The right answer for the question that is being asked and shown above is that: "y = x/26 and y = -0.030(x-500)2+15,900." A company plans to sell bicycle helmets for $26 each. The company's business manager estimates that the cost, y, of making x helmets is a quadratic <span>function with a y-intercept of 8,400 and a vertex of (500, 15,900).</span>
The value of cos 4x from the given identity is 0.999
<h3>Trigonometry identity</h3>
Given the cosine identity
cos8x = 13/36
Determine the value of x
8x = arccos(13/36)
8x = 0.36111
x = 0.36111/8
x = 0.04514
Determine the value of cos4x
cos4x = cos4(0.04514)
cos4(0.04514) = 0.999
Hence the value of cos 4x from the given identity is 0.999
Learn more trig identity here; brainly.com/question/7331447
Answer:
v=15z-pz
Step-by-step explanation:
Solve for v by simplifying both sides of the equation, then isolating the variable.