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svlad2 [7]
3 years ago
11

(i) For the equation y= 4-x,find the value of y when

Mathematics
2 answers:
densk [106]3 years ago
7 0
A)6 b)4 c)2 d)0. You just have to replace X with given number.
prohojiy [21]3 years ago
3 0

Answer:

Soln:

Firstly, putting -2 as the value of x

y=4-x

or, y=4-(-2)

or, y=4+2

or,y=6

:. y=6

Now, putting 0 as the value of x

y=4-x

or, y=4-0

or, y=4

:. y=4

Again, putting 2 as the value of x

y=4-x

or, y=4-2

or, y=2

:. y=2

Lastly, putting 4 as the value of x

y=4-x

or, y=4-4

or, y=0

:. y=0

Therefore,(a)x=-2 , y=6

(b)x=0 , y=4

(c)x=2 , y=2

(d)x=4. , y=0

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Step-by-step explanation:

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cancel common factor,

\frac{16}{12}=\frac{ 4}{3}

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Question 5
Harrizon [31]

Answer:

h ( t ) = 4 sin ( 100\pi*t )

Step-by-step explanation:

Solution:-

The position of any particle or object lying on a circular surface which is rotating with an angular speed of ( w ).

The motion of the particle/object can be expressed as sinusoidal or harmonic motion. We can express the motion of the particle in the cartesian coordinate system using a sinusoidal waveform.

The position of the particle/object from the central axis at time t = 0 can be given in the form:

                    h ( t ) = A*sin ( w*t )

Where,       A: The amplitude of the particle in motion ( in )

                  w: The angular frequency of rotation ( rad/s )

The amplitude ( A ) of the sinusoidal waveform is determined from the maximum displacement of the particle/object from the horizontal axis which defined by the radius of the fidget spinner where the particle is located. Hence, A = 4 in

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We will first convert 3000 rpm into rad/s as follows:

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The sinusoidal function that models h ( t ) can be written as:

                     h ( t ) = 4 sin ( 100\pi*t )

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