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
Zielflug [23.3K]
2 years ago
9

The area of a circle is 30.8m2. Find the length of the diameter rounded to 1 DP.

Mathematics
1 answer:
andre [41]2 years ago
8 0
Area of a circle = pi • r^2

We need to isolate for r.

A/pi = r^2

r = sqrt(A/pi)

r = sqrt(30.8/pi)

r = 3.1311251164

Diameter = 2r

Diameter = 6.26225023

Diameter = 6.3 m
You might be interested in
Madison can lift 200 kilograms with ease. how much is this in pounds
Firlakuza [10]

Answer:440.925

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
Larry the librarian and Courtney the lawyer are having a debate. Larry contends that the library is bigger than the courthouse i
professor190 [17]

Answer:

Library's Area= 5200

Courthouse' Area= 5027

<u>Larry</u> is correct.

Step-by-step explanation:

5 0
3 years ago
A sales person earns a commission based on the number and type of vehicle sold. A person selling 6 cars and 3 trucks earns 4,800
AURORKA [14]
Assign variables to you unknowns.

c = $ cars
t = $ trucks

6c + 3t = 4800
8c + t = 4600

use substitution or elimination to solve the system of equations.

using elimination.. multiply second equation by -3 and add to the other to combine equations into one.

6c + 3t = 4800
-3(8c + t = 4600)
---------------------------
-18c + 0 = -9000
c = 9000/18
c = 500 $

use this in one of the equations to find the cost of a truck.

8(500) + t = 4600
4000 + t = 4600
t = 4600 - 4000
t = 600 $

question asks
2(500) + 3(600) =
1000 + 1800 = 2800 $
3 0
2 years ago
The function f(x) is given by the set of ordered pairs. {(1,0), (–10,2), (0,6), (3,17), (–2,–1)} Which equation is true? f of ne
Rudik [331]

Answer:

f(0)=6

Step-by-step explanation:

When representing function's values by set of ordered pairs, the first one correspond to the x value and the second to the image or "y" value.

When you read f(0) means "when x is 0" then the 6 is the value of the function or the image.

7 0
2 years ago
Read 2 more answers
If it is possible to label each element of an infinite set S with a finite string of keyboard characters, from a finite list cha
adelina 88 [10]

Answer:

D. We can label the rational numbers with strings from the set (1, 2, 3, 4, 5, 6, 7, 8, 9, / -) by writing down the string that represents that rational number in its simplest form. As the labels are unique, it follows that the set of rational numbers is countable.

Step-by-step explanation:

The label numbers are rational if they are integers. The whole number subset is rational which is written by the string. The sets of numbers are represented in its simplest forms. The rational numbers then forms numbers sets which are countable.

6 0
2 years ago
Other questions:
  • Three consecutive even integers are such that the sum of the smallest and three times the second is 38 more than twice the third
    10·2 answers
  • You have 23 coins, including nickels, dimes, and quarters. if you have two more dimes than quarters, and the total value of the
    8·2 answers
  • Write an equation for the following word problem: "the difference of twice a number and 3 is -21"
    13·1 answer
  • 8. Example 1 - Calculating Hourly Wages
    9·1 answer
  • What is (x+3)(x+8)=0
    15·2 answers
  • G(x)= 3x - 1<br> Find g(2)
    13·1 answer
  • Nick decides to play "Spin to Win" at a fundraiser event. He has a 25% chance of winning on any individual spin.
    14·2 answers
  • Please explain how you got the answer. Don’t just tell me the answer
    6·1 answer
  • 1-37.
    10·1 answer
  • The candidate for Congress receives 5824 votes out of the 8000 votes cast to the nearest whole percentage what percentage of vot
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!