Numerade

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Given the following equation of a circle in general form, find the equation in standard form by completing the square.3x2+30x+3y2+6y+51=0

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What is the pH of 0.100 M FeCl2? (pKa Fe2+(aq) = 9.4)

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Solve the system. $x_1 - 3x_3 = 13$ $4x_1 + 4x_2 + x_3 = 37$ $2x_2 + 3x_3 = 3$ Select the correct choice below and, if necessary, fill in the answer boxes to complete your choice. A. The unique solution of the system is $(x_1, x_2, x_3) = (16, -7, 1)$. (Type integers or simplified fractions.) B. The system has infinitely many solutions. C. The system has no solution.

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Blue light of wavelength $\lambda$ passes through a single slit of width $a$ and forms a diffraction pattern on a screen. If the blue light is replaced by red light of wavelength $2\lambda$, the original diffraction pattern is reproduced if the slit width is changed to what? No change is necessary. $a/4$. $4a$ $a/2$. $2a$

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15-18 What is the frequency, f, of a sine wave that completes a. 10 cycles per second? b. 500 cycles per second? c. 50,000 cycles per second? d. 2,000,000 cycles per second?

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A good that is rival in consumption and not excludable is called a Group of answer choices public good. common resource. club good. private good.

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Find the derivative of the following function.\\ $y = \frac{-5}{(8x^5+5)^6}$\\ $\frac{dy}{dx} = $

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Part A At 100°C, $K_c$ = 4.72 for the reaction 2NO2 (g) $\rightleftharpoons$ N2O4 (g) An empty 10.0 L flask is filled with 2.30 g of NO2 at 100°C. What is the total pressure in the flask at equilibrium? $P_{total}$ = 0.147 atm Check your rounding. Your final answer should be rounded to 3 significant figures in the last step. No credit lost. Try again. Submit Previous Answers Request Answer

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Find the eigenvalues and eigenvectors of matrix A. The characteristic polynomial is p_(A)(lambda )= det(A-lambda I). A=[[2,2,4],[2,5,8],[4,8,17]] 4. Find the eigenvalues and eigenvectors of matrix A. The characteristic polynomial is p(A) det(A-I). 2 2 4 5 8 4 8 17

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True or False: Many terrestrial and aquatic biomes have vertical layers in which various specialized organisms are uniquely found

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