Questions asked
014 (part 1 of 2) 10.0 points An object is located 23 cm from a diverging lens with a focal length of 31 cm. Determine the image distance. Answer in units of cm. 015 (part 2 of 2) 10.0 points Determine the magnification of the image.
f(t)=e^(2t)(t+2)^(2), find L{f(t)} 1. $f(t) = e^{2t}(t+2)^2$, find $\mathcal{L}\{f(t)\}$
Antibiotic resistance is becoming more common in disease-causing bacteria because Multiple Choice antibiotics are used in feed for livestock even in the absence of infection. antibiotics are overprescribed by doctors. some patients do not take the antibiotics as directed. antibiotics are used to treat infections in cattle, chickens, and other animals used for agricultural purposes. All of the answer choices are correct.
As the design engineer you wish to ensure your device will yield before it buckles. Your part is essentially a column with a circular cross section of radius = 0.029 m, length of 1.4 m, and it is fixed at both ends. You plan to use some sort of steel (all carbon steels have an elastic modulus of approximately 207 GPa, due to the iron content). What is the maximum yield strength you can accept for your steel so that the part will yield before it buckles? Give your answer in MPa, to one decimal place, enter only the number not the units.
Price ($) 90 60 30 0 150 300 450 600 750 Sunglasses D Q Refer to the Figure. The market for sunglasses is in equilibrium at a price of ____ and a quantity of ____ sunglasses A. $30; 600 B. $60; 450 C. $90; 300 D. $30; 300
Part 3 out of 4 Give the correct isotope symbol to identify an atom that contains 54 protons, 54 electrons, and 72 neutrons. Click in the answer box to activate the palette.
In Problems 22 through 25, for each initial-value problem and the indicated step size $h$, use the following methods to compute the solution estimates at the first two mesh points (beyond the initial point): a. Improved Euler b. Heun c. Ralston 24. $xy' = y - 3x$, $y(1) = 1$, $1 \le x \le 3$, $h = 0.1$
Use the following information to answer questions 12-15: The price $p$ (in dollars) and the quantity $x$ sold of a certain product obey the demand equation $x = -5p + 100$ $0 \leq p \leq 20$. Use complete sentences when answering. 12.) Express the revenue R as a function of x. Your answer 1 point 13.) What is the revenue if 15 units are sold? 1 point Your answer 14.) What quantity x maximizes revenue? What is the maximum revenue? Type your answer as a point. 2 points Your answer 15.) What price should the company charge to maximize revenue? 1 point Your answer
Use integration by parts to evaluate the definite integral. Show work. Give your answer as an exact value.\\ $\int_0^{\frac{\pi}{2}} x \cos x \, dx$
X is distributed uniform discrete on \{0,1,2,3,4,5,6,7,8,9\}. What is the variance of the random variable X? a. 7.87 b. 5.00 c. 8.25 d. 10
