Numerade

Questions asked

BEST MATCH

Business: Revenue, Cost, and Profit The cost, in dollars, to a company to produce x units of a product is modeled by the functionC(x) = 0.02x^3 - 0.5x^2 10x 50The revenue, in dollars, the company expects from the sale of x units of the product is modeled byR(x) = - 1.1x^2 41.5xThe profit, in dollars, realized on the sale of x units of the product is just the revenue minus the cost, that is,P(x) = R(x) - C(x)Construct a model for the profit function.Find the profit when the number of units sold is 19.Find the profit when the number of units sold is 20.Find the profit when the number of units sold is 21.What is the trend in the profit as the number of units produced and sold increases from 19 through 21?

View Answer

BEST MATCH

[x-(-5+6i)][x-(-5-6i)]

View Answer

BEST MATCH

Question 3 < > Score on last try: 0 of 8 pts. See Details for more. > Next question Get a similar question You can retry this question below 1 Let $f(x) = \frac{1}{x - 2}$ on the closed interval [3, 6]. Part a) Find the average rate of change for $f$ on [3, 6]. (No decimal answers. If necessary, enter your answer as a reduced fraction.) Average rate of change = 1 Part b) The numerator and denominator of $f(x) = \frac{1}{x - 2}$ are both polynomials, and polynomials are continuous and differentiable everywhere. So $f$ is continuous when $x - 2 \neq 0$. And, since 2 is not in the closed interval [3, 6], $f$ is continuous on [3, 6] and differentiable on (3, 6). This means the $f$ satisfies the conditions of the Mean Value Theorem. Apply the Mean Value Theorem to find all numbers $c$ in (3, 6) where $f'(c)$ is equal to the average rate of change. (If more than one value of $c$ exists, enter your answers as a comma separated list. If $c$ does not exist, enter DNE.) c = Question Help: Video Submit Question

View Answer

BEST MATCH

\begin{cases} \frac{\partial v}{\partial t} + \frac{c_0^2}{\rho_0} \nabla p = 0\\ \frac{\partial p}{\partial t} + \rho_0 \text{div } v = 0 \end{cases} ( * ) \\ \frac{\partial^2 v}{\partial t^2} = c_0^2 \Delta v (**)

View Answer

BEST MATCH

A ball is moving at 3 m/s and has a momentum of 18 kg m/s. What is the ball's mass? 4 kg 6 kg 12 kg 144 kg None of these

View Answer

BEST MATCH

Let $z = g(x, y) = x^3 + xy^2 - 2x + 1$, where $x = r \cos(\theta)$ and $y = r \sin(\theta)$. \\ Use the chain rule to find $\frac{\partial z}{\partial r}$ at $(r, \theta) = (2, \frac{\pi}{3})$.

View Answer

BEST MATCH

Show the following process on P-v, T-s and h-s diagrams: i. Constant volume cooling for perfect gas ii. Constant pressure heating for vapours iii. Isothermal compression for perfect gas iv. Isentropic expansion for vapours

View Answer

BEST MATCH

Viewing Saved Work Revert to Last Response SERCP917.P.019.SOLN. MY NOTES ASK YOUR TEACHER 0/1 POINTS PREVIOUS ANSWERS A wire of initial length Lo and radius ro has a measured resistance of 3.5. The wire is drawn under tensile stress to a new uniform radius of r = 0.15ro. What is the new resistance of the wire? 155.56 Your response differs significantly from the correct answer. Rework your solution from the beginning and check each step carefully. Need Help? Badly Talk to Tutor Submit Answer Practice Another Version SERCP917.P.043. MY NOTES ASK YOUR TEACHER 0/1 POINTS The potential difference across a resting neuron in the human body is about 85.0 mV and carries a current of about 0.560 mA. How much power does the neuron release? UW Need Help? Reach out to Tutor 0/1 POINTS SERCP917.P.050 MY NOTES ASK YOUR TEACHER A car owner forgets to turn off the headlights of his car while it is parked in his garage. If the 12.0-V battery in his car is rated at 91.0 A-h and each headlight requires 27.0 W of power, how long will it take the battery to completely discharge? hours Need Help?

View Answer

BEST MATCH

1. Write down, In the following stress Vs Strain rate curve, what does each of the curves represent? Shearing Stress, r To nuclemal fleid Rate of Shearing Strain, $\frac{\partial u}{\partial y}$ 2. In the stress vs strain curve, show how ideal fluid line would look like? Show it in the curve shown above. 3. Write down the general equation representing the 'red color' straight line in the Stress Vs Strain rate curve.

View Answer

BEST MATCH

A linear, time-invariant differential equation system with the input x(t) and output y(t) is given below: dx(t)/dt = p Solve the impulse response h(t) of the system. Hence, solve the zero-state response Yzs(t) using the convolution integral method if the input is given as x(t) = u(t).

View Answer

nancy d.