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Drupady [299]
3 years ago
15

How do you find the formula of a half circle?

Mathematics
2 answers:
Alik [6]3 years ago
4 0
Full circle
Circumference = 2*pi * r 
Circumference = pi * d 

Area = pi r * r = pi * r^2
Area = pi d^2 / 4

Half circle
Circumference = pi * r
Circumference = pi * r / 2

Area = pi  r^2 / 2
Area = pi d^2/8

The answer depends on what you are looking for and what you are given. But those are the only common formulas I can think of at the moment.
Kazeer [188]3 years ago
4 0
Ok don't report me but this answer is a blank because I want the other person to have brainliest NP
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( 69 points + brain cuz why not xd )
wolverine [178]

Answer:c

Step-by-step explanation:

The area of parallelogram A is;

Area = 312²

A = bh = 13 · 24 = 312

The area of parallelogram B is;

Area = 195²

A = bh = 15 · 13 = 195

The area of parallelogram B is;

Area = 384²

A = bh = 24 · 16 = 384

4 0
1 year ago
The width of a vegetable garden is
sukhopar [10]

Answer: So, the length (L) = 7 3/4 ft = 31/4 (as an improper fraction)

 

the width (W)  = (1/3)xL

 

So the width = 1/3 x (31/4) =

31/12 = 2  7/12 feet

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
I need help on these 2 problems
KIM [24]

Answer:

The answer to 17 is -8. 2+ = 10 - 12 = -2*4 = -8.

The answer to 18 is 28. 4^2 = 16, 7 + 1 = 9 + 3 = 12, 16 + 12 = 28.

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
How many solutions does the following equation have? ln(x2 + 4x − 5) = 0
lisov135 [29]
Alrighty
remember
log_a(b)=c means a^c=b
and
ln(x)=log_e(x)
and
x^0=1 for all real values of x
so

ln(x^2+4x-5)=0 means
log_e(x^2+4x-5)=0 means
e^0=x^2+4x-5 which simplifies to
1=x²+4x-5
minus 1 both sides
0=x²+4x-6
use quadratic formula or complete the square
x=-2+\sqrt{10} and x=-2-\sqrt{10}
2 solutions
7 0
3 years ago
4 Ayla s is paid $15 20 per hour for a 34 hour week. April has the same weekly pay but works 38
VashaNatasha [74]

Find Atlas weekly pay by multiplying rate by hours:

15.20 x 34 = 516.80 a week.

Now to find Apri’s rate divide the weekly pay by hours:

516.80 / 38 =$13.60 per hour

5 0
3 years ago
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