Question

Engineers are analyzing the performance of windshield wiper blades. At the end of one swipe, the tip of a blade is at (−5, 7) when represented graphically. What is the sine value of this function?

Answer 1

`(7)/(√(74) )`

Explanation:

Please look at the attached photo for your information

Sine value =
`(Height)/(hypotenuse)` but here we know that the tip of a blade is at (−5, 7)

=> Heigh = 7 (the value of y)

=> Hypotenuse =
`\sqrt{7^(2) + 5^(2) }` =
`√(74)`

We substitute two values have just been found in the sine value fomula:

`(7)/(√(74) )`