegate, we have 8 options, and for a alternate 7, so a total of

8* 7 = 56 options.

Therefore, we get:

90 · 42 · 56 = 211680

We conclude that exists 211680 ways.

answer: 1722

step-by-step explanation:

given: the mass of saturn=

the mass of mercury=

the number of times the mass of saturn is greater than the mass of mercury

hence, the mass of saturn is 1722 times greater than the mass of mercury.

the answer is two. hope this !