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
Shtirlitz [24]
3 years ago
6

A(r) is a function that gives the area of a circle with radius r. it can be written in equation form as A(r)=3.14r^2. what is th

e value of A(3)
A.18.84
B.28.26
C.88.74
D.12.14
Mathematics
1 answer:
Molodets [167]3 years ago
5 0
Simple...

you know A(r)=3.14r^{2}

It's just telling you what is the answer when r=3?-->>>

A(3)=3.14*3^{2}

A(3)=3.14*9

A(3)=28.26

Thus, your answer, B.
You might be interested in
eight workers can clear twenty acres of a field in three days. how many workers are needed to clear fifty acres in five days?
Morgarella [4.7K]

Answer:

12

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
What two numbers add up two 40 but multiply to get 100
DerKrebs [107]

The two numbers are illustrations of system of equations

The two numbers are 2.7 and 37.3

<h3>How to determine the two numbers?</h3>

Let the numbers be x and y.

So, we have the following equations

x + y = 40

xy = 100

To determine the value of the variables, we simply plot the graph of both equations

From the graph, we have the following result

(x,y) = (2.7, 37.3)

Hence, the two numbers are 2.7 and 37.3

Read more about system of equations at:

brainly.com/question/14323743

3 0
3 years ago
Graph the equations to find the solution(s) to the system.
Scilla [17]

Check the picture below.

recall that a solution is where both graphs meet.

6 0
4 years ago
How long drive 450 miles, driving 60 mph?
Rama09 [41]

dive the number of miles by the speed

 so 450/60 = 7.5 hours

8 0
4 years ago
90% of 250 please help ​
Anna007 [38]
I agree the answer is 225 and you can also use the calculator too.
6 0
3 years ago
Other questions:
  • Kala has been offered two 40 hour a week jobs. One job pays an hourly wage of $25 and 10% of all sales. The other job pays $20 a
    7·1 answer
  • A rectangular pyramid measures three feet by four feet at the base, and has a height of seven feet. Find its volume. A. 21 ft3 B
    5·1 answer
  • I’m having a hard time understanding substitution. Please help!
    13·1 answer
  • A $40.00 shirt has a sale tax rate of 8%
    7·1 answer
  • Does the graph of the equation y = 7 - 2x increase or decrease? A) decreases because the x values decrease from left to right B)
    12·2 answers
  • How many 1/2 cup servings are there in seventh 8th cup of peanut butter
    5·1 answer
  • The data set shows the ages of the players of the soccer team. What is the most common age of the members of the team? Explain h
    14·2 answers
  • Trench Warfare<br> Define in own words
    11·2 answers
  • The area of two similar triangles are 50dm^2 and 32dm^2. The sum of their perimeters is 117dm. What us the perimeters of each of
    7·1 answer
  • How do you write 652% as a fraction, mixed number, or whole number?
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!