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3 years ago

Explain the difference between combination and permutation in your own words. Give examples.

1 answer:

8 0

Apparently, we use "Permutation" when order doesn't matter. In that way, only possible outcomes can be calculated.

P (n, r) = n! ( (n - r)!

Unlike, We use "Combination" when order does matter. Combination gives us all possible values.

C (n, r) = n! / (n - r)! r!

Hope this helps!

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Give examples of numbers that you would multiply by 3 to get an answer that is greater than 3, equal to 3, or less than 3

oksian1 [2.3K]

Answer:

1. 3 x 3 = 9

2. 3 x 1 =3

3. 3 x 0.4 = 1.2

Step-by-step explanation: Hope this helps :)

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3 years ago

Factor to solve X^2-2x-15=0

zzz [600]

Answer:

(x+3)(x-5)

Step-by-step explanation:

find two multiples of -15 that when added together create -2

those two numbers would be -5 and +3

-5x3=-15

-5+3=-2

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3 years ago

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nordsb [41]

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3 years ago

A rectangle has vertices H(3,0), I(3,7), J(6,7) , and K(6, 0) . Use the coordinates to find the perimeter of the rectangle. _uni

Paul [167]

Answer:

20 units

Step-by-step explanation:

Plot points on a graph. doesn't have to be to scale. check co-ordinates differences and add up. see image.

4 0

2 years ago

a cooler contains 50 bottles; 30 bottles of water, which 8 are lemon flavored and 20 bottles of tea, of which 5 are lemon flavor

xenn [34]

Answer:

The required probability is $\dfrac{13}{50}$

Step-by-step explanation:

Total number of bottles = 50

Total number of water bottles = 30

Total number of lemon flavored water bottles = 8

Total number of tea bottles = 20

Total number of lemon flavored tea bottles = 5

Probability of selecting a lemon flavored water bottle = Probability of selecting a water bottle $\times$ Probability of selecting a lemon bottle out of water bottles.

Probability of selecting a lemon flavored tea bottle = Probability of selecting a tea bottle $\times$ Probability of selecting a lemon bottle out of tea bottles.

Formula for probability of an event E can be observed as:

$P(E) = \dfrac{\text{Number of favorable cases}}{\text {Total number of cases}}$