Barbara has a rectanglar shaped mouse pad the longest side of the mouse pad is 8 inches and the shortest side is 3 inches what i
1 answer:
Answer:
1) 22 inches, 24
Step-by-step explanation:
Barbara has a rectangular shaped mouse pad
Let the length of mouse pad = 8 inch
Breadth of a mouse pad= 3 inches
Perimeter of mouse pad= 2(l+b)
Perimeter of mouse pad= 2(8+3)
Perimeter of mouse pad= 2×11 inch
Perimeter of mouse pad= 22 inches
Area of a mouse pad= l×b
Area of a mouse pad= 8×3
Area of a mouse pad= 24
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Answer:
1120 combinations of four teachers include exactly one of either Mrs. Vera or Mr. Jan.
Step-by-step explanation:
The order in which the teachers are chosen is not important, which means that the combinations formula is used to solve this question.
Combinations formula:
is the number of different combinations of x objects from a set of n elements, given by the following formula.
In this question:
1 from a set of 2(Either Mrs. Vera or Mr. Jan).
3 from a set of 18 - 2 = 16. So
1120 combinations of four teachers include exactly one of either Mrs. Vera or Mr. Jan.