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3 years ago

8

What is the difference between combination and permutation?

2 answers:

Oduvanchick [21]3 years ago

4 0

Answer c… there is no difference they are calculated the same

Nataly_w [17]3 years ago

3 0

Answer:

C.There is no difference they are calculated the same.

Step-by-step explanation:

If it's wrong so please sorry

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Every employee works 7 hours per day. every employee works 5 days per week. every employee works 49 weeks per year. how many day

andriy [413]

To determine the number of days that an employee work in a week, we simply use dimensional analysis and multiplying the number of works per week with the number of weeks in total for a year. That is,
employee works = (5 days per week)(49 weeks per year)
=245 days

4 0

3 years ago

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An equilateral triangle has a perimeter of 48 cm. What is the area?

KiRa [710]

Answer:

$A=64\sqrt{3}\ cm^2$

Step-by-step explanation:

we know that

An <u><em>equilateral triangle</em></u> has three equal sides and three equal interior angles (each interior angle measure 60 degrees)

so

The perimeter is equal to

$P=3b$

where

b is the length side of the equilateral triangle

we have

$P=48\ cm$

substitute

$48=3b$

solve for b

$b=48/3\\b=16\ cm$

Find the area

The formula of area applying the law of sines is equal to

$A=\frac{1}{2}b^2sin(60^o)$

substitute the value of b

$A=\frac{1}{2}(16)^2sin(60^o)$

$sin(60^o)=\frac{\sqrt{3}}{2}$

$A=\frac{1}{2}(16)^2(\frac{\sqrt{3}}{2})$

$A=64\sqrt{3}\ cm^2$

6 0

2 years ago

What is the greatest common factor of 42, 56, and 112

VashaNatasha [74]

Answer: gcf, hcf, gcd (42; 112) = 14 = 2 × 7: greatest (highest) common factor (divisor), calculated.

Step-by-step explanation:

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2 years ago

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The average of three numbers is 22. the average of two numbers is also 22. what is the value of the third number in the original

IRINA_888 [86]

Answer:

C

Step-by-step explanation:

If the average wasn't shifted at all, that means the third value must've been the same as the average to not shift it.

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3 years ago

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I need help answering

sergejj [24]

Answer:

I think its the second one, im not quite sure.

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2 years ago