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4 years ago

How many different ways can 9 people line up for a picture?

Mathematics

1 answer:

AleksandrR [38]4 years ago

4 0

Answer:

262880

i had a test with the same question, i promise its right :)

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(n2+11n+25) ÷ ( n+5) long division

zmey [24]

Answer:

$(n^2+11n+25)\div( n+5)=n+6-\frac{5}{n+5}$ or $n+6,R5$

Step-by-step explanation:

Synthetic division:

-5 | 1 11 25

____-5 -30

1 6 | -5

Therefore, $(n^2+11n+25)\div( n+5)=n+6-\frac{5}{n+5}$ or $n+6,_$R$5$

Long division:

n+5 | n² + 11n + 25

- n² + 5n____ <-- n

6n + 25

- 6n + 30 <-- 6

-5 | n+6

Therefore, $(n^2+11n+25)\div( n+5)=n+6-\frac{5}{n+5}$ or $n+6,_$R$5$

6 0

3 years ago

You have $140 in a savings account and save $10 per week. Your friend has $95 in a savings account and saves $19 per week. How m

Dmitry [639]

Answer:

5 weeks

Step-by-step explanation:

19x5=95 95+95=190

10x5=50 50+140=190

7 0

3 years ago

Two fewer than a number doubled is the same as the number decreased by 38. if n is "the number," which equation could be used to

Alona [7]

$\displaystyle \\ 
\text{We use the following equation:} \\ \\ 
 \frac{n}{2} = n - 38 \\ \\ 
We solve for n: \\ \\ 
 \frac{n}{2} = n - 38 ~~\Big| \times 2 \\ \\ 
n = 2 \times n - 2 \times 38 \\ \\ 
n = 2n - 76 \\ \\ 
2n - n = 76 \\ \\ 
\boxed{n = 76} \\ \\ 
\text{Verification: } \\ \\ 
\frac{n}{2} = n - 38 \\ \\ 
\frac{76}{2} = 76 - 38 \\ \\ 
\boxed{38 = 38 ~~~ Correct }$

8 0

4 years ago

-. Patrick left an $8 tip on a $50 restaurant bill. What percent tip is that?

Aloiza [94]

Answer:

16%

Step-by-step explanation:

let the restaurant bill be 100%

Therefore

If $50=100%

$8=?

Cross multiply

(8×100) ÷50

Ans 16%

3 0

3 years ago

Read 2 more answers

I really don't know sorry

Ratling [72]

She has to sell 4 computers for option b to be better than option a

6 0

4 years ago

How many different ways can 9 people line up for a picture?​

How many different ways can 9 people line up for a picture?