Numerade

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Q.1 given the matrices A and B below $A = \begin{bmatrix} -5 & 1 & -1 \\ -2 & 4 & 4 \end{bmatrix}$, $B = \begin{bmatrix} 4 & -5 & -5 \\ -4 & 3 & 0 \end{bmatrix}$ Compute $-2 \cdot A - 6 \cdot B =$ $\begin{bmatrix} & & \\ & & \end{bmatrix}$ Q.2 given the matrices A and B below $A = \begin{bmatrix} 6 & 3 & 1 \\ -5 & -2 & 6 \end{bmatrix}$, $B = \begin{bmatrix} -2 & -4 & -5 \\ -4 & 3 & -3 \\ -1 & 2 & 4 \end{bmatrix}$ * Is the matrix product AB defined? if it is defined compute the product below: $AB = \begin{bmatrix} & & \\ & & \end{bmatrix}$

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Find the derivative of f(x)=(4x^(4)+3x-5)/(x) 4. Find the derivative of $f(x) = \frac{4x^4+3x-5}{x}$

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a charge of +1000 C is 1m to your left. You are holding a charge of -1C. Which of the following statements is/are true?

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Each step in the following process has a yield of 70.0%. $CH_4 + 4Cl_2 \longrightarrow CCl_4 + 4HCl$ $CCl_4 + 2HF \longrightarrow CCl_2F_2 + 2HCl$ The $CCl_4$ formed in the first step is used as a reactant in the second step. If 8.50 mol $CH_4$ reacts, what is the total amount of HCl produced? Assume that $Cl_2$ and HF are present in excess. moles HCl:

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A thin-walled column of length 4 m has the cross section shown in Fig. 2. If the ends of the column are pinned and free to warp, calculate the buckling load and specify the mode of failure. Use $E = 70GPa$ and $G=30GPa$. [70 pts] $I_w = \frac{b^3t^3}{144} + \frac{h^3w^3}{36}$

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3) Fluorosis is associated with: * A) insufficient intake of fluoride. B) Alzheimer's disease. C) osteoporosis D) consuming too much fluoride. 1 point

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(2pts) A particle moves along the x axis from xi to xy. Of the following values of the initial and final coordinates, which results in the displacement with the largest magnitude?@x; = -4 m, xy = 4 mB I; = -4 m, xy = -8 m0 x; = 4 m, xy = -2 m I; = -4 m, xy = 2 m

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A 9.5-mC charge is at x=15cm,y=5.0cm, and a -3.2-mC charge is at x=4.4cm,y=11cm. (a) Find the force on the negative charge (both magnitude and direction). (b) What is the electric field on the positive charge? (both the magnitude and direction). A 9.5-mC charge is at x=15 cm,y =5.0 cm, and a -3.2-mC charge is at x =4.4 cm, y=11 cm (a) Find the force on the negative charge (both magnitude and direction) (b) What is the electric field on the positive charge? (both the magnitude and direction).

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At the end of the electron transport chain, where do the electrons end up on? Group of answer choices Oxygen Water NADPH Carbon dioxide

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Design and draw a catalytic cycle for the production of butanal from prop-1-ene. Recognize which step is responsible for the selectivity of formation of the n- or iso-isomer.

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