All categories

2 years ago

What is the frequency of the function f(x)?

Mathematics

1 answer:

Alex73 [517]2 years ago

8 0

Answer:

frequency = 1/(2π)

Step-by-step explanation:

The frequency of the function is found by comparing the argument of the cosine function to (2πfx), where f is the freuqency.

2πfx = x . . . . the argument of the cosine is x in f(x)=2cos(x) -4

2πf = 1 . . . . . . divide by x

f = 1/(2π) . . . . . the frequency of the function f(x)

You might be interested in

9-5(4-2)<br> --------------<br> 3+5

nirvana33 [79]

Answer:

-1/8

Step-by-step explanation:

9-5(4-2)

--------------

3+5

First do the parentheses

9-5(2)

--------------

3+5

Then calculate the top and bottom of the fraction

We need to multiply and divide first

9-10

--------------

3+5

-1

--------------

5 0

3 years ago

Linear equations with distributing drag and drop

nadya68 [22]

Answer:

A.)

distribute
add 7x to both sides
add 6 to both sides
divide both sides by 10

B.)

distribute
combine like terms
subtract 12x from both sides
add 6 to both sides
divide both sides by 10

7 0

3 years ago

Write the Slope intercept form of the equation of the line given points<br> 0,1 and 2,2

masha68 [24]

First we should get the slope.

m=y2 -y1/x2-x1

=2-1/2-0
=1/2

y=m(x-x1) +y1
=1/2(x-0) +1
=1/2x+1

3 0

3 years ago

Yara multiplies and divides a certain number by the same

Butoxors [25]

For this case we have to:

x: Represents the unknown number

y: Represents the exponent of base 10

So, considering a system of equations we have:

$x * 10 ^ y = 40,000\\\frac {x} {10 ^ y} = 0.000004$

From the first equation we have:

$10 ^ y = \frac {40,000} {x}$

Substituting in the second equation:

$\frac {x} {\frac {40,000} {x}} = 0.000004\\\frac {x ^ 2} {40,000} = 0.000004\\x ^ 2 = 40,000 * 0.000004\\x ^ 2 = 0.16\\x = \pm \sqrt {0.16}$

We choose the positive value:

$x = 0.4$

So, the number is 0.4.

So:

$10 ^ y = \frac {40,000} {0.4}\\10 ^ y = 100,000\\y = 5$

Thus, the exponent is 5.

Answer:

Yara use 0.4 and $10 ^ 5$

8 0

3 years ago

Eve paid $1.12 for dozen eggs at store. determine cost of 3 eggs.

bogdanovich [222]

he would have paid 3.36

6 0

3 years ago

Read 2 more answers