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photoshop1234 [79]
2 years ago
11

A musician has just purchased a theremin — an instrument that can be played by moving your hands in the air. For every 30 centim

eters that she moves her hand away from the theremin’s antenna, the pitch of the theremin’s sound drops 500 hertz. By how many hertz does the pitch drop for every meter that she moves her hand away?
Mathematics
1 answer:
Kobotan [32]2 years ago
8 0

Answer:

1665 hertz

Step-by-step explanation:

30 x 3.33 = 1 (1 meter) so 500 x 3.33 = 1665 (1 meter of movement)

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F(x) = x − 8, g(x) = |x + 8|<br> Find <br> (f ∘ g)(x).
miskamm [114]

Answer:

<h2>(f  \circ g)(x) =  |x  +  8|  - 8</h2>

Step-by-step explanation:

f(x) = x - 8 \\  \\ g(x) =  |x + 8|

To find (f ∘ g)(x) , substitute g(x) into f(x). That is for every x in f (x) replace it with g (x)

That's

<h3>(f  \circ g)(x) =  |x  +  8|  - 8</h3>

Hope this helps you

5 0
3 years ago
Lilly’s car uses 5 gallons of gas to drive 230 miles. At what rate does her car use gas in gallons per mile?
andrezito [222]

Answer:

0.02 gallons per mile, and 46 miles per gallon.

Step-by-step explanation:


7 0
3 years ago
Mario's company makes unusually shaped imitation gemstones. One gemstone had 10 faces and 12 vertices. How many edges did the ge
igor_vitrenko [27]
I think 20 but not sure (:
5 0
3 years ago
Sara goes on a slingshot ride in an amusement park. she is strapped into a spherical ball that has a radius of centimeters. what
Kobotan [32]
I hope this helps you




volume of sphere =4/3.pi.r^3
6 0
3 years ago
Cousin Hector drove 1,851 miles to the reunion. He lives in Mexico and drove 747 miles through that country to the United States
Sonja [21]

Answer:

1104 miles

Step-by-step explanation:

Say he lives in a place in Mexico which is at a distance of <em>a </em>miles from the Mexico-America border point and the reunion is at <em>b </em>miles from the same border point, in America.

So the total distance travelled is ( a + b ) miles

( this is just sum of distance travelled in Mexico + that in America )

Given , a=747 and a+b=1851

that implies:

747 + b = 1851

So, b = 1104 miles.

Therefore he has travelled 1104 miles in America,

3 0
3 years ago
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