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3 years ago

Find the area of a triangle whose two sides are 18cm and 10cm and the perimeter is 42cm

Mathematics

1 answer:

kobusy [5.1K]3 years ago

5 0

Ur answer will be - A≈69.65cm².

Hope this helps!!

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Find the generating function for the sequence 1,1,1,2,3,4,5,6,....

marin [14]

Answer:

$P(x)=\dfrac{1}{1-x}+\dfrac{x^3}{(1-x)^2} \quad \text{for} \mid x \mid < 1$ [/tex]

Step-by-step explanation:

The generating function of a sequence is the power series whose coefficients are the elements of the sequence. For the sequence

$1,1,1,2,3,4,5,6,...$

the generating function would be

$P(x)=1+x+x^2+2x^3+3x^4+4x^5+5x^6+...\\$

we can multiply P(x) by x to get

$xP(x)=x+x^2+x^3+2x^4+3x^5+4x^6+...$

Note that

$P(x)-xP(x)=1+(2x^3-x^3)+(3x^4-2x^4)+(4x^5-3x^5)+(5x^6-4x^6)+...\\ \\=1+x^3+x^4+x^5+x^6+...=1+x^3(1+x+x^2+x^3+x^4+...)$

which for $\mid x \mid < 1$ can be rewritten as

$(1-x)P(x)=1+\dfrac{x^3}{(1-x)} \quad \Rightarrow \\\\P(x)=\dfrac{1}{(1-x)}+\dfrac{x^3}{(1-x)^2}$

8 0

3 years ago

Graph the function g(x) = 4x–7.

lukranit [14]

Answer:

two dots: (0, -7), (1, -3)

and it's the line

Step-by-step explanation:

just try x=0, g(x)=-7

and x=1, g(x)=-3

5 0

3 years ago

What is the sum of the complex number 2+3i and 4+8i, where i=√-1?

ser-zykov [4K]

2+3i+4+8i
2+4+3i+8i
6+11i

3 0

3 years ago

PLS HELP ASAP x^2 - 4x-1=0 Solve using formula

-BARSIC- [3]

X1=2-Square root 5 x2=2+ Square root 5

4 0

3 years ago

Read 2 more answers

-7=x 59/(-9) what is the answer to this

skelet666 [1.2K]

I got x= 63/59
i used mathpapa.com for these questions hoped this is right and helped

7 0

3 years ago