If f(x) = 3x and g(x) = 7x-1, what is (fog)(4)?

83

Step-by-step explanation:

solution:

we have

f(x)= 3x & g(x)= 7x-1

now

fog= f{g(x)}

or, f(7x-1)

or, 7.3x-1 = 21x-1

so, fog(4)= 21*4-1=84-1=83

the answer is (4,3)

since the rule for r0, 90º is (-y,x) and it was already applied to form the image, all you have to do is reverse the answer using this formula.

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