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Rzqust [24]
3 years ago
7

What is the area of a circle, if it's radius is 2cm?

Mathematics
1 answer:
slega [8]3 years ago
8 0
25.13cm^2 or 8pi. The radius of a circle is 2 x pi x r^2. R is the radius. 2 x pi x 2^2cm -> 2 x pi x 4cm -> 8cm x pi -> 25.13cm^2. Leaving the answer in terms of pi would be 8pi.
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Is there enough information to prove the pair of triangles congruent? If so, state the postulate or theorem you would use to pro
Arturiano [62]

You are correct. We use SSS to prove the triangles congruent. The tickmarks tell us which sides are equal to one another. The third pair of congruent sides are the overlapping shared segments (which are congruent due to the reflexive property).

8 0
3 years ago
The coordinate grid shows points A through K. What point is a solution to the system of inequalities? y < −2x + 10 y < 1 o
VashaNatasha [74]

The graph that represents the system of inequalities will be y ≤ −2x + 3; y ≤ x + 3

<h3>How to depict the graph?</h3>

The equation of the line will be:

y = mx + b

In this case, we can observe that both lines have the same y intercept and that the lines are solid.

Hence, graph that represents the system of inequalities will be y ≤ −2x + 3; y ≤ x + 3. The graph is attached.

When the coordinate grid shows points A through, the point that is a solution to the system of inequalities is negative 6 point G at negative 3, negative 10 point H at negative 4.

Finally, the graph that represents the following system of inequalities: y ≤ −3x + 1 y ≤ 1 over 2x + 3 is the graph of two intersecting lines where both lines are solid.

One line of x passes through points negative 2, 2 and 0, 3 and is shaded above the line. The other line g of x passes through points 0, 1 and 1, negative 2 and is shaded above the line.

Learn more about graphs on:

brainly.com/question/19040584

#SPJ1

7 0
2 years ago
Find the area of a circle that has a diameter = 18
ki77a [65]

Answer:

About 254.469 square units

Step-by-step explanation:

To find the area of a circle, you need to multiply the square of the radius by pi. To find the radius of a circle, you need to divide the diameter by 2, which in this case is 18/2=9. Now, you can plug it into the formula to find that the area of this circle is \pi \cdot 9^2 \approx 254.469. Hope this helps!

4 0
3 years ago
1.The entry tickets at a community fair cost $5 for children and $10 for adults. On a certain day 1000 people entered in the fai
ZanzabumX [31]

Answer:

568 ADULTS

284 CHILDREN

Step-by-step explanation:

5C+10A=7100

A=2C

5C +10(2C)=7100

5C+20C=7100

25C=7100

C=284

A=2C

A=568

BRAINLIEST???

8 0
3 years ago
Here's a question for the day, it's simple but it needs explaining.
GuDViN [60]
It is used to see if a graph represents a function because if there is 2 dots or intersecting lines within the other lines then it is not a function. if there is only one line or dot, then yes, it is a function. hope i explained it well.
5 0
3 years ago
Read 2 more answers
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