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
49/10 as a mixed number
anastassius [24]
4 9/10 is your answer because you first have to divide the numerator by the denominator. this will give you 4, with a remainder of 9. The mix number can be created by using the 4 as the whole number, the 9 as the numerator and the 10 as a denominator. So, 49/10 = 4 9/10. Hope this works!
5 0
3 years ago
Read 2 more answers
which shows one way to determine the factors of 12x^3 - 2x^2 + 18x - 3 by grouping? A) 2x^2(6x - 1) + 3(6x - 1) B) 2x^2(6x - 1)
Eva8 [605]

Answer:

2x^2(6x - 1) + 3(6x - 1)

Step-by-step explanation:

Given

12x^3 - 2x^2 + 18x - 3

Required

Factorize

To start with; we need to group the expression into two

(12x^3 - 2x^2) + (18x - 3)

Factorize each grouped expression, using their common factor

2x^2(6x - 1) + 3(6x - 1)

From the list of given options;

Option A is correct

4 0
3 years ago
A sweater is marked down from $25 to $18. What is the percent of change
zhenek [66]

Answer:

28 percent off is the answer :)

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
P = 2L + 2W<br>How Do I Find W?
tatyana61 [14]
P = 2L + 2W ....subtract 2L from both sides
P - 2L = 2W ...divide both sides by 2
(P - 2L) / 2 = W .....can also be written  like (P/2) - L = W
3 0
3 years ago
Read 2 more answers
Misha bought 9 new baseball trading cards to add to her collection. The next day
swat32
She started with 81 baseball cards.
7 0
2 years ago
Other questions:
  • I need this answered in ONE minute
    15·1 answer
  • 927 is divisible by 3 and 9. (1 point)<br> true<br> false
    7·2 answers
  • Find the length of JK and the measure of M.
    5·1 answer
  • Pick Multiple Answers
    6·1 answer
  • I might be brain dead but can you help me and tell me how to solve this if I don’t have measurements?
    5·1 answer
  • 1 2 3 4 5 B 10 Which statement about rational numbers is true? All rational numbers are fractions. Rational numbers never have r
    11·2 answers
  • Answer the problem and show all work.
    12·1 answer
  • Jon caught four fish that weighed a total of 252 pounds. The kingfish weighed twice as much as the amberjack and the white marli
    6·1 answer
  • Select five numbers that have 7, 13, and 3 as prime factors.
    5·2 answers
  • If a 90°degree angle is bisected, the two angles created by the bisector will equal?
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!