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
kotegsom [21]
2 years ago
8

A circular table top has a diameter of 90cm. Work out the area of the table top.

Mathematics
2 answers:
BartSMP [9]2 years ago
8 0
Area of a circle is pi*r^2

r is 90/2 = 45

pi x 45 x 45 = 6361.73
Reptile [31]2 years ago
4 0

Answer:

Find the area of table top( circle)

A=πd²/4

A = 3.1415× (90cm)²/4

A= 3.1415× 8100cm²/4

A= 3.1415×2025

A=6361.5375cm²

The area of the table top is 6361.5375cm².

You might be interested in
If the diameter of a circle is 9 cm, then its circumference is 56.52 cm.<br> True or False
Georgia [21]

Answer: true

Step-by-step explanation: first you divide its circumference by pi, which you then get 17.990. Round it to 18. Then use the diameter (18) and divide it by 2. You get 9.

6 0
3 years ago
When a principal amount, P, is invested at an annual interest rate, r, and compounded n times per
GaryK [48]

Answer:

n =2

Step-by-step explanation:

Compound interest:

The compound interest formula is given by:

A(t) = P(1 + \frac{r}{n})^{nt}

Where A(t) is the amount of money after t years, P is the principal(the initial sum of money), r is the interest rate(as a decimal value), n is the number of times that interest is compounded per year and t is the time in years for which the money is invested or borrowed.

In this question:

The money is compounded every 6 months.

n is the number of times that interest is compounded per year.

Each 6 months means 12/6 = twice a year. So n =2..

8 0
3 years ago
If X=3, What is the area of a triangle with sides, 6x ,7x, and 21x? A.117 in² B.378 in² C.189 in² D. 58.5 in²
AURORKA [14]

Answer:

The given sides does not form a triangle

Step-by-step explanation:

The given sides does not form a triangle

We know the triangle property which states that the sum of any two sides of the triangle should be greater than the third side.

Here given th esides of the triangle are 6x,7x,21x

6x+7x=13x < 21x

for any value of x the above equation does not satisfy.

8 0
3 years ago
I need help please help
sergij07 [2.7K]

Answer:

21u-16v+18w

Step-by-step explanation:

(7u-4v+4w) 14u-12v+14w

21u-16v+18w

3 0
3 years ago
Read 2 more answers
How would I find the area given these 4 points? Is there a formula that I just don't know​
Dmitrij [34]

Answer: No

Step-by-step explanation:

I can’t think of one but if you have a pegboard there is a formula called Pick’s Formula

8 0
3 years ago
Other questions:
  • (3×7)+5=26 write a situation for this equation and draw a picture that goes with it​
    5·1 answer
  • Write the number in 2 equivalent forms as a​ fraction, decimal, or percent.
    9·1 answer
  • B<br> 34<br> 16<br> A<br> C<br> 30<br> cos A-
    14·1 answer
  • Please help i will give brainliest and thanks !!!!
    6·1 answer
  • Evelyn found an old recipe for almond cookies. The recipe requires 1 pints of almonds. Evelyn does not have enough almonds, but
    5·1 answer
  • Determine if the sequence below is arithmetic or geometric and determine the common difference / ratio in simplest form. 3 , 7 ,
    5·1 answer
  • Samantha wants to treat her friends to a movie. Tickets cost $6 each and popcorn and drinks will cost $30. She can spend no more
    11·2 answers
  • Ms. Donaldson earns $20.00 per hour for the first 40 hours she works in a week. She earns 1 and 1/2 times that amount per hour f
    13·1 answer
  • Write an equation of the line that passes through (18,2) and is parallel to the line 3y - x= - 12 .
    15·1 answer
  • Insert the missing number<br> 37 16 35
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!