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  • 24-02-2019
  • Mathematics
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To the nearest hundredth, what is the sine of the acute angle formed by the line whose equation is y = 3x - 3 and the positive x-axis?

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calculista
calculista calculista
  • 05-03-2019

Answer:

The sine of the acute angle is [tex]0.95[/tex]

Step-by-step explanation:

using a graphing tool

see the attached figure

Let

A-----> the acute angle formed by the given line and the positive x-axis

In the right triangle XYZ

we know that

[tex]sin(A)=\frac{xy}{xz}[/tex]

we have

[tex]xy=3\ units[/tex]

[tex]yz=1\ units[/tex]

Applying the Pythagoras Theorem find the value of xz

[tex]xz^{2}=3^{2}+1^{2}\\ \\xz^{2}=10\\ \\xz=\sqrt{10}\ units[/tex]

substitute

[tex]sin(A)=\frac{3}{\sqrt{10}}=0.95[/tex]

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