3 years ago

Please help me factorise this problem: x^2+4x+4

Mathematics

2 answers:

Sophie [7]3 years ago

6 0

The answer is (X+2)^2

tiny-mole [99]3 years ago

3 0

(x+2)^2

Factors of 1 (from 1x) = 1
Factors of 4 (constant) = 1,2,4

You want to find what numbers add 4 and multiply to 4. If I do 2+2, it equals 4. If I do 2*2, it equals 4. Therefore: (x+2)(x+2) = (x+2)^2

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2. Find the area and circumference of the circle to the right.<br>16.6 m<br>

adoni [48]

Answer:

AREA:

$A=216.42m^2$

CIRCUMFERENCE:

$C=52.15m$

Step-by-step explanation:

The formula that is used to calculate the area of a circle is:

$A=\pi r^2$

Where "r" is the radius of the circle.

The formula for calculate the circumference of a circle is:

$C=2\pi r$

Where "r" is the radius of the circle.

Then, you need to find the radius. This is:

$r=\frac{16.6m}{2}=8.3m$

Substituting the radius, you get that the area and the circumference are:

AREA:

$A=\pi (8.3m)^2=216.42m^2$

CIRCUMFERENCE:

$C=2\pi (8.3m)=52.15m$

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3 years ago

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Drupady [299]

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6:7 or 6/7

Ratio of all books (13) to used books (7) is

13:7 or 13/7

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3 years ago

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7nadin3 [17]

Answer:

Step-by-step explanation:

Simplifying

x = 8 + 3y

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2 years ago

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