What is the area of a semicircle that has a radius of 20 feet?

Answers

Answer 1

Answer:

[tex]200\pi[/tex] or 628.3185

Step-by-step explanation:

Area of a semicircle is equal to [tex]\frac{\pi r^{2}}{2}[/tex]. So, when the radius is 20, the area of the semicircle will be [tex]\frac{\pi (20)^{2} }{2} =\frac{400\pi }{2} =200\pi =628.3185[/tex].


Related Questions

I need help I'm confused

Answers

Answer:

KV=21

Step-by-step explanation:

please help me! i'll mark you brainliest
20 points, (maths)

Answers

Answer:

5/6 of the time or 50 minutes

Step-by-step explanation:

Yoo Helpppp meee outt

Answers

Answer:

I going to go with B $2378.30

Answer:

I going to go with B $2378.30

Step-by-step explanation:

what is the answer of (1/100)+ (1.6)(2.1)​

Answers

Answer:

3.37

Step-by-step explanation:

I am not very sure but this would be the answer.

the answer isssssssss 3.37

It would be very nice if you could evaluate the expression for ya homie


-63/(-7)+6

Answers

Answer: =15

Step-by-step explanation: Hope this help :)

-63/-7+6

=63/7+6/1

=9/1+6/1

=9+6/1

=15

Is 1.09 greater than 1.11 Or, Is 1.11 greater than 1.09?

Answers

Step-by-step explanation:

1.11 greater than 1.09

Hope it helps ☺️

Answer:

1.11 is greater than 1.09

hope it help.

mark me as brainlists pls

The storage box for a flag is in the shape of a triangular prism. What is the surface area of the box?

Answers

*see attachment for the diagram of the triangular prism box

Answer:

528.8 in.²

Step-by-step explanation:

Surface area of triangular prism = 2(BA) + P*H

Area of triangular base (BA) = ½*b*h

b = 24.5 in.

h = 12 in.

BA = ½*24.5*12 = 147 in.²

Perimeter of triangular base = 24.5 + 17.1 + 17.1 = 58.7 in.

Height of prism = 4 in.

Plug in the values into the surface area formula:

Surface area of prism = 2(147) + 58.7*4

= 294 + 234.8

= 528.8 in.²

2y =x
Pls help, im taking a test, pls answer quick! Thx!

Answers

1/2
is the answer because Graph the line using the slope and y-intercept, or two points.

1
2
y-intercept:
(
0
,
0
)


please help

Graph the following inequalities

Answers

Answer:

1 is closed circle with arrow to the left on 4, 2 is open circle with arrow to the left on 4, I believe

Hank has 3 kilograms of candy. How many grams of candy does he have?

Answers

Answer:

3,000 grams of candy

Step-by-step explanation:

1 gram = 1,000

so, 3 (1,000)= 3,000

Answer:

3000 grams

Step-by-step explanation:

to convert from kilograms to grams we multiply by 1000

so 3*1000=3000g

Which triangle is a translation of triangle X?
triangle A
triangle B
triangle C
triangle D

Answers

Answer:

triangle b

Step-by-step explanation:

triangle b has the same dimensions and corresponding angles. which means it is a rigid transformation which is what a translation is

Answer:

Triangle b

Step-by-step explanation:

(p^-1 Q^3 R^-5 2^2)^2/ P^3 Q^7 R^-5 S^-4
a. P^4 Q^2 R^4 S^6
b. S^8/P^5 Q^1 R^5
c. P^3 Q^6 R^1 S^9
d. P^2 S^4/Q^5 R^10

Answers

Answer:

C

Step-by-step explanation:

Write an expression to represent:
Nine more than the quotient of two and a number x

Answers

Answer:

9+(2/x)

Step-by-step explanation:

25 points pls help

which of the following rational functions is graphed below?

Answers

Step-by-step explanation:

The answer is C I gotchu .....

Answer:

C.

Step-by-step explanation:

(✿◡‿◡) <-- she wants Brainliest

Tell ur mom she did a good job makin such a cute girl ✪ ω ✪ バイバイ~。!

What is £1.30 increased by 20%

Answers

£1.56 because 20 % of £1.30 = 26 p so 26 + 130 = £1.56

Step-by-step explanation:

20 % of 1.30 is 1.30×20 / 100 = 0.26

1.30 increased by 20% is 1.30+0.26= 1.56

Mhanifa please help i will mark brainliest i need this done ASAP!

Answers

First one is the first answer with (x+2,y-8)
Second is <8 : 65

Answer:

(x, y) → (x - 2, y + 8)m∠8 = 65°

Step-by-step explanation:

Q1

The translation is the difference between two corresponding points:

-2 - 0 = 26 - (-2) = 8

Correct option is C

(x, y) → (x - 2, y + 8)Q2

∠8 and 115° are supplementary and sum to 180°

m∠8 = 180° - 115° = 65°

On a​ map, 1 inch equals 5 miles. Two cities are 6 inches apart on the map. What is the actual distance between the​ cities?

Answers

Answer:

30

Step-by-step explanation:

(5*6)/1

Angle B measures 60°. What is the measure of the angle that is complementary to angle B? 30° 60° 120° 180°

Answers

Answer:

30

Step-by-step explanation:

Complementary angle to B = 90 - 60 = 30

Answer:

A on edge

Step-by-step explanation:

2. What is the product of -2x^3+c-5 and x^3-3x-4 Show your work

Answers

Answer:

Multiply across the parenthesis and combine like terms

Explanation:

(

x

2

)

×

(

3

x

4

)

=

x

×

(

3

x

4

)

2

(

3

x

4

)

x

×

(

3

x

4

)

2

(

3

x

4

)

=

3

x

2

4

x

6

x

+

8

3

x

2

4

x

6

x

+

8

=

3

x

2

10

x

+

8

Step-by-step explanation:

hope this helps

Milo wants to roll epoxy on his garage floor. In order to do this he needs to know the area of his rectangular-shaped garage. The measurements are 20+ (radical) 3 feet by 20+ (radical) 3 feet.
What is the area of his garage floor?
(Remember, the formula for the area of a rectangle is A = lw.)
Please help. I've been stuck on this problem. :)

Answers

Answer:

its the first one

Step-by-step explanation:

Answer: it is A. just got it right

Step-by-step explanation:

The class was given a test that had a total of 125 points possible. A student then earned an 84% on the test. What are the total points that this student earned, out of the possible 125 points?
Help me please!!

Answers

Answer:

Step-by-step explanation:

84/100 = x/125

x = 105 points

SOS MSENVJBQJBVKJQBH I NEED HELP- math is way to hard i think im gonna drop out lols ​4(5 + 2x) – 5 = 3(3x + 7)

Answers

Answer: x= -6 I'm not sure about this though.

Step-by-step explanation:

Answer:

[tex]4(5 + 2x) - 5 = 3(3x + 7)[/tex]

[tex]20 + 8x - 5 = 9x + 21[/tex]

[tex]15 + 8x = 9x + 21[/tex]

[tex]9x + 21 = 15 + 8x[/tex]

[tex]9x - 8x = 15 - 21[/tex]

[tex]x = - 6[/tex]

Sharon travels a total of 80 miles to get to school each week. araushi travels 40%of the miles Sharon travels to get to school each week. how many miles does araushi travel to school each week ​

Answers

The answer is 32 miles

I need help here is the problem

Answers

Answer:

12.96pi

Step-by-step explanation:

area = r^2 *pi

= 3.6^2 * pi

= 12.96pi

Step-by-step explanation:

area of a circle is = π r²

π × (3.6)²

= π × 12.96

= 12.96π

+
Scale of drawing
1 in: 6 ft
Answer the following.
(a) The wingspan of the real airplane is 60 feet.What is the
wingspan of the airplane in the scale drawing?
360 inches
$
(b) In the scale drawing, the length of the airplane is 8 inches.
What is the length of the real airplane?
48 feet

Answers

Answer:

tell ur teacher am not sure about the question

helpppppppp please i dont understand ​

Answers

Answer:

(a) 64 days

(b) 2 phones calls

Step-by-step explanation:

First blank is 64 (16/8=2 128/64=2)
Second blank is 2 (8/8=1 16/8=2)


Find the exact value of x.

Answers

Answer:

The exact value of x will be [tex]\sqrt{52}[/tex] or 7.2111

Step-by-step explanation:

Hope this Helped

It would probably be 7.2111

50 points! Mhanifa please help! I keep asking and you dont answer lots of them. I will mark brainliest! Random answers will be reported

Answers

Answer:

Angle addition postulate

Q1m∠FDE + m∠CDE = m∠FDC2x + 5° + 10x - 3° = 62°12x = 60°x = 5°m∠FDE = 2*5° + 5° = 15°m∠CDE = 10*5° - 3° = 47°

Correct choice is D

Q2m∠BOC + m∠COD = m∠BOD26° + m∠COD = 46°m∠COD = 46° - 26°m∠COD = 20°Q3

Midpoint is equidistant from the endpoints

Given points:

M(-2, 7), A(5, 3), B(x, y)

Use midpoint formula:

(x + 5)/2 = -2 ⇒ x + 5 = -4 ⇒ x = -9(y + 3)/2 = 7 ⇒ y + 3 = 14 ⇒ y = 11

Point B is (-9, 11)

can somebody please help :)

Answers

Answer:

8+21x one

6+18x one

and the 4x-6 one have on solutions

help i dont get it pelase

Answers

Step-by-step explanation:

(-1,3)

just move the point over 5 lines and then up 4 lines. or

4-5 = -1

-1 +4=3

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