Answer:
[tex]\frac{7}{\sqrt{74} }[/tex]
Step-by-step explanation:
Please look at the attached photo for your information
Sine value = [tex]\frac{Height}{hypotenuse}[/tex] but here we know that the tip of a blade is at (−5, 7)
=> Heigh = 7 (the value of y)
=> Hypotenuse = [tex]\sqrt{7^{2} + 5^{2} }[/tex] = [tex]\sqrt{74}[/tex]
We substitute two values have just been found in the sine value fomula:
[tex]\frac{7}{\sqrt{74} }[/tex]
