MATHEMATICS MIDDLE SCHOOL

What is the Answer when you Evaluate 8P5?

Answers

Answer 1

Answer:

Answer: 6720

Step-by-step explanation:

The number of permutations of n things taken r at a time is given by the following formula:

$^nP_r=(n!)/((n-r)!)$

Similarly, for n=8 and r=5, the number of permutations of 8 things taken 5 at a time will be:

$^8P_5=(8!)/((8-5)!)\n\n=(8*7*6*5*4*3!)/(3!)\n\n=6720$

Hence, $^8P_5=6720$

Answer 2

Answer:

The permutation is solved and the expression is ⁸P₅ = 6,720

Given data ,

The notation "8P5" represents the permutation of 8 objects taken 5 at a time.

The formula for permutation is given by: P(n, r) = n! / (n - r)!

Using this formula, we can calculate ⁸P₅ as follows:

permutation ⁸P₅ = 8! / (8 - 5)!

⁸P₅ = 8! / 3!

⁸P₅ = (8 * 7 * 6 * 5 * 4 * 3 * 2 * 1) / (3 * 2 * 1)

⁸P₅ = 8 * 7 * 6 * 5 * 4

permutation ⁸P₅ = 6,720

Therefore, the expression ⁸P₅ is equal to 6,720

Hence , the permutation is solved

To learn more about permutation click :

brainly.com/question/1216161

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Is it possible to square root a negative number?

Answers

No because a negative times a negative will be positive and it will not equal a negative number. the square root cannot be one negative and one positive because that is against the definition of a square root.

No because you had no number which were negative after you squared. if you do every number goes back positive after you squared it i think.

How mAny full10ozportions can be obtained from 14ld of trimmed meat

Answers

You would have 22 full 10oz portions.

First you have to multiply 16 by 14, because there are 16oz in one pound and there is 14 pounds. You do this to convert it into ounces. When you do this you get 224.

Now you have to divide it by 10, because you want to find out how many portions you can have. When you do this you get 22 portions. There will be 4oz left over.

(x-3).(2y+1)=13 rezolv please!

Answers

Good morning

(x-3)(2y+1)=13

Now let's start by adding 3 to both sides

2xy+x-6y-3+3=13+3

2xy+x-6y=16

Now we need to add 6y to both sides

2xy+x=6y+16

Now let's factor out the variable x

x(2y+1)=6y+16

Now we gonna have to divide both sides by 2x+1 so we can find the value for x

x(2y+1)/2y+1= 6y+16/2y+1

x= 6y+16/2y+1

I hope that's help :)

(3x^-2y)*(8xy^-3) --- SOLVE

Answers

$(3x^2-2y)*( 8xy ^(-3) )$

Remove parentheses : (a) = a

$= (3x^2-2y) * 8xy ^(-3)$

$y^(-3)$

Apply expoent rule

$a ^(-b) = (1)/(a ^(b) )$

$= (1)/(y^3)$

$8x (1)/(y^3) (3x^2-2y)$

Multiply fractions:

$a* (b)/(c) = (a*b)/(c)$

$= (8(3x^2-2y))/(y^3)$

hope this helps!

1 Use Negative Power Rule: x−a=1xax−a=1xa
3×1x2y×8xy−33×1x2y×8xy−3
2 Use Negative Power Rule: x−a=1xax−a=1xa
3×1x2y×8x×1y33×1x2y×8x×1y3
3 Simplify
24yxx2y324yxx2y3
4 Use Quotient Rule: xaxb=xa−bxaxb=xa−b
24y1−3x1−224y1−3x1−2
5 Simplify 1−31−3 to −2−2
24y−2x1−224y−2x1−2
6 Simplify 1−21−2 to −1−1
24y−2x−124y−2x−1
7 Use Negative Power Rule: x−a=1xax−a=1xa
24×1y2x−124×1y2x−1
8 Use Negative Power Rule: x−a=1xax−a=1xa
24×1y2×1x24×1y2×1x
9 Simplify
24y2x24y2x

-y=3 would be y=-3 right?

Answers

Answer:

correct

Step-by-step explanation:

to make y positive, you would divide it by -1. This makes y positive and 3 negative.

Sandy's orchard has only 4 apple trees for every 3 pear trees. She is wanting to plant enough avocado trees so that she has 2 avocado trees for every 5 trees. Sandy is planting 18 avocado trees, making the ratio of avocado trees be _ to _.

PLEASE HELP!

Answers

current ratio: 4 apple trees for every 3 pear trees. wants: 2 avocado trees for every 5 pear trees in the orchard. Sandy is planting 18 avocado trees so 2 avocado trees for every 5 pear trees =1 avocado trees for every 2.5 pear trees therefore if we have 18 avocado trees 18 x 2.5 = 45 pear trees 4 apple trees for every 3 pear trees 4/3 = 1.333 apple trees for every 1 pear tree therefore if we have 45 avocado trees 45 x 1.333 = 60 apple trees therefore ratio of avocado to apple trees = 18 : 60 18 : 60 = 9 : 30 = 3 : 10

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