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3 years ago

Please help solve this.

Mathematics

1 answer:

stira [4]3 years ago

8 0

This first one is - M

second one is - GD

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Step-by-step explanation:

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2 years ago

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3 years ago

A sinusoidal function whose frequency is 1/6pi

Lyrx [107]

Answer:

B. $f(x)=9\sin (\frac{x}{3})+3$

Step-by-step explanation:

We are given that,

The frequency of the function is $\frac{1}{6\pi}$

The maximum and minimum value is 12 and -6.

Also, the y-intercept is 3.

From the options, we have,

Options C and D have minimum value 6. So, they does not represent the given function.

We know, 'If a function has a period P, then the function $a+f(bx+c)$ will have the period $\frac{P}{|b|}$ .

Also, 'The frequency is the reciprocal of the period'.

So, function $a+f(bx+c)$ will have the frequency $\frac{|b|}{P}$ .

From the options, we see,

Option B have the frequency, $\frac{\frac{1}{3}}{2\pi}$ i.e. $\frac{1}{6\pi}$ .

Option A have the frequency, $\frac{6\pi}{2\pi}$ i.e. 3

Thus, option A is not correct.

Hence, option B is the required sinusoidal function.

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4 years ago

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IM AM SO CONFUSED

Semenov [28]

Hello,

Answer (1/2,-1/4)

$8x^2-2x-1=0\\\\8x^2-4x+2x-1=0\\\\4x(2x-1)+2x-1=0\\\\(2x-1)(4x+1)=0\\\\sol=\{\dfrac{1}{2} ,-\dfrac{1}{4} \}\\$

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3 years ago