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3 years ago

Solve. 164+56-[3+4+1]=

Mathematics

1 answer:

alukav5142 [94]3 years ago

3 0

164+56-[3+4+1]=

= 164 + 56 - 8

= 212

Have a nice days...........

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A number pattern starts with 4 and follows the rule "add 5." What are the first five

ser-zykov [4K]

Answer:

9,14,19,24,29

Step-by-step explanation:

Just add 5 to 4 and add 5 to the number after that.

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4 years ago

Evaluate 8 − 12 ÷ 2 + 3. 1 −1 4 5

Anvisha [2.4K]

According to the order of operations, multiplication and division are performed before addition and subtraction.

... 8 - 12 ÷ 2 + 3

... = 8 - 6 + 3 . . . . . . 12÷2 = 6

... = 2 + 3 . . . . . . . . . 8-6 = 2

... = 5

7 0

3 years ago

Read 2 more answers

Solve for x -3(2x-5)=10x⁺6

expeople1 [14]

Answer:

Step-by-step explanation:

distribute first- -6x+15=10x+6

combine like terms- 9=16x

divide- x=.56

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3 years ago

Suppose you plan to fence in an area where your dog can exercise without getting into the street. The length will be 3 times the

Reptile [31]

Answer:

The width of the equation is 3 and the length is 9

Step-by-step explanation:

This problem was kind of simple for me to answer. The first thing I did was divide the 4 sides of the perimeter into sections which would bring me to find that it was 6 inches on each side then I divided that by 2 bringing me to the answer of 3. Then I decided to multiply 3 by 3 which brought me to the answer 9. I decided to try it around the perimeter which would be....

9+9+3+3=?

I added the 9's first which gave me 18 .Then added the 3's together which gave me 6. The final step I added 6 and 18 together and got 24.

Giving the fact that the length is 3 times greater than the width I came to the conclusion that....

3 is the width and 9 is the length.

6 0

2 years ago

You know how to play 21 songs on your guitar. (a) If you want to choose 8 of the songs to make a setlist to play for a small gat

UNO [17]

Answer:

(a) 8,204,716,800

(b) 5,985

Step-by-step explanation:

Combinations and Permutations

Combinatorics is the part of the discrete mathematics that studies the enumeration of groups or sorting of a determined number of elements. The concept of combinations is tied to the different forms to group elements where the order of their arrangements is not important or does not differentiate from the very same set of elements picked in a different order.

The concept of combinations is tied to the differents forms to group elements where the order of their arrangements is not important or does not differentiate from the very same set of elements picked in different order.

On the other hand, permutations or variations are sets selected in a specific order and another set with the same element but in different order is considered a different set.

If we have n elements available to pick from in sets of m elements each, there can be C(n,m) different combinations, and it's given by

$\displaystyle C(n,m)=\frac{n!}{m!(n-m)!}$

Similarly the number of permutations is given by

$\displaystyle P(n,m)=\frac{n!}{(n-m)!}$

(a) I have n=21 songs to pick from and I want to choose m=8 of them where the order matters, so it's a permutation:

$\displaystyle P(21,8)=\frac{21!}{(13)!}=\frac{51,090,942,171,709,440,000}{6,227,020,800}=8,204,716,800$

I can make more than 8 billion different setlists

(b) To choose m=4 songs from n=21 songs where the order does not matter, we compute the combination

$\displaystyle C(21,4)=\frac{21!}{4!(17)!}=\frac{21\cdot 20\cdot 19\cdot 18\cdot 17!}{4\cdot 3\cdot 2\cdot 1(17)!}$

$\displaystyle C(21,4)=\frac{143,640}{24}=5,985$

I can make almost 6,000 sets of 4 songs

5 0

3 years ago