Look at the triangle: a right angle triangle is shown with hypotenuse equal to 17 centimeters. an acute angle of the triangle is labeled as x degreeswhat is the value of cos x°? (1 point)select one: a. 8 ÷ 17b. 17 ÷ 8c. 15 ÷ 17d. 8 ÷ 15

answer: 204

step-by-step explanation:

we are told that the revenue is

x⋅(4080−10x)=−10x^2+4080x

this is a quadratic function, so to maximize it we should find the x-value of its vertex. recall that the x-value of the vertex of the parabola ax^2+bx+c is given by the formula −b/2a.

so in this case, we have a=−10 and b=4080, so the x-value of the vertex is

−b/2a= −(4080)/2(−10)=204

the answer is b.

step-by-step explanation: