Use a Venn diagram to find the greatest common factor of 12 and 30.<br> The GCF is?

The means and mean absolute deviations of the individual times of members of two relay swim teams are shown in the table below.

shepuryov [24]

See the attached picture for the solution:

7 0

3 years ago

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5% tax on $1.50 What us total cost

Alex_Xolod [135]

Answer:

$1.58

Step-by-step explanation:

1.50 multiplied by 1.05

answer is 1.575

rounded is 1.58

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6 0

3 years ago

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A pipe that is open at both ends has a fundamental frequency of 320 Hz when the speed of sound in air is 331 m/s. What is the le

Tems11 [23]

Answer:

51.72 cm.

Step-by-step explanation:

We have been given that a pipe that is open at both ends has a fundamental frequency of 320 Hz when the speed of sound in air is 331 m/s. We are asked to find the length of the pipe.

First of all, we will find the wavelength using following formula.

$\text{Wave speed}=\text{Frequency}\times \text{Wave length}$

$331\frac{\text{m}}{\text{s}}=320\text{ Hz}\times \text{Wave length}$

We know that Hz is equal to $\frac{1}{s}$ .

$331\frac{\text{m}}{\text{s}}=320\frac{1}{\text{s}}\times \text{Wave length}$

$331\text{ m}=320\times \text{Wave length}$

$\text{Wave length}=\frac{331}{320}\text{ m}$

$\text{Wave length}=1.034375\text{ m}$

Length of the pipe would be half of the wave-length.

$\text{Length of pipe}=\frac{1.034375}{2}\text{ m}=0.5171875\text{ m}$

Since the length of pipe is in meters, so we will convert it into cm.

1 m = 100 cm

$\text{0.5171875 m}=0.5171875\times 100\text{ cm}=51.71875\text{ cm}\approx 51.72\text{ cm}$

Therefore, the length of the pipe would be 51.72 cm.

6 0

3 years ago

Cheryl wants to find the number of hours seventh-graders do homework each week. There are 297 girls and boys in

expeople1 [14]

Answer: She can randomly survey 50 seventh-graders in the school.

Step-by-step explanation: To get the best result without wasting to much time means she cannot afford to survey every student. To receive the best results it should be unbiased so random is the way to go. Randomly surveying 50 girls in her school does not guarantee that those girls are all seventh graders so the best answer is She can randomly survey 50 seventh-graders in the school.

7 0

4 years ago

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What is the volume of this prism?

prisoha [69]

Answer:3672

Step-by-step explanation:6*6=36 6*17=102

36*102=3672

8 0

3 years ago

Use a Venn diagram to find the greatest common factor of 12 and 30. The GCF is?