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Tema [17]
3 years ago
7

Peter needs 20 meters of wood for his backyard. The nursery only sells

Mathematics
1 answer:
Kisachek [45]3 years ago
8 0

Answer:

A

Step-by-step explanation: 20 x 3.28 is 65.6 round it up its 66

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If -1 is one of the zeroes of py 3x^3-5x^2-11x-3 find other zeroes
katrin2010 [14]

Given:

The function is:

y=3x^3-5x^2-11x-3

It is given that -1 is a zero of the given function.

To find:

The other zeroes of the given function.

Solution:

If c is a zero of a polynomial P(x), then (x-c) is a factor of the polynomial.

It is given that -1 is a zero of the given function. So, (x+1) is a factor of the given function.

We have,

y=3x^3-5x^2-11x-3

Split the middle terms in such a way so that we get (x+1) as a factor.

y=3x^3+3x^2-8x^2-8x-3x-3

y=3x^2(x+1)-8x(x+1)-3(x+1)

y=(x+1)(3x^2-8x-3)

Again splitting the middle term, we get

y=(x+1)(3x^2-9x+x-3)

y=(x+1)(3x(x-3)+1(x-3))

y=(x+1)(3x+1)(x-3)

For zeroes, y=0.

(x+1)(3x+1)(x-3)=0

(x+1)=0 and 3x+1=0 and x-3=0

x=-1 and x=-\dfrac{1}{3} and x=3

Therefore, the other two zeroes of the given function are -\dfrac{1}{3} and 3.

3 0
3 years ago
Please help me out i will mark brainliest!
asambeis [7]

Answer:

y=-x+2

x+y=2

Step-by-step explanation:

hopefully this helps :)

8 0
3 years ago
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Over a two hour time period a snail moved <br> 46<br> inches. How far is this in yards?
Anton [14]
It would be exactly 1.2778 yards. 
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Make three contrectic circles with radius is 2.4cm,3.8cm and 5.4cm​
wariber [46]

Answer:

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3 years ago
Please Help will give points PLEASE!!!!
Paul [167]

Answer:

I to 16

Step-by-step explanation:

The first point was put on one and the last was on 16

8 0
3 years ago
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