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marysya [2.9K]
3 years ago
10

Find the area of the figure. please have an explanation

Mathematics
2 answers:
Furkat [3]3 years ago
7 0

Answer:

Step-by-step explanation:

\text{The area of a circle is }\pi r^2\text{ so the area of half a circle is }\frac{\pi r^2}{2}\\ \\ A=\frac{\pi 11^2}{2}\\ \\ A=\frac{3.14(121)}{2}\\ \\ A\approx 189.97cm^2

LiRa [457]3 years ago
4 0

Answer:

760.25

Step-by-step explanation:

The formula for the surface area of a sphere is A=4πr².

r=the radius, or half of the diameter, of the circle.

when you plug in the radius and answer the formula, you should get 1520.5.

You should then divide it by 2 since we are trying to find half of the circle.

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Segment AE is a median for Triangle ABC.
Shalnov [3]

Step-by-step explanation:

BC = BE + CE...(\because B-E-C)  \\  \\  \therefore \: BC = 3x - 5 + x + 1 \\  \\ \therefore \: BC = 4x - 4 \\  \\  \huge \red{ \boxed{ \therefore \: BC = 4(x - 1)}}

4 0
4 years ago
Ex: You invested $1000 in a savings account. The account pays 5% annual interest.
aniked [119]

Answer:

I KNOW THE ANSWER ITS  5000

Step-by-step explanation:

SUB to sir sir bmgo

6 0
3 years ago
Find the slope of the line passing through the points (7, -1) and (2, -8).
Ugo [173]

Answer:

\frac{4}{5}

Step-by-step explanation:

We have to use the slope formula: m = slope

(x1, y1) = coordinates of the first point in the line

(x2, y2) = coordinates of the second point in the line

Here, we'll plug into our given points to give; \frac{7--1}{2--8}

Solving this, we get, \frac{8}{10}, but we're not done, as this fraction can be reduced.

Diving both sides of the fraction by 2, we get our final answer of \frac{4}{5}.

8 0
3 years ago
Use the distributive property to write an equivalent expression to 2(n + 5)​
klemol [59]

Answer:

2n + 10.

Step-by-step explanation:

2(n + 5)

= 2 * n + 2 * 5

= 2n + 10.

Hope this helps!

8 0
3 years ago
Read 2 more answers
using the pythagorean theorem find the area of an equilateral triangle whose side measures 7 units find the area to the nearest
Molodets [167]
 <span>If you have an equilateral triangle, the median is also the altitude so - That means that if you draw altitude, it will bisect the base of the triangle and meet at two right angles. That gives you two of the measurements for the right triangle - the side (6) hypotenuse, and the base (3). You can then figure out the height using the Pythagorean as you have the a and the c for the theorem. Then you can use 1/2 base times height to find the area. 
</span>
7 0
3 years ago
Read 2 more answers
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