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stephanie hartman

stephanie h.

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A company determines that its marginal revenue per day is given by R'(t), where R(t) is the total accumulated revenue, in dollars, on the tth day. The company's marginal cost per day is given by C'(t), where C(t) is the total accumulated cost, in dollars, on the tth day. R'(t) = 90e^t, R(0) = 0; C'(t)=90-0.4t, C(0) = 0 a) Find the total profit P(T) from t = 0 to t = 10 (the first 10 days). $$P(T) = R(T) - C(T) = \int_0^T [R'(t) - C'(t)] dt$$ The total profit is $. (Round to the nearest cent as needed.)

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yes or no is pentane the oxidized product of the following alcohol oxidization reaction? If no reaction, select "None". ⟶

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Propose a plausible mechanism for the following process, called iodolactonization: I O 12 O OH

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3 A person gardening pushes a lawnmower of mass 18 kg at constant speed. To do this requires a force \( P \) of 80 N directed along the handle, which is at an angle of \( 40^{\circ} \) to the horizontal (Figure 3.15). a Calculate the horizontal frictional force \( F \) on the mower. b If this frictional force were constant, what force, applied along the handle, would accelerate the mower from rest to \( 1.2 \mathrm{~ms}^{-1} \) in 2.0 s ?

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Find the zeros for the polynomial function and give the multiplicity for each zero. State whether the graph crosses the x-axis or touches the x-axis and turns around at each zero.\ f(x) = 2(x-9)(x-3)^2

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At what point does a firm maximize profits: where the profit per unit is greatest, or where marginal revenue equals marginal cost? Each answer sounds plausible, so the key is to think about each one in a concrete way. To help do that, recall the data for calculating Mr. Plow's profits, below:

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To divide each element in array [X] by the corresponding element in array [Y], we use the following MATLAB command: Select one: a. X /Y b. None of the given answers c. Y .X d. X .Y

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Part A Determine the moment produced by force \(\mathbf{F} = \{-10\mathbf{i} + 9\mathbf{j} + 5\mathbf{k}\}\) N about the diagonal OD of the rectangular block (Figure 1). Enter the \(x\), \(y\), and \(z\) components of the moment separated by commas. \(M_{OD,x}, M_{OD,y}, M_{OD,z} = 0.54, 0.54, 0.27\) N\(\cdot\)m

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4) Figure 1 shows a balanced three-phase Y-Y system.Given VRN=13440V The load impedance per phase is Z = 20 + j 20 Q. Assume a positive sequence. R iR R 0000 Alternator Load Iy Figure 1 (i) (ii) (iii) Find the line and phase voltage at the load side Find the line and phase current at the load side Calculate the active power, reactive power, and apparent power delivered to the load. Also determine the power factor of the system.

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QUESTION 9 Imagine a block with density 1.3 g/cm³ was dropped in to the beaker, where would the block rest. $\rho_{oil}$=0.930 g/cm³ $\rho_{water}$=1 g/cm³ $\rho_{Mercury}$=13.6 g/cm³ At the bottom of the beaker Between the water and mercury Between oil and water On top

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