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
ad-work [718]
3 years ago
12

What is the area of a circle with a radius of 9 cm? (Express your answer using π.)

Mathematics
2 answers:
Dafna1 [17]3 years ago
7 0
It is A because the area of a circle id <span>π</span>r^2 an 9*9=81 81
jekas [21]3 years ago
4 0
Area of a circle= <span>π * r^2
<span>π*9^2
</span>π*81= 81<span>π
</span>Your answer is A.</span>
You might be interested in
The length of a rectangle is three times longer than its width. The perimeter of the rectangle is 16 feet. If x represents the w
scoray [572]
<span>Given that x represents the width of the rectangle and that the length of the rectangle is three times longer than the width. Then the length is 3x. The perimeter of a rectangle is given by 2(length + width) = 2(3x + x) = 2(4x) = 8x. The perimeter of the rectangle is 16 feet. Therefore, the required equation is 8x = 16. </span>
7 0
3 years ago
Complete the statement. Round to the nearest hundredth if necessary.<br><br> 6 lb = *blank* oz
skad [1K]

Answer:

3 oz

Step-by-step explanation:

You have to divide 6 by 2 and you'll get the answer.

3 0
2 years ago
The following table shows the number of hours some students of a of a class listen to music each day.
seraphim [82]

Answer:

Histogram B best represents the data.

Step-by-step explanation:

student:     Hours:

a                0.6

b                0.5

c                2.5

d               2.5

e               1.5

f                2.5

g               0.5

h               1.5

 I               1.5

 j               2.5

 k              2.5

 l               2.5

m              1.5

n               1.5

o               1.5

Since clearly from the table we could see that none of the student spend  more than 3 hours in listening music each day.

Hence, the graph in option A and option D are incorrect.

Now we arrange our data in the interval of 1 unit to get:

Interval                   Number of students

0-1                                       3

1-2                                       6

2-3                                      6

Hence, the histogram that represents this data is:

Histogram B

5 0
3 years ago
Read 2 more answers
There are 40 students playing dodge ball in a high school gym that is 100 feet long by 60 feet wide. There are 12,000 balls avai
shutvik [7]

Answer:

I've never done this before, but if it is balls per square foot, then i can figure it out. It is 2 balls per square foot

Step-by-step explanation:

If the gym is 100 ft by 60 ft, it will be 6,000 square ft. Since there are 12,000 balls, you divide it by 6,000 (12,000/6,000), which is 2, so it would be 2 balls per square foot

5 0
3 years ago
How many trolley cars are needed to hold all the passengers? Write as a mixed number
Oksanka [162]

Answer:

46\frac{1}{8}

Step-by-step explanation:

<u><em>Formulate</em></u>

<u><em /></u>1845\div40

<u><em>Calculate</em></u>

<u><em /></u>\frac{1845}{40}

<u><em>Cross out the common factor</em></u>

<u><em /></u>\frac{369}{8}

<u><em>Write </em></u>\frac{369}{8} <u><em>as a mixed fraction</em></u>

<u><em /></u>46\frac{1}{8}

<em>I hope this helps you</em>

<em>:)</em>

7 0
2 years ago
Other questions:
  • If the 11th term of a geometric sequence is 32 times larger than the 6th term, then
    14·1 answer
  • The enrollment at a local college increased 4% over last year’s enrollment of 2100. Find the current enrollment.
    15·2 answers
  • 3 equivalents for 18:4
    6·1 answer
  • Which rational number equals 0.1 repeating?
    8·2 answers
  • Please help I have 3 questions.
    10·1 answer
  • Please help me on number 10 and 11
    5·1 answer
  • HELP PLS <br><br>what is the best estimate for √333​<br>A. 111<br>B. 19<br>C. 18<br>D. 18.2
    9·1 answer
  • Which expression can be used to convert 22 Australian dollars to US dollars
    5·1 answer
  • Is the ratio 4 to 7 the same as 7 to 4 ?
    6·2 answers
  • Which unit rate is the lowest price per ounce?
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!