NOTE: SCREENSHOTS 4 & 5 (IN RED) ARE FOR REFERENCE ONLY! USE THEM TO BE ABLE TO SOLVE THE REGULAR SCREENSHOTS (THAT IS: REGULAR 4 & 5). SOLVE ALL PARTS! 1, 2, and 3 ARE ALL GOOD AND DO NOT NEED REFERENCES! THANK YOU!!!!!

X 9.4.39 Question Help Use the four-step process to find f'(x) and then find f'(4), f'(6), and f'(8). f ( x ) = 141x +7 f' ( x) = Enter your answer in the answer box and then click Check Answer. ? 3 parts remaining Clear All Check Answer 9.5.61 Question Helpv 0 If an object moves along the y-axis (marked in feet) so that its position at time x (in seconds) is given by f(x) = 140x -10x2, nd the following. (A) The instantaneous velocity function v = f'(x) (B) The velocity when x= 0 and x = 1 sec (C) The time(s) when v = 0 (A) V(X) = Enter your answer in the answer box and then click Check Answer. Parts remaining Clear All 3 X 9.5.89-BE Question Help The total sales of a company (in millions of dollars) t months from now are given by S(t) = 0.05t + 0.4t2 + 9t + 3. (A) Find S'(t). B) Find S(5) and S'(5) (to two decimal places). (C) Interpret S(12) = 255.00 and S'(12) = 40.20. (A) S'(t) = Enter your answer in the answer box and then click Check Answer. ? 3 parts remaining Clear All Check Answer 9.7.41-BE Questions." 9 The prot (in dollars) from the sale of x lawn mowers is P(x) = 40x - 0.04x2 - 650. (A) Find the average prot per mower if 20 mowers are produced. (E) Find the marginal average prot at a production level of 20 mowers, and interpret the results. (C) Use the results from parts (A) and (B) to estimate the average prot per mower if 21 mowers are produced. (A) ll 20 mowers are produced. the average prot per mower is $ 6.70'. (Round to the nearest cent as needed.) (B) The marginal average prot at a production level at 20 units is S 1.59V per mower. (Round in the nearest cent as needed.) Choose the correct interpretation or 5120) = $1.59 per mower. gX A. At a production level of 20 mowers the average prot is $1.59 per mower. * B. At a production level of 20 mowers the average prot is increasing at a rate of $1.59 per mower. (:4 At a production level of 20 mowers a unit increase in production will increase the total prot by $1.59 per mower. (C) Using parts (A) and (B), the stimaie ofthe average prot per mower it 21 mowers are produced is $ (Round to the nearest cent as needed.) Use this as a reference for screenshot #4 (in Blue) Enter you answer in the answer box and then click check Answer. Allpansshowing ClearAll CheckAnswer ' 4 b 9..741-BE Question HelpV O The prot (in dollars) from the sale of x lawn mowers is P(x) = 50x - 0.05x2 - 650. (A) Find the average prot per mower if 30 mowers are produced. (E) Find the marginal average prot at a production level of 30 mowers, and interpret the results. (C) Use the results from parts (A) and (B) to estimate the average prot per mower if 31 mowers are produced. (A) If 30 mowers are produced, the average prot per mower is $ (Round in the nearest cent as needed.) Enter your answ In the answer box and then click Check Answer. Pans remaining Clear All X 9.7.43-BE Question Help The price p (in dollars) and the demand x for a particular clock radio are related by the equation x = 3000 - 10p. (A) Express the price p in terms of the demand x, and find the domain of this function. B) Find the revenue R(x) from the sale of x clock radios. What is the domain of R? (C) Find the marginal revenue at a production level of 2500 clock radios. (D) Interpret R'(2700) = - 240.00. (A) p = p(x) = 300 -0.1x What is the domain of p(x)? O A. x$4000 O B. All real numbers C. OSXS 3000 XD. X20 (B) R(x) = 300x - 0.1x2 What is the domain of R(x)? O A. XS4000 B. OSXS 3000 Use this as a reference! O C. OSXs 10 XD. X20 (C) The marginal revenue at a production level of 2500 clock radios is $ - 200.00 . (Round to the nearest cent as needed.) (D) Which of the following statements is NOT a correct interpretation of R'(2700) = - 240.00? O A. The total revenue for producing 2701 clock radios is approximately $240.00 less than the total revenue for producing 2700 clock radios. O B. If 2700 clock radios are produced, there will be no revenue, since R'(2700) is negative. O C. At a production level of 2700 clock radios, the change in revenue per unit change in production is approximately - 240.00 dollars. Click to select your answer and then click Check Answer. ? All parts showing Clear All Final Check 9.7.43-BE' Question He." at The price p (in dollars) and the demand x for a particular clock radio are related by the equation x = 3000 - 10p. (A) Express the price p in terms of the demand x, and nd the domain of this function, (B) Find the revenue R(x) from lhe sale of x clock radios. What is the domain of R? (C) Find the marginal revenue at a production level of 2100 clock radios. (D) Interpret R'(2800) = 260.00. (A) p = p(x) = Enter yo answer in the answer box and then click Check Answer. Pans remaining Clear All