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
ycow [4]
3 years ago
12

Find the area of a circle with radius, r = 9cm. Give your answer in terms of π .

Mathematics
2 answers:
const2013 [10]3 years ago
7 0

Answer:

81 π

Step-by-step explanation:

formula is radius squared times pi or π so the answer would be 9x9=81 and you said to leave in terms of π so the answer is 81 π.

Colt1911 [192]3 years ago
3 0

Answer:

81\pi

Step-by-step explanation:

Area = \pi * r^{2} \\\pi *9^{2} =81\pi

You might be interested in
2. Help ASAP!!!!!!!!!!!!!!!!
ch4aika [34]

ANSWER

2 \times 2

EXPLANATION

The dimensions of a matrix is of the form:

Row \times  Column

The dimensions of the first matrix is

2 \times 3

The dimensions of the second matrix is

3 \times 2

Since the inner products are the same,the outer products give the dimensions of the product of the two matrices.

(2 \times 3)(3 \times 2) = 2 \times 2

Therefore the dimensions of the product is a 2×2 matrix.

8 0
3 years ago
Read 2 more answers
The value of y varies directly with x, and y=10 when x=4. Find x when y=14.
damaskus [11]
y=10\ \ \ and\ \ \ x=4\\\\
y=14\ \ \ and\ \ \ x=?\\\\
Making\ ratio:\\
10-4\\14-x\\\\
Cross\ multiplication:\\
10x=4*14\\
10x=56\ \ \ |Divide\ by\ 10\\x=5,6\\\\solution\ is\ x=5,6.
5 0
3 years ago
Select all ratios equivalent to 5:3.<br> 13:9<br> 9:15<br> 20:12
torisob [31]

Answer:

20:12

brainlest if it helped

Step-by-step explanation:

7 0
2 years ago
Read 2 more answers
125% of what number is 25
Mazyrski [523]
We can create a equation to find out.

since we are finding a number where when multiplied by 1.25(this is the decimal form of the percentage) gives us 25, we know that the number we are finding is less than 25. here is the equation.

1.25(x)=25

divide both sides by 1.25 to get "x" alone.

x= 20
5 0
3 years ago
Read 2 more answers
How much does 2.5 L of oil cost if 2,000 mL costs $5.00?<br> Show work
kkurt [141]

Answer:

$6.25

Step-by-step explanation:

2000ml = 2 litres

2.5L - 2L = 500ml

So now we know that without the 500ml, it is 5 dollars.

Find out how much 500 ml cost.

2000ml = 5.00

1ml = 5.00 ÷ 2000 = 0.0025

500ml = 0.0025 x 500 = 1.25

2L + 500 ml = 2.5L (which 2.5L costs 6.25)

5 0
3 years ago
Other questions:
  • The first question<br><br> Is it A B C, or D?<br><br> Explain why
    14·1 answer
  • Carpeting costs $7.99 a yard. If Jan buys 12.4, how much will it cost?
    6·2 answers
  • What is the center of a circle represented by the equation (x−5)2+(y+6)2=42?
    14·2 answers
  • When a number is increased by 9.5%, the result is 58. What is the original number to the nearest tenth?
    8·2 answers
  • Whats 10 divided by 5+10-9x11
    9·2 answers
  • ILL MARK U BRILLIANT PLEASE I NEED HELP
    5·1 answer
  • What is the area of this figure?<br><br> Enter your answer as a decimal in the box.<br><br><br> cm²
    10·1 answer
  • G(n) = n2+ 2; Find g(3)
    12·2 answers
  • Which property is shown in this example?
    14·1 answer
  • Joe has a 300 foot fence around his rectangular yard. The length is 10 feet more than the width. Which equation can you use to d
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!