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
olga nikolaevna [1]
3 years ago
13

Find the area of a circle with a diameter of 56 millimeters.

Mathematics
1 answer:
ANEK [815]3 years ago
6 0

Answer: 784π mm²

Step-by-step explanation: To find the area of a circle, start with the formula for the area of a circle which is shown below.

Area = πr²

Notice that here, we're given the diameter instead of the radius.

Remember that the radius is equal to half of the diameter. So the radius of this circle will be equal to half 56 millimeters or 28 millimeters.

So plugging into the formula, we have (π)(28 mm)².

A common mistake is to plug 56 millimeters into the formula but remember that we must plug in the radius and not the diameter.

Multiplying, (28 mm)² is equal to (28 mm)(28 mm) or 784 mm².

So we have 784π mm².

So the area of the circle is 784π mm².

You might be interested in
Which equation can you use to solve for the volume of the cake?
lesantik [10]

Answer:

C. (40 × 60 × 10) + (30 × 60 × 10) = V

Step-by-step explanation:

Picture of the cake can be found in the attachment below :

To solve, we resolve the cake into two distinct boxes :

The lower which is lateral sits parallel, whose volume, = (length * width * height) = (60 * 30 * 10)

And the other which sits vertically ;

Volume = (length * width * height) = (10 * 60 * 40)

Then, we add;

Overall volume:

(60 * 30 * 10) + (10 * 60 * 40)

7 0
3 years ago
A person can walk 3 1/4 miles in one hour. How many miles can the person walk in 1 3/4 hours?
weqwewe [10]
Since Emily is walking at a constant speed, we can solve this using proportions, equating ratios of distance/time.

The first ratio is 3/4 miles/1/4 hour
The second ratio is 1 mile/ x hour

Equating the two ratios: 3/4 / 1/4 = 1/x
3 = 1/x
x = 1/3 hour
3 0
3 years ago
What is the slope and y-intercept of this<br> equation? y = 5x
denis-greek [22]

Answer:

Slope- 5  y-int- (0,0)

Step-by-step explanation:

y=mx+b, where m=slope and b=y-int. m=5, and we don't see a b, so it must be 0.

8 0
3 years ago
60203 round to nearest ten
Bas_tet [7]
60200 since the three rounds down
5 0
3 years ago
Read 2 more answers
In Mr. Harold's class there are 12 students. They each have 5 pencils. Some of the students, s, each lost 2 pencils. Now, the st
Katena32 [7]
The answer would be C. (12 x 5) - (s x 2) = 38.

This is because if there are 12 students with 5 pencils per student, we can say 12 x 5. Then, think of the phrase, two pencils lost per student. That would be 2s, or (s x 2). Since it’s lost, we would subtract that amount from 12 x 5.
3 0
3 years ago
Other questions:
  • Find the number of moles in 508 g of ethanol (C2H5OH).
    5·1 answer
  • Molly is wrapping up parts of sandwiches to sell at her sandwich cart. She cuts each sandwich into fourths and then wraps each f
    14·1 answer
  • NOT SURE NEED HELP PLEASE​
    6·2 answers
  • Keisha wants to read for 90 minutes so far she has read 30 percent over goal how much longer does she need to read
    14·2 answers
  • Evaluate 9!/6!3! <br><br><br> plz helppp:)))
    13·2 answers
  • When solving the equation x2 – 8x - 7 = ( by completing
    13·2 answers
  • A two digit number is such that, the sum of its digit is 13.When the digits are interchange, the original number is increased by
    11·1 answer
  • I'LL MARK BRAINLIEST !!!
    7·1 answer
  • Lucinda is driving away from Redding at 50 miles per hour. When she is 100 miles, Tom leaves Redding, driving at 60 miles per ho
    5·1 answer
  • What unit of measurement would you use to measure the length of your foot?
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!