3. Let A ={2, 3, 4, 5} and B = {8, 9, 10, 11}. Let R be the relation 'is factor of' from A to B.
(a) Write R in the roster form. Also, find Domain and Range of R.
(b) Draw an arrow diagram to represent the relation.

d

step-by-step explanation:

step-by-step explanation:

you divide the denominator by the numerator on both sides and if the quotients are equal then the fractions are equivalent

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