Numerade

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What does a trade surplus mean? Discuss the factors are accounting for Ghana's trade surplus.

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\[ B_{1}=\left(\begin{array}{lll} 1 & 0 & 2 \\ 1 & 1 & 1 \\ 3 & 1 & 1 \end{array}\right) \] a) compute $ \operatorname{det} B_{1} $ b) $ \exists B_{1}^{-1} $ ? Why? c) find $ B_{1}^{-1} $ if $ f B_{1}^{-1} $. If $ B^{-1} $ find $ \left(I+B_{1}\right)^{-1} $ by 2 ways,

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3. (10 points) Prove the acceleration of the center of mass in a two-body problem \overrightarrow{a}_G = 0 and that the center of mass G moves in a straight line with constant speed \overrightarrow{v}_G.

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With an interest rate of 10 % how long does it take for an invest ment to triple, if the interest is compounded (a) annually? (b) monthly? (c) continuously?

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Prior to attending college, Malik mis offered a lucrative four-year contract as an actor on a daytime soap opera. Assuming that acting and attending college are Malik's preferred alternatives and that he must choose between these two options, his opportunity cost of attending college after receiving the offer on the soap opera making him likely to attend college than before he received the offer. increases; more increases; less decreases; more stays the same; equally likely

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Allopatric speciation happens when populations are split by some geological event. O True O False

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Probability Scores 0.05 0 0.33 3 0.14 5 0.27 8 0.15 9 0.06 11 Find the expected value of the above random variable.

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1. Assume the following information. Probability of failure Maturity= Complexity= Dependancy= 0.45 0.27 0.69 Consequences of failure Cost= 0.18 Schedule= 0.59 Reliability= 0.23 Performance= 0.63 Calculate the overall risk factor and assess the level of risk for this project.

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Consider the differential equation $y'(t) = dt^3 - 3e^{4t}$ with initial condition $y(0) = 5$. What must be the value of the parameter $d$ if $y(2) = 3$? Round your answer to the nearest integer. a) 558 b) 715 c) 833 d) 872

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1: For the following network, when $v_1(t) = 2e^{-2t}u(t) + 3cos(3t + 3^\circ)u(t)$, the stead-state response is observed as $v_{2_{ss}}(t) = Acos(\omega t + \theta)u(t)$. Find the values of: a. A b. $\omega$ c. $\theta$ + $N(s) = \frac{V_2(s)}{V_1(s)} = \frac{3s + 1}{s(s + 2)}$ V? -

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jes-s m.