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4 years ago

What would (10x^2+8xy-20)-(2x^2+3xy+5) equal??

Mathematics

1 answer:

SSSSS [86.1K]4 years ago

5 0

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A family is taking a picture, with everyone in the family standing in a row. In the family, there are two sets of twins. In how

Wittaler [7]

Answer:

376320.

Step-by-step explanation:

Given:

There are two sets of twins in a family.

Total family member = 9

Solution:

Let family members = AA BB C D E F G

AA and BB are two set of twins .

First of we will find the arrangements of 5 family member ( 9 - 4 = 5 )

No of ways 5 family member can seat = $^{5}P_{5}$

Now, we will find the arrangements of BB.

As given that nobody is sitting next to their twin, means A twins cannot seat together.

Therefore, they can seat in these blank places given below:

......B.......B......C......... D...... E........ F........ G.......... in $^{8}P_{2}$

Similarly, B twins cannot seat together.

Therefore, they can seat in these blank places given below:

......A.......A......C......... D...... E........ F........ G.......... in $^{8}P_{2}$

Total number of arrangements of all family members = $^{5}P_{5}$ $\times$ $^{8}P_{2}$ $\times$ $^{8}P_{2}$

$=\frac{5!}{5-5!} \times\frac{8!}{8-2!} \times\frac{8!}{8-2!}\\=\frac{5!}{0!}\times\frac{8!}{6!} \times\frac{8!}{6!}\\\\=5!\times\frac{8\times7\times6!}{6!} \frac{8\times7\times6!}{6!}$

$=5\times4\times3\times2\times1\times56\times56\\=376320$

Therefore, Total number of arrangements of all family members is 376320.

5 0

4 years ago

What does it mean when a boy says u tryna hang out but you can’t cuz you ain’t home but then the next day he says you going to c

krek1111 [17]

Answer:

Say your not home!

Step-by-step explanation:

Say your not home,the set a date when yall can meet again!

7 0

3 years ago

PLS PLS PLS PLS help

Nikitich [7]

Im on that to, maybe i can help you !! :)

4 0

3 years ago

Raul works at a movie theatre. The function f(x) represents the amount of money in dollars Raul earns per ticket, where x is the

sattari [20]

Answer:

Step-by-step explanation:

The function f(x) represents the amount of money in dollars Raul earns per ticket, where x is the number of tickets he sells. This is represented by the function,

f(x) = 3x2 + 16 - - - - - - -1

The function g(x) represents the number of tickets Raul sells per hour, where x is the number of hours he works. The function is represented by

g(x) = the square root of five times x cubed

g(x) = √(5x^3)

To find f(g(x)), we substitute g(x) into f(x).

f(g(x))= 3[√(5x^3)]^2 + 16

4 0

4 years ago

Read 2 more answers

Which is 487,500,000 in scientific notation?

maksim [4K]

Answer:

= 4.875 × 108

(scientific notation)

= 4.875e8

(scientific e notation)

= 487.5 × 106

(engineering notation)

(million; prefix mega- (M))

= 487500000

(real number)

Step-by-step explanation:

8 0

3 years ago