how many of each school must get 1 blackboard

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if8 boards are to be distributed then the number of ways can be8C4=70. and if every school must get atlest one board then it is possiblein 70-14 ways = 56 ways.. let abcd be the schools. a b c d. 0 0 0 8 4C1= 4 (three schools dont get even1 board) 0 0 1 7 4C2= 6 (two schools dont get even 1board) 0 1 1 6 4C3 =4. hence 6+4+4=14.

What is the length of a blackboard?

Jan 13, 2006 · According to Jim’s numbers, Blackboard needs to acquire 185 new customers every year to hold steady, 371 to get 5% growth, and so on, up to 742 new customers needed to grow at 15%. How many new customers a year has Blackboard been getting? 152. Less than they need to break even.

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Blackboard Frequently Asked Questions: Student Issues Course Issues I am registered in several courses, but some of my classes are not showing up on my Blackboard site.Why aren't they listed? Instructors have to make a course available for any enrolledstudent to see it.

Answer

There are 165 ways to distribute the blackboards between the schools. If at least 1 blackboard goes to each school, then we only have 35 ways.

New questions in Mathematics

Calculate the distance between the points M= (-2, 1) and K= (2, -4) in the coordinate plane.

Why do you need to align goals with assessment questions?

You can align goals with individual assessment questions to help your institution measure achievement. After you make the assessment available, students can view information for the goals you align with questions so they know your expectations.

What is matching question?

With Matching questions, students pair items in the prompts column to items in the answers column. The number of items in each column doesn’t have to be equal because you can reuse answers and add additional answers. Additional answers are distractors that don’t match any of the prompts and increase the question's difficulty.

Can students view media in answer choices?

Students can view media in answer choices and scroll through the list before they make selections. Videos that appear inline have controls to play and download. Media files that don't appear inline have a menu to preview or download. Students can select images to enlarge them.

Do matching questions get graded automatically?

Matching questions are graded automatically. If an assessment only has this type of question, the assessment scores are posted automatically for students to view. Students see the graded question just as you do.