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aleksandr82 [10.1K]
3 years ago
11

Please help, if you do not know do not answer please!

Mathematics
2 answers:
Paul [167]3 years ago
6 0

Answer:

1,3 are functions

2,4 are not

Ad libitum [116K]3 years ago
4 0

Answer:

Relation 1 & 3 are function

Relation 2 & 4 are not function.

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The middle note C has a frequency of 262 hertz and can be modeled using a sine function with an amplitude of 1.5, where x is tim
MrRissso [65]

Answer:  f(x) = 1.5*sin(x*2*pi/0.0038s)

Step-by-step explanation:

A sine function is:

f(x) = A*sin(c*x + f)

Where A is the amplitude, we know that it is 1.5

c is a constant that depends on the frequency.

f is a phase.

As there is no mention of a phase, we can assume f = 0.

Then our function is:

f(x) = 1.5*sin(c*x)

now let's find the value of c.

We know that the frequency is 262hz.

Then the period can be calculated with the equation:

T = 1/f.

T = 1/262 Hz = 0.0038 seconds.

Now, the period of a sin function is 2*pi.

whit pi = 3.14159265358979.....

Then we have that:

sin(0) = sin(c*0.0038s)

sin(0) = sin(2*pi)

then:

c*0.0038s = 2*pi

c = 2*pi/0.0038s

Then the function is:

f(x) = 1.5*sin(x* 2*pi/0.0038s)

3 0
3 years ago
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In 2010 there were 8.9 million diagnosed with diabetes. That's a 396% increase since 1973. How many were there with diabetes in
Cerrena [4.2K]

Answer:there would be 2247474.75

Step-by-step explanation:

8 900 000/3.96

4 0
3 years ago
8214 divided by 173 with a remainder in a simple form
wolverine [178]
47 R83  
^^^^^^^^^^^^^^^^^^^^                                             


4 0
4 years ago
Please answer quickly 14 points for it :)
Fantom [35]

Answer:

0.65, 2.05, 2.56, 5.06, 5.62

6 0
3 years ago
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Which is the completely factored form of 4X cubed +10 X squared minus 6X
IgorLugansk [536]

Answer:

2x(2x - 1)(x + 3)

Step-by-step explanation:

4x^3 + 10x^2 - 6x =

Factor out the common factor 2x.

= 2x(2x^2 + 5x - 3)

Factor the trinominal.

= 2x(2x - 1)(x + 3)

5 0
3 years ago
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