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Anuta_ua [19.1K]
3 years ago
10

A wheel with a radius of 7 inches is rotating at 4 revolutions per second. What is the linear speed v, in feet per second

Mathematics
1 answer:
Ymorist [56]3 years ago
5 0

Answer:

Linear speed= V= 175.84 m/s

Step-by-step explanation:

A wheel with a radius of 7 inches is rotating at 4 revolutions per second.

Linear speed v = rw

r= radius

r= 7 inches

w= angular speed

W= 4rev/s

But one rev= 2π

W= 4*(2π)/s

W= 8π/s

V= rw

V=7*8*3.14

V= 175.84 m/s

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Theodore says 7×600 is greater than 6×7000. cristal says 7×600 is less than 6×7,000.​
noname [10]

Answer:

Cristal is correct because 7 x 600 is less than 6 x 7,000.

Step-by-step explanation:

Because they are just switching the numbers 7 and 6 and 7 x 6 = 6 x 7, you have to look at the number of zeros. As you can see, 7,000 has 1 more zero than 600, so Cristal is correct. Just like I said 7 x 6 and 6 x 7 is interchangeable, so is 7 x 600 and 6 x 700, they both equal 4,200. However, 6 x 7,000 is 42,000.

Hope this helps! If you have any additional questions please don't hesitate to ask me or your teacher to be sure you master the subject. Stay safe and please mark brainliest! :)

7 0
3 years ago
Read 2 more answers
Express loga 6 + loga 70 as a single logarithm
ICE Princess25 [194]

Answer:

logₐ(420)

Step-by-step explanation:

8 0
3 years ago
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(3x2 + 9x + 6) - (8x2 + 3x - 10) + (2x + 4)(3x - 7)
nika2105 [10]

Answer:

Let's simplify step-by-step.

3x2+9x+6−(8x2+3x−10)+(2x+4)(3x−7)

Distribute:

=3x2+9x+6+−8x2+−3x+10+(2x)(3x)+(2x)(−7)+(4)(3x)+(4)(−7)

=3x2+9x+6+−8x2+−3x+10+6x2+−14x+12x+−28

Combine Like Terms:

=3x2+9x+6+−8x2+−3x+10+6x2+−14x+12x+−28

=(3x2+−8x2+6x2)+(9x+−3x+−14x+12x)+(6+10+−28)

=x2+4x+−12

Answer:

=x2+4x−12

3 0
3 years ago
Carly buy a new house for 125,000 the value of the house appreciate approximately 3.5% each year what will be the value of a hou
m_a_m_a [10]
Y=125,000 (1+.035)^10
Y=125,000 (1.035)^10
Y=125,000 (1.410598716) or 125,000 (1.41)
Y= $176324.85 or $176250
7 0
3 years ago
You only need to answer the Multiply part
docker41 [41]

Answer:

8

Step-by-step explanation:

Each time Ryan flips the coin, he has 2 possibilities: heads (H) or tails (T).

Since Ryan flips the coin 3 times, we just multiply 2 by itself thrice:

2 * 2 * 2 = 8

Thus, there are 8 possible combinations.

Hope this helps!

4 0
3 years ago
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