III. The marginal cost function, in 100 of dollars, of the production of x units of trousers, 3x2 +12
where x is expressed in a thousand of units, with x € ]0,10), is given by f(x)
(6.5 pts)
1. Calculate f (5). Interpret this result in terms of cost.
2. Study the sense of variation of f and construct the table of variations of f.
3. For which production will the enterprise attain a minimum marginal cost? Find this
marginal cost.

answer

the correct answer is

explanation

the given function is

the excluded values are obtained by solving:

we factor to obtain:

the excluded values are

c. 27 units.

step-by-step explanation:

we are told that in circle a, ∠bae ≅ ∠dae.

we can see from our given diagram that in and ;

, as these are radii of our given circle.

therefore, by sas congruence postulate.

hence, side be will be equal to side de as corresponding parts of congruent triangles are congruent. so we can set an equation to find the value of x as:

now let us substitute x=17 in the expression for the length of be.

therefore, length of be will be 27 units and option c is the correct choice.

4.5%

step-by-step explanation: