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
dusya [7]
3 years ago
9

"Find the area and the circumference of a circle with diameter of 8m"

Mathematics
2 answers:
expeople1 [14]3 years ago
4 0

Radius = diameter/2 = 8/2 = 4m

Area of a circle = pi x r^2 = pi x 4^2 = 16pi m^2 ( exact area) or 50.27 m^2

Circumference = pi x diameter = 8pi m ( exact) or 25.12 m

Bumek [7]3 years ago
4 0

Answer:

C = 25.12 A = 50.24

Step-by-step explanation:

Circumference formula = dπ

Area formula = πr^2

<u>Circumference:</u>

Plug in:

8π

8 × 3.14 = 25.12

<u>Are</u><u>a</u>:

8/2 = 4

r = 4

Plug in:

πr^2

π4^2

16π

16 × 3.14 = 50.24

Hope this helped.

You might be interested in
Decimal equivalent to. 78/11
Ganezh [65]
Just divide 78 with 11, 7.090909090909091.
3 0
4 years ago
What is the intermediate step in the form (x+a)^2=b(x+a)
Step2247 [10]

Answer:

The intermediate step are;

1) Separate the constants from the terms in x² and x

2) Divide the equation by the coefficient of x²

3) Add the constants that makes the expression in x² and x a perfect square and factorize the expression

Step-by-step explanation:

The function given in the question is 6·x² + 48·x + 207 = 15

The intermediate steps in the to express the given function in the form (x + a)² = b are found as follows;

6·x² + 48·x + 207 = 15

We get

1) Subtract 207 from both sides gives 6·x² + 48·x = 15 - 207 = -192

6·x² + 48·x = -192

2) Dividing by 6 x² + 8·x = -32

3) Add the constant that completes the square to both sides

x² + 8·x + 16 = -32 +16 = -16

x² + 8·x + 16 = -16

4) Factorize (x + 4)² = -16

5) Compare (x + 4)² = -16 which is in the form (x + a)² = b

7 0
3 years ago
Alyssa takes part in the triathlon. She cycles 4/5 of the route, runs 7/8 of the route, and swims the rest of the way. She swims
hjlf

Answer:

12 miles

Step-by-step explanation:

Alyssa takes part in the triathlon. She cycles 4/5 of the route, runs 1/8 of the route, and swims the rest of the way. She swims 0.9 miles. Find the total distance of the triathlon route.

Total distance Alyssa cycled and ran =

\frac{4}{5} + \frac{1}{8}

\frac{32 + 5}{40} = \frac{37}{40}

Distance she swam =  1 - 37/40 = 3/40

3/40 of the distance is 0.9

the total distance = 40/3 x 0.9 = 12 miles

3 0
3 years ago
A basket contains 11 pieces of fruit for apples five oranges and two bananas Jonas takes a piece of fruit at random from the bas
wariber [46]

Answer:

the chances are 5/11

Step-by-step explanation:


4 0
3 years ago
At 8:00 am yesterday, the temperature was 11°C. By noon, it was 3º warmer. By
morpeh [17]

Answer:

It would be 5 degrees hope this helped

6 0
3 years ago
Other questions:
  • 32.5% of what is 12.48?
    8·1 answer
  • Elimination method for -4x-2y=-12 4x+8y=-24
    11·2 answers
  • Find the value of x
    13·1 answer
  • Are the two triangles similar? How do you know?
    9·2 answers
  • What is the absolute value of 1-8i ?
    14·1 answer
  • Evelyn wants to pour 2 3/4 cups of water into a pot. She only has 1/2 cup measuring cup. How many times must she fill the 1/2 cu
    7·1 answer
  • Order from greatest to least: 2 6/8, 1 7/12, 2 5/6
    15·2 answers
  • Can you please help answer the question in the photo?
    11·1 answer
  • Confused on how to do this, care to help anyone?
    13·1 answer
  • (4 x 100,000) + (6 x 10.000) =
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!