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umka21 [38]
3 years ago
9

Jim wants to put a wallpaper border around a rectangular room. The

Mathematics
2 answers:
Mariana [72]3 years ago
8 0

Answer:

Perimeter is distance around the room.

Perimeter = 14 + 10 +14 +10 = 48 feet

Rolls needed = Perimeter / roll length = 48 /20 = 2.4.

Since you can't buy a partial roll you have to get a full roll

Rolls need = 2.4 rounded up to the next number is 3.

Answer is C.

Step-by-step explanation:

puteri [66]3 years ago
5 0

Answer:3

Step-by-step explanation:

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i think it 32,768

Step-by-step explanation:

2+2=4+2=6-2=4*2=8 and 8*8*8*8=32,768

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4 years ago
A company has 7 male and 9 female employees, and needs to nominate 2 men and 2 women for the company bowling team. How many diff
lys-0071 [83]

Answer:

The team can be formed in 756 different ways

Step-by-step explanation:

This is a combination problem since we are to select a set of people from a group. Combination has to do with selection.

for example, if r number of object is to be selected from a pool of n objects, this can be done in nCr number of ways.

nCr = \frac{n!}{(n-r)!r!}

Now If A company has 7 male and 9 female employees, and needs to nominate 2 men and 2 women for the company bowling team, then this can be done in the following way;

7C2 * 9C2

7C2 = \frac{7!}{5!2!} \\= \frac{7*6*5!}{5!*2} \\= 7*3\\= 21ways\\\\similarly;\\\\9C2 = \frac{9!}{7!2!}\\9C2= \frac{9*8*7!}{7!*2} \\9C2 = 9*4\\9C2 = 36

7C2 * 9C2 = 21*36

= 756

The team can be formed in 756 different ways

5 0
3 years ago
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