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2 years ago

6

Evaluate the algebraic expression 18 + (- 31) =

1 answer:

frosja888 [35]2 years ago

8 0

Answer:

-13

Step-by-step explanation:

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KATRIN_1 [288]

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2 years ago

Based on the family the graph below belongs to, which equation could represent the graph?

Ostrovityanka [42]

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Equation 1 is the equation which represents the graph.

Step-by-step explanation:

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2 years ago

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3 years ago

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What is the frequency of the sinusoidal graph ?

disa [49]

Answer:

The frequency of the given sinusoidal graph is 4.

Step-by-step explanation:

The frequency of a sinusoidal graph is the number of cycles it completes in the interval 0 to 2π radians.

From the given sinusoidal graph it is noticed that the the graph complete its one cycle in the interval 0 to $\frac{\pi}{2}$ .

If the complete its one cycle in $\frac{\pi}{2}$ , then the number of cycles completed by the graph in the inteval 0 to 2π is

$\frac{\pi}{2}\times frequency=2\pi$

$frequency=2\pi \times \frac{2}{\pi}$

$frequency=4$

Therefore the frequency of the given sinusoidal graph is 4.

7 0

3 years ago