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Sergio [31]
3 years ago
7

A student solved for the radius of a circle with a circumference of 12π Step 1: C = 2 pi r. Step 2: 12 pi = 2 pi r. Step 3: Star

tFraction 12 pi over 2 pi EndFraction = StartFraction 2 pi r over 2 pi EndFraction. Step 4: 6 = pi r. Step 5: StartFraction 6 over pi EndFraction = StartFraction pi r over pi EndFraction. Step 6: Solving for r, the length of the radius is StartFraction 6 over pi EndFraction centimeters. In which step did the student make an error? Step . Solving for r, the length of the radius should be cm.
Mathematics
2 answers:
oee [108]3 years ago
5 0

Answer:

4

6

Step-by-step explanation:

just had the question peeps (。・ω・。)

Greeley [361]3 years ago
3 0

Answer:

The student made a mistake in step 4

The length of the radius should be 6 cm

Step-by-step explanation:

Let us write each step to find the radius of a circle from its circumference

Step 1:

∵ C = 2πr

∵ C = 12π

Step 2:

Equate 12π by 2πr

∴ 12π = 2πr

Step 3:

Divide both sides by 2π

∵ \frac{12\pi }{2\pi }=\frac{2\pi r}{2\pi }

Step 4:

∴ 6 = r

∴ The radius of the circle is 6 cm

The student mad a mistake he divided the left hand side by 2π and the right hand side by 2 only he left π with r

Step 4:

∴ 6 = πr

So he divided both sides again by π

Step 5:

∵ \frac{6}{\pi }=\frac{\pi r}{\pi }

Step 7:

∴ \frac{6}{\pi } = r

The student made a mistake in step 4

The length of the radius should be 6 cm

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Answer:

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Step-by-step explanation:

There are 15 girls and 9 boys

15+9 = 24 total students

boys/total = 9/24

Divide the top and bottom by 3

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3 0
3 years ago
35 x 2/7 <br> 14, 5, 7, 10,
dlinn [17]

Answer:

10

Step-by-step explanation:

35 * 2/7

Rewriting

35/7 *2

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10

4 0
3 years ago
What is the simplified form of the expression k^3(K^7/5)^-5
Vladimir79 [104]
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3 0
3 years ago
(05.06)Keisha ran to swim practice but needed to stop by her friend Natasha’s house on the way. She stayed at Natasha’s house fo
Ugo [173]

The graph third represents the provided situation first line increases and then constant then again increases and becomes constant.

<h3>What is a line graph?</h3>

A line graph is a graph made up of segments of straight lines that connect the depicted data points.

We have:

Keisha ran to swim practice but needed to stop by her friend Natasha’s house on the way. She stayed at Natasha’s house for 15 minutes, and together they ran the rest of the way to practice, where they stayed for 1 hour.

Based on the information given we can say graph third represents the situation.

First Keisha ran to swim practice so the line first increases and then she  but needed to stop by her friend Natasha’s house on the way. She stayed at Natasha’s house for 15 minutes which means the line should be constant.

Again they both ran so line increases.

Then they both stayed for 1 hour, so the line should be constant.

Thus, the graph third represents the provided situation first line increases and then constant then again increases and becomes constant.

Learn more about the line chart here:

brainly.com/question/23680294

#SPJ1

7 0
2 years ago
How do you solve 35×8425
Andru [333]
It's is 500800 that's the answee
6 0
3 years ago
Read 2 more answers
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