1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Pani-rosa [81]
2 years ago
7

8. For circle A, the circumference is 31.4 ft. What is the area? Use 3.14 for pi

Mathematics
2 answers:
telo118 [61]2 years ago
7 0

Answer:

\huge\boxed{\sf A = 78.5\ ft\²}

Step-by-step explanation:

Circumference = C = 31.4 ft

We know that,

<h3>C = 2πr</h3>

Where, r is the radius

31.4 = 2(3.14)r

31.4 = 6.28(r)

Divide 6.28 to both sides

31.4/6.28 = r

5 ft. = r

<h3>r = 5 ft.</h3>

Now,

<h3><u>Finding area:</u></h3>

A = πr²

A = (3.14)(5)²

A = (3.14)(25)

<h3>A = 78.5 ft²</h3>

\rule[225]{225}{2}

tensa zangetsu [6.8K]2 years ago
7 0
To solve this problem, you need to find a radius... Circumference=2(3.14)(r)

2(3.14)=6.28

31.4/6.28=5=radius

A=(3.14)(r^2)

A=(3.14)(5^2)=78.5

Area= 78.5 ft^2
You might be interested in
Eva bought 3 rainbow trout for dinner. They weighed 3 Ib 5 oz, 2 Ib 12 oz, and 3 Ib 8 oz. She cut off the heads and the tails an
Y_Kistochka [10]

The amount of waste is 22 oz

<h3>How to determine the waste amount?</h3>

The weights of the 3 rainbow trouts are:

3 Ib 5 oz, 2 Ib 12 oz, and 3 Ib 8 oz.

The total weight is:

Total = 3 Ib 5 oz + 2 Ib 12 oz + 3 Ib 8 oz

Evaluate the sum

Total = 8 Ib 25 oz

The amount she was left with is 8 Ib 2 oz

Subtract this amount from the total

Waste = 8 Ib 25 oz - 8 Ib 2 oz

Evaluate

Waste = 22 oz

Hence, the amount of waste is 22 oz

Read more about sum and difference at:

brainly.com/question/10739762

#SPJ1

8 0
2 years ago
What is the perimeter of the smaller triangle?
Luden [163]

Answer:

14 mm

Step-by-step explanation:

Just as the little side is 1/4 of the larger side , so is the perimeter

1/4 * 56 = 14 mm

6 0
2 years ago
Mathematics question help
Nat2105 [25]

Distance Formula: \sqrt{(x_{2} - x_{1})^2 + (y_{2} - y_{1})^2}

Point 1: (9,0)

Point 2: (5,-8)

D = sqrt[ (5 - 9)^2 + (-8 - 0)^2 ]

D = sqrt[ (-4)^2 + (-8)^2 ]

D = sqrt[ 16 + 64]

D = sqrt(80)

Hope this helps!

4 0
2 years ago
Read 2 more answers
Please this is your answer.​
Effectus [21]

Answer:

10. it is correct it is 24

11. 21

Step-by-step explanation:

I could not see the answer but it should look like this:

11.6-3(3-[2-3]-10)-3

6-3(3-[-1]-10)-3

6-3(3-(-1)-10)-3

6-3(4-10)-3

6-3(-6)-3

6-(-18)-3

(6-(-18))-3

24-3

21

4 0
2 years ago
Read 2 more answers
1. if a = 16 and b= 12, find c
klasskru [66]

Answer:

20

Step-by-step explanation:

The pythagorean theorem states that

a^2+b^2=c^2

So 16^2 + 12^2 = c^2\\256+144 = c^2\\400 = c^2

You would then do

400 = c^2\\\sqrt{400} = c

Because a square root is the opposite of a square.

\sqrt{400} = 20

because 20 * 20 = 400

7 0
3 years ago
Other questions:
  • What is X and A??? The have to equal the same thing, but one is multiplying and one is adding (picture)
    9·1 answer
  • What is a expression that represents the sum of 7 and x
    6·1 answer
  • 7 over 8 plus 4 over nine
    15·1 answer
  • Y= x^2 + 2x + 7 in vertex form
    15·2 answers
  • ASAPPPP
    11·2 answers
  • Income tax returns show that the mean income of self-employed persons in a particular year was £15,000, with a standard deviatio
    8·1 answer
  • Type "me"if you're religion is Christian.​
    5·2 answers
  • Question 10 PLEASE HELP FAST ILL GOVE BRAINLIST AND EXTRA POINTS MAKE SURE YOU EXPLAIN YOURSELF
    11·2 answers
  • Math riddle!
    10·2 answers
  • What are the dimensions of the poster at one-half its current size?
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!