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bazaltina [42]
3 years ago
5

What is the frequency of the function y = cos5x?

Mathematics
1 answer:
Tju [1.3M]3 years ago
3 0
The given formula is a sinusoidal equation. Sinusoidal equations are trigonometric functions involving sine and cosine functions. Graphically, they look like wave patterns having amplitudes and periods. The general form of a sinusoidal equation is 

y = A cos(Bx + C) + D

where

A = amplitude
B = frequency
C = shift on starting angle
D = shift of wave on the y-axis

Thus, can pattern out that A=1, B=5, C=0 and D=0 in the given equation. The SI unit of frequency is Hertz (Hz) or 1/second. Hence, the frequency of the function is 5 Hz.
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Hey can you please help me posted picture of question
Ira Lisetskai [31]
Answer:
40x² + 65x + 25

Explanation:
We will just multiply each term from the first bracket by each term from the second and then combine like terms to get the final expression.

This would be done as follows:
(5x + 5)(8x + 5)
5x(8x) + 5x(5) + 5(8x) + 5(5)
40x² + 25x + 40x + 25
40x² + 65x + 25

Hope this helps :)
6 0
3 years ago
Given g(x) = (x - 3)2 and h(x) = 2x + 1, which of the following is (g.h)(5)?
Andru [333]
The answer is B 38 for g.h and 5
5 0
3 years ago
I don’t understand what to write
anzhelika [568]
I think you have to solve like each section like (5x3+3)2 first solve that and then solve the middle one and then the last one and I think they all have to be equal to each other , and if they aren’t then her anwser isn’t correct
4 0
3 years ago
How do I answer this—
Katen [24]

Answer:

angle 2 = 87 degrees

" /_ 2=87° "

4 0
3 years ago
Water tank A has a capacity of 550 gallons and is 66% full. Water tank B is 53% full. The ratio of the capacity of T. How much w
Anna71 [15]

Tank A capacity = 550 gallons       66% x 550 gallons = 363 gallons in Tank A

How about the water in tank B?

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3 years ago
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