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Crank
2 years ago
15

How do I regroup this for associative property 5 + 6) + (4 + 7) + 3

Mathematics
2 answers:
Bumek [7]2 years ago
3 0

Answer:

5+6)+(4+7)+3

11+11)+3

22+3

25

Sidana [21]2 years ago
3 0

9514 1404 393

Answer:

  5 +(6 +4) +(7 +3)

Step-by-step explanation:

"Regroup" in this context means relocate pairs of parentheses any way you like. There are many different correct answers.

Here, pairs of terms are grouped. You can group more, or different pairs. Some possibilities are ...

  (5 +6) +((4 +7) +3)

  5 +(6 +4 +7) +3

  5 +(6 +4) +(7 +3) . . . . . groups "tens" together

  (5 +6) +4 +(7 +3)

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A swimming coach needs to choose a team for a relay race. The coach must select 4 of 6 available swimmers
Trava [24]

The number of unique ways is given by the number of possible

combination having distinct members.

The number of unique ways there are to arrange 4 of the 6 swimmers are <u>15 ways</u>.

Reasons:

The given parameters are;

The number of swimmers available = 6 swimmers

The number of swimmers the coach must select = 4 swimmers

Required:

The number of unique ways to arrange 4 of the 6 swimmers.

Solution:

The number of possible combination of swimmers is given as follows;

_4C_6 = \dfrac{6!}{4! \times (6 - 4)!}  = 15

Therefore, the coach can select 4 of the 6 available swimmers in <u>15 unique ways</u>

Learn more here:

brainly.com/question/23589217

8 0
2 years ago
Consider rolling two fair dice and observing the number of spots on the resulting upward face of each one. Letting A be the even
Allushta [10]

Answer:

P(E|A)= \frac{10}{11}

Step-by-step explanation:

Given

Two rolls of die

E \to one of the outcomes is 6

A \to atleast one is 6

Required

P(E|A)

First, list out the outcome of each

E = \{(1,6),(2,6),(3,6),(4,6),(5,6),(6,1),(6,2),(6,3),(6,4),(6,5)\}

A = \{(1,6),(2,6),(3,6),(4,6),(5,6),(6,1),(6,2),(6,3),(6,4),(6,5),(6,6)\}

So:

P(E|A)= \frac{n(E\ n\ A)}{n(A)}

Where:

E\ n\ A = \{(1,6),(2,6),(3,6),(4,6),(5,6),(6,1),(6,2),(6,3),(6,4),(6,5)\}

n(E\ n\ A) = 10

n(A) = 11

So:

P(E|A)= \frac{10}{11}

7 0
2 years ago
Nick has an album that holds 700 compact discs. Each page of the album holds 7 compact discs. If 69​% of the album is​ empty, ho
mel-nik [20]

Answer:

41

Step-by-step explanation:

each page holds 7 discs. the alb holds 700 discs. that means there are 100 pages. 69% of the pages are empty so therefore 41 pages are filled.

4 0
2 years ago
HURRY PLEASE!!! IM BEING TIMED. I WILL GIVE YOU BRAINLIEST!
mrs_skeptik [129]

Answer:

4

Step-by-step explanation:

the y intercept three is 4 away from -1

8 0
3 years ago
Find the sum. express your answer in simplest form 8m^2-6/n+3 + 9m^2-4/n+3
Alex787 [66]
To solve this problem you must apply the proccedure shown below:

 1. You have the following expressions shown in the problem above:

 (<span>8m^2-6/n+3) + (9m^2-4/n+3)

 2. As you can see, they have equal denominators, then you have:

 (</span><span>8m^2-6+ 9m^2-4)/(n+3)
</span><span>
 3. Therefore, when you sum, you have the following result:

 (17m</span>²-10)/(n+3)
<span>
 The answer is: </span> (17m²-10)/(n+3)<span>

 

 

 </span>
4 0
2 years ago
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