What are the similarities between the sine, cosine,
and tangent ratios? What are the differences?

Sine= Opposite/Hypotenuse

Cosine= Adjacent/Hypotenuse

Tangent= Opposite/Adjacent

Step-by-step explanation:

Similarities: All the trigonometric functions are periodic functions. All these trigonometric function values can be found by using special right triangles from the unit circle.   Diffferences: The tangent has different domain and range values from sine and cosine. The tangent function is not a continuous function, unlike sine and cosine.

Step-by-step explanation:

$3720

step-by-step explanation:

taxable income = $31000

as per the 2018-2019 us tax bracket, the tax rate is 12% for an individual whose taxable income is between $9,526 to $38,700.

so, the tax to be paid by him = 12% of 31000

= 0.12 * 31000     [12% converted to decimal as 0.12]

= $3720