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4 years ago

As the distance of a sound wave from its source quadruples, how is the intensity changed?

Mathematics

1 answer:

natulia [17]4 years ago

5 0

Answer:

I think its b

Step-by-step explanation:

because 4×4 is 16

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This question is worth 50 points, make sure to provide ALL calculations without using a calculator, though.

Fed [463]

Answer:

Step-by-step explanation:

Use the formula for the volume of a cone:

V = (1/3)(area of base / round opening)(height of cone)

In this case we're interested in the following:

(1/3)(area of base / round opening)(height of cone) ≤ 535 cm³

First, mult. both sides by 3 to elim. the fraction 1/3:

(area of base)(height) ≤ 1605 cm³

Since the height is 8 cm, we now have:

(area of base) / (8 cm) = 1605 cm³, or

(area of base) = (1605 cm³) · (8 cm) = 200.625 cm²

The formula for the area of a circle is A = 3.14·r², where r is the radius.

If the area of the base is 200.625 cm², as found above, this equals 3.14r², and so

r² = (200.625 cm²) / (3.14) = 63.89 cm²

Then the radius must be +√63.89 cm, or 8 cm

and the diameter must be 2r = 2(8 cm) = 16 cm. This would be the largest width of the container.

7 0

3 years ago

Exponential decay occurs if the base of an exponential function is a negative integer.

oee [108]

False it occurs if the exponent is negative.

5 0

3 years ago

Read 2 more answers

When the y coordinate is positive, which way do you move on the coordinate plane?

Aloiza [94]

Answer:

Step-by-step explanation:

You would move it up the y-axis

5 0

3 years ago

PLEASE HELP THIS IS DUE IN AN HOUR

Fantom [35]

Answer:

1) ECB is the first blank.

2) SAS is the second blank

7 0

3 years ago

Find the value of N that makes the number sentence true. 3 4/5 - N = 1 1/10

lisabon 2012 [21]

Answer:

The value of N is 2 7/10.

Step-by-step explanation:

3 4/5 - N = 1 1/10
=> 19/5 - N = 11/10
=> -N = 11/10 - 19/5
=> -N = 11/10 - 38/10
=> -N = -27/10
=> N = 27/10
=> N = 2 7/10

Hence, the value of N is 2 7/10.

Hoped this helped.

$BrainiacUser1357$

7 0

2 years ago