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
Zinaida [17]
3 years ago
5

A student solved for the radius of a circle with a circumference of 12π

Mathematics
1 answer:
padilas [110]3 years ago
3 0

Answer:

Step 4 is incorrect  he did not divide correctly from step3 to step 4

Step-by-step explanation:

The circumference of a circle is

C = 2 * pi *r

We know the circumference is 12 pi

12pi = 2 pi *r

Divide each side by 2 pi

12 pi/2pi = 2pi r/ 2pi

6 = r

From step 3 The student did not cancel the pi in the top and the bottom on the right hand side to isolate r

In step 4 he got 6 =pi r  instead of pi

You might be interested in
Convert the mixed number to an improper fraction. enter your answer below using the slash mark ( / ) as the fraction bar
eduard
The Answer Fam Is 99/10
5 0
3 years ago
Who is the Father Of Math​
Assoli18 [71]

Answer: <u>Archimedes</u>

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
a file that is 278 megabytes is being downloaded. If downloaded is 14.1% complete, how many megabytes been downloaded? To round
Gekata [30.6K]
14.1% of 278 is 39.2. So 39.2 megabytes have been downloaded.
4 0
3 years ago
Read 2 more answers
Grace paid $1.70 for 5 ounces of candy. How much did she pay for 24 ounces?
katen-ka-za [31]

Answer:

Step-by-step explanation:


7 0
3 years ago
Read 2 more answers
4. Is the point (3,-4) a solution to the given system? Justify your answer.
Zigmanuir [339]

Answer: No, it is not a solution

==========================================================

Explanation:

The point (3,-4) means that x = 3 and y = -4 pair up together

Let's plug these x,y values into each equation

Starting with the first equation, we get,

y = 4x-16

-4 = 4(3)-16 ... x replaced with 3; y replaced with -4

-4 = 12-16

-4 = -4 .... this is a true statement

Repeat for the second equation

y = 2x-6

-4 = 2(3)-6

-4 = 6-6

-4 = 0 ... this is false

Since we get a false statement, this means (3,-4) is not on the line y = 2x-6, which means that overall (3,-4) is not a solution to the system of equations. The point (3,-4) must make both equations true for it to be a solution.

5 0
3 years ago
Other questions:
  • What is 5 - x = 3(x + 11)​
    6·2 answers
  • Which of the following is the correct factored form of the given equation? 4x 2 - 11x + 6 = 0
    9·1 answer
  • Joshua spins a spinner twice. The spinner consists of 3 equally spaced colors, Red, Blue, and Yellow. What is the probability th
    8·1 answer
  • Write each expression in terms of sines and/or cosines and then simplify.
    8·1 answer
  • My number is between 1 and 100. It is composite and one of its factors is 8. The number in the tens place is a prime number. The
    10·2 answers
  • The variable t represents the temperature at 6 p.m. Which equation would best model the word problem below? The temperature at t
    10·1 answer
  • An advertising campaign is canceled before launch with probability 0.10, in which case the marketing company is fired with proba
    14·1 answer
  • Find the lengths of the missing sides
    12·1 answer
  • Plsss help I’ll give u brainlest and 10 points
    12·1 answer
  • Kyle can walk 2 miles in a half of an hour. How far will he walk in 2 hours?
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!