#4 Find value of x. Round answer to nearest tenth. Help please.

Step-by-step explanation:

From the given right angle triangle,

The hypotenuse of the right angle triangle is x

With ∠33 as the reference angle,

The adjacent side of the right angle triangle is 15

The unknown side is the opposite side of the right angle triangle.

To determine x, we would apply

the cosine trigonometric ratio.

Cos θ, = adjacent side/hypotenuse. Therefore,

Cos 33 = 15/x

x = 15/Cos 33 = 15/0.839

x = 17.9 to the nearest tenth

- 2 + 10x³ - 21x² + 19x - 4

step-by-step explanation:

each term in the second factor is multiplied by each term in the first factor

x²(- 2x² + 4x - 1) - 3x(- 2x² + 4x - 1) + 4(- 2x² + 4x - 1) ← distribute

= - 2 + 4x³ - x² + 6x³ - 12x² + 3x -8x² + 16x - 4

collect like terms

= - 2 + 10x³ - 21x² + 19x - 4 ← in standard form

you need to show us the graph.

step-by-step explanation: