(1 point) A company manufactures x units of one item and y units of another. The total cost C in dollars of producing these two items is approximated by the function C = 7x2 + 4xy + 5y2 + 800. (a) If the production quota for the total number of items (both types combined) is 88, find the minimum production...
Two boats leave from the same point and the same time. If one travels north at 15 mph and the other travels east at 20 mph, how fast will the distance between them be changing after 2 hours?
At least one of the answers above is NOT correct. (1 point) Suppose f(x, t) = e 3t sin(x + 2t). (a) At any point (x, t), the differential is df = e^(-3t)cos(x+2t)dx+(e^(-3t))(2cos(x+2t)-2sin(x+2t))dt (b) At the point (-1,0), the differential is df = cos(-1)dx+(2cos(-1))+3sin(-1)dt (c) At the point (-1,0) with dx = -0.5 and dt = 0.3, the differential is...
correct incorrect At least one of the answers above is NOT correct. (1 point) Instructions: When entering a number in a blank below, always use a numeral. For instance enter "4" instead of writing "four". Use the HW3 Information Sheet for Axioms and Definitions. When referring to Axiom 2, for example, write a 2. When referring to Definition 4, for...
6. Fluids (16 points). At one point in a vertical pipeline the water s d is 3.00 m/s and the pressure is the line, 12.0 m lower than the first, the diameter of the pipe is at the first (Pwater 1000 kg/m3 the second point. (b, points) Find the pressure at the second point. 5.00 × 105 Pa. At a...
Question 3 (1 point) Which one of the following sets of reagents will undergo a precipitation reaction when mixed in water? A) CoPO4 KBr B) CuCl2 + CaS C) Ni(CIO4)2Na2SO4 D) CH3COONa +FeCl3
Which one of the following is a normal vector for the plane through the point P(1.-3 . . . O A.(-5,4,3) O B. (7,-6, -5) O C.(-5, -4,3) O D.(-11,8,7) O E. (4, -2,-2) . . Question 4 of 40 1.0 Points Which one of the following is a normal vector for the plane through the point P(1, -3, 5)...
(1 point) The shelf life of a batteries produced by one major company are normally distributed with a mean of 4.1 years and a standard deviation of 0.2 years. The figure below shows the distribution of shelf lives of batteries produced by one major company Calculate the shaded area unde the curve. Express your answer in decimal form with three...
For 6 points, solve ONE of the following three problems. Optimization Find the point(s) on the curve 6-(y + In(x))+1 = 6r where the slope of the line tangent to the curve is a minimum. The hypotenuse of the right triangle shown below is tangent to the curve y = -x+x+3, while the other two sides lie on the positive...
Use of the economic order quantity Select one: a. determines the reorder point. b. determines the saftey stock. c. provides the lowest overall inventory costs d. All of the options. Which of the following is generally considered to be the least liquid of current assets? Select one: a. Accounts receivable. b. Inventory. c. Marketable Securities. d. Cash equivalents.