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sattari [20]
2 years ago
12

Please help meeeeeeeeeeeeeeeeeeeeeeeeeeee

Mathematics
2 answers:
myrzilka [38]2 years ago
5 0

\\\text{Given that,}~~a_1  =-3\\\\a_n = 3a_{n-1} +5 \\\\a_2 = 3a_{2-1} +5 = 3a_1 +5 = 3(-3) +5 = -9 +5 =-4\\\\a_3 = 3a_{3-1} +5  =3a_2 +5 = 3(-4) +5 = -12 +5 =-7\\\\a_4 = 3a_{4-1} +5 = 3a_3 +5  = 3(-7) +5 = -21+5=-16\\\\\\-3,-4,-7,-16....

Contact [7]2 years ago
4 0

Ok don't hurt yourself I'm here ...

a(n) =  3a(n - 1) + 5

_____________________________________________

<h2>n = 2</h2>

put 2 instead of any "n" you can see in the above equation

a(2) = 3a(2 - 1) + 5

a(2) = 3a(1) + 5

Oh can you see that " a(1) " we know what it is :

a(1) =  - 3

So :

a(2) = 3 \times ( - 3) + 5

a(2) =  - 9 + 5

a(2) =  - 4

_____________________________________________

<h2>n = 3</h2>

put 3 instead of blablabla...

a(3) = 3a(3 - 1) + 5

a(3) = 3a(2) + 5

Oh we just found a(2) so :

a(3) = 3( - 4) + 5

a(3) =  - 12 + 5

a(3) =  - 7

_____________________________________________

<h2>n = 4</h2>

put 4 ...

a(4) = 3a(4 - 1) + 5

a(4) = 3a(3)  + 5huh a(3)

a(4) = 3( - 7) + 5

a(4) =  - 21 + 5

a(4) =  - 16

_____________________________________________

So the first four term of the sequence is :

- 3 \: , \:  - 4 \: , \:  - 7 \: , \:  - 16

There u go...

Have a great day ♡

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Let V=ℝ2 and let H be the subset of V of all points on the line 4x+3y=12. Is H a subspace of the vector space V?
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No, it isn't.

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We have V=IR^{2} and let H be the subset of V of all points on the line

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We need to find if H is a subspace of the vector space V.

In IR^{2} all the possibilities for own subspace of the vector space IR^{2} are :

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We know that H is the subset of IR^{2} of all points on the line 4x+3y=12

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A company produces and sells CDs. There is a fixed cost of $2000 and $5 per CD manufactured. The manufacturer sells each CD for
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A gardener already has four and one over 2 ft of fencing in his garage. He wants to fence in a square garden for his flowers. Th
NikAS [45]
<h2>Answer:</h2>

6\frac{1}{2}<u>, "six and one over two ft".</u>

<h2>Step-by-step explanation:</h2>

Let's considerate the fact that the garden has a <u>square shape</u>.

<h3>1. Finding values of interest.</h3>

Amount of fence that the gardener already has: 4\frac{1}{2} ft.

Length of one side: 2\frac{3}{4} ft.

If one side measures 2\frac{3}{4} ft, and the square garden has 4 sides of equal length, because it's a square, then we must multiply the measure of one side by 4 to find the total length of fence needed:

4*(2\frac{3}{4})=\\ \\4*(2+\frac{3}{4})=\\ \\(4*2)+(4*\frac{3}{4})=\\ \\8+(\frac{12}{4} )=\\ \\8+3=\\ \\11

<h3>2. How much more does he need?</h3>

The gardener already has  4\frac{1}{2} , which equals 4 + \frac{1}{2}. Hence, the difference between the amount needed and the amount that the gardeneralready has will give us the remaining amount required. Let's do that:

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<h3>3. Express your result.</h3>

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