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GrogVix [38]
3 years ago
5

The frequency of D3 is 146.83 Hz. What is the frequency of D5, which is two octaves above D3?

Mathematics
1 answer:
Vaselesa [24]3 years ago
5 0

Answer: D

Frequency = 587.32 Hz

Step-by-step explanation:

One octave above has a frequency of 2 × 146.83 Hz = 293.66Hz (D4). Two octaves above has afrequency of 2 × 293.66 Hz = 587.32 Hz (D5)

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By which rule are these triangles congruent?<br><br> AAS<br> ASA<br> SAS<br> SSS
belka [17]

Answer:

Step-by-step explanation:

ASA congruent

the common side is between the two angles .

8 0
4 years ago
Point F is a centroid of the triangle BDE. If AB = 24 cm, what is BE?
Alex17521 [72]

Answer: i know this is way late, but it’s 48

Step-by-step explanation:

Since point A is the separation of BE, both sides of the separation are equivalent, the are congruent. Since AB=24, you add 24+24 to get 48.

(I also just answered this question on homework and got it right, this is just how I did it.)

4 0
3 years ago
A spherical party balloon is being inflated with helium pumped in at a rate of 10 cubic feet per minute. How fast is the radius
Anastaziya [24]

Answer:

The radius is growing at a rate of   \frac{dr}{dt}  = \frac{10}{4 \pi} = 0.795 ft per minute.

Step-by-step explanation:

From the information given we know that

\frac{dV}{dt} = 10

And we know as well that .

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Since everything is changing with the time we can compute the implicit  derivative and we would get that

\frac{dV}{dt} = 10 = 4\pi r^2 \frac{dr}{dt}

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And when we solve for  \frac{dr}{dt}  = \frac{10}{4 \pi} = 0.795

3 0
3 years ago
What is the value of y if (4y + 8) - (7t - 12) = 11?
Sunny_sXe [5.5K]
If the '7t' is supposed to be '7y', then the answer is below
(4y+8)-(7y-12)=11
distribute the negative into the second parenthesis
4y+8-7y+12=11
combine like terms
-3y+20=11
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-3y=-9
divide by -3 on both sides
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if it is supposed to be '7t', I'm not sure if there's enough information
4 0
3 years ago
What is more important, π or e? Why?
Svetradugi [14.3K]
Well, this is a broad question but I would say pie. Pie is used very early on in secondary school and therefore a lot of people already know about it and how to use it. But for example if your a banker E would be more important as banks use e to calculate interest.

Hope this helps, have a great day.
3 0
3 years ago
Read 2 more answers
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