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zhuklara [117]
4 years ago
14

Which of the following is equal to the rational expression when x -2 or -1? x^2-4/(x+2)(x+1)

Mathematics
1 answer:
Orlov [11]4 years ago
8 0

Answer:

(x+2)(x+1)

Step-by-step explanation:

Assuming im interpreting this correctly, it should be (x+2)(x+1), since if you plug in -2 and -1, it will give you 0, which is the answer.

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If someone could help me that would be great
sasho [114]

Answer:

please mark me as brainlist please

Step-by-step explanation:

Correct option is B)

The circumference of the circle is 96 units.

Therefore, 2π×r=96

⇒r=

2×22

96×7

=15.27 units

Now, in the quadrilateral OLMN,∠OLM+∠LMN+∠MNO+∠NOL=360

o

Given that LM and MN are tangents to the circle, ∠OLM=∠ONM=90

o

∴∠NOL=360−90−90−60=120

o

The length of arc is given by rθ where θ is the angle made by the arc at the centre in radian.

Thus, arc length LN=15.27×

180

120π

=31.98

8 0
3 years ago
How does knowing 1/5 of 10 help you find 3/5 of 10? Draw a picture to explain your thinking.
Alborosie

Answer:

If the problem is,

\frac{1}{5}\text{ of }10

By finding it,

Take a 5 box grid in which each box represents 1 unit,

Then take 1 box of this grid,

Repeat this step,

Finally, Add them,

We get,

A grid having 10 boxes with 2 taken boxes,

Thus, \frac{1}{5}\times 10=2

When we do these steps for three grids we will get \frac{3}{5}\times 10,

That is, by multiplying the result of \frac{1}{5}\times 10 by 3 we will obtain \frac{3}{5}\times 10

\frac{3}{5}\times 10=3\times (\frac{1}{5}\times 10)=3\times 2=6

7 0
3 years ago
Complete the square for x^2-8x and write as the square of a binomial.
tatuchka [14]
=x^2-8x+16-16
= (x-4) ^2-16
=[(x-4) -4][(x-4) +4]
=(x-8) x
6 0
3 years ago
What is the circumference of the circle is 10 cm , to the nearest tenth of a centimeter
spin [16.1K]

Hope this helps you and good-luck

5 0
3 years ago
How do I write 282639 in expanded form and in word form
charle [14.2K]

Answer:

200,000 + 80,000 + 2,000 + 600 + 30 + 9 = 282,639

Or

Two hundred, eighty - two thousand, six hundred, thirty - nine.

6 0
4 years ago
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