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3 years ago

Pls hurry don’t write paragraph

Mathematics

1 answer:

adelina 88 [10]3 years ago

4 0

Answer:

Where is the question? I don't see it

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What is the missing lenghts?

frozen [14]

It is 20
I hoped i helped

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3 years ago

15=g/7 what does g equal to

const2013 [10]

Answer: 105 = g

Step-by-step explanation: To get g by itself, we would multiply

both sides of the equation by 7.

On the left, (7)(15) IS 105 and on the right, the 7's cancel.

So we have 105 = g.

4 0

3 years ago

Read 2 more answers

What is the value of a1 in the sequence? −4,−2,−1/2,−1/4,...

Ksenya-84 [330]

-1/8. hope this helps :)

8 0

3 years ago

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For the binomial expansion of (x + y)^10, the value of k in the term 210x 6y k is a) 6 b) 4 c) 5 d) 7

Sloan [31]

Answer:

a) 6

Step-by-step explanation:

Expanding the polynomial using the formula:

$(x+y)^n=\sum_{k=0}^n \binom{n}{k} x^{n-k} y^k$

Also

$\binom{n}{k}=\frac{n!}{(n-k)!k!}$

I think you mean $210x^6y^4$

We can deduce that this term will be located somewhere in the middle. So I will calculate $k= 5; k=6 \text{ and } k =7$ .

For $k=5$

$\binom{10}{5} (y)^{10-5} (x)^{5}=\frac{10!}{(10-5)! 5!}(y)^{5} (x)^{5}= \frac{10 \cdot 9 \cdot 8 \cdot 7 \cdot 6 \cdot 5! }{5! \cdot 5 \cdot 4 \cdot 3 \cdot 2 \cdot 1 } \\ =\frac{30240}{120} =252 x^{5} y^{5}$

Note that we actually don't need to do all this process. There's no necessity to calculate the binomial, just $x^{n-k} y^k$

For $k=6$

$\binom{10}{6} \left(y\right)^{10-6} \left(x\right)^{6}=\frac{10!}{(10-6)! 6!}\left(y\right)^{4} \left(x\right)^{6}=210 x^{6} y^{4}$

5 0

3 years ago

Bronson is an action and horror movie junkie. He started a movie review vlog and needs to keep up with his movie viewing at a hi

andreev551 [17]

two equations which can model this situation is : $y=2x$ and $x+y=1250$

Step-by-step explanation:

Here we have , Bronson is an action and horror movie junkie. He started a movie review vlog and needs to keep up with his movie viewing at a high pace. It has been a total of 50 weeks since he has stated his vlog and he has watched 1250 movies. He has watched twice as many horror movies a action movies. We need to Write two equations that can model this situation. Let's find out:

Let Bronson watched x action movies and y horror movies , than according to question horror movies he watched is twice that of action movies i.e.

⇒ $y=2x$ ........(1)

Now , he has watched 1250 movies i.e.

⇒ $x+y=1250$ .......(2)

⇒ $x+2x=1250$

⇒ $3x=1250$

Therefore , two equations which can model this situation is : $y=2x$ and $x+y=1250$ .

3 0

3 years ago