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ahrayia [7]
3 years ago
8

Find the area of the circle with a radius of 2 cm.

Mathematics
2 answers:
Anna11 [10]3 years ago
6 0

Answer:

a 12.56 cm2

Step-by-step explanation:

area = πr² or I'd

step 1: substitute (plug in) for r which in here is 2

π(2)²

step 2: follow order of operations

(2)²= 4 *π= 12.56

P- parenthesis

E-exponent

MD- multiply and divide from left to right

AS- add and subtract from left to right

PSYCHO15rus [73]3 years ago
5 0
The answer is A (12.56) i know for a fact.
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Which graph represents the solution set of the system of inequalities? {y&lt;−3x−2y<br> y≤x−2
irina1246 [14]

Answer:

Option 1

Step-by-step explanation:

In each inequality we have the equation of a line.

The first step in solving this problem is to identify each line in the figures.

To do this, we willient your cut points.

y = x-2

We do y = 0

0 = x-2

x = 2. This line cuts the x-axis at x = 2.

Now we do x = 0

y = -2.

This line cuts the y-axis in y = -2.

Now we can identify this line in the figure.

The inequality is:

y≤x - 2

Then the region that represents this inequality are all the points below the line y = x-2 and also those that belong to the line.

Try for example the point (0, -4) that is below this line.

-4≤0-2

-4≤-2. The inequality is met.

We do the same for the other line:

y<-3x - 2

y = -3x-2.

The cut points are:

2 = -3x

x = -2 / 3

y = -2

Locate in the graphs the line that meets these characteristics.

The region understood by this inequality are all points below the line

y = -3x-2 and which, in turn, are below the line y = x-2.

Once again, the point (-4.0) complies with both inequalities.

Identify these characteristics in the options, and you will see that the correct option is the first

4 0
3 years ago
Read 2 more answers
6x + 4<br> What tipe of polynomial is this one?
Mkey [24]

Answer:

This is a binomial.

Step-by-step explanation:

Bi means two. Therefore, since this polynomial only has two integers it is a binomial.

5 0
2 years ago
Sin tita + sin ^2 tita = 0
AnnyKZ [126]

Answer:

tita = 0 , 180, 270, 360.   ( tita =  0   ≤ x ≤ 360).

Step-by-step explanation:

sin tita + sin ^2 tita = 0

sin tita( sin tita + 1) = 0

sin tita = 0, - 1.

For angles between 0 and 360 inclusive  sin = 0 gives 0, 180 and 360 degrees.  The angle whose sine is -1 is 270 degrees.

tita = 0 , 180, 270, 360.

3 0
3 years ago
On a number line the directed line segment from Q to S has endpoints Q at -14 and S at 2. Point R partitions the directed line s
liq [111]

Answer:

Step-by-step explanation:

The distance from Q to S is 2 - (-14), or 16.

We start at point Q.  Note how 3 and 5 add  up to 8, which allows us to write:

R = Q + (3/8)(16), or R = -14 + 6, or R = -8.

From R to S it is (5/8)(16), or 10 units.

The directed line segment is partitioned into segments of lengths 6 and 10, whose combined length is 16, as expected.

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For question 22 please pick 1,2,3 or 4
RSB [31]
It’s gonna be number three :))
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