Numerade

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lesson 7.2 4. i) Determine whether each sequence is arithmetic or geometric. ii) Determine the general term, the recursive formula, and $t_6$. a) 15, 30, 45, ... b) 640, 320, 160, ... c) 23, -46, 92, ... d) 3000, 900, 270, ... e) 3.8, 5, 6.2, ... f) $\frac{1}{2}, \frac{1}{3}, \frac{2}{9}, ...$ 9. Sar a) b) c) d)

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Question 3 A plant has two generators $G_1$ and $G_2$ supplying the plant bus. Their costs of generation are given by: $C_1 = 0.01P_{G1}^2 + 45P_{G1} + 900$ $/h$ $C_2 = 0.02P_{G2}^2 + 43P_{G2} + 2500$ $/h$ $G_1$ cannot operate below 50 MW or above 600 MW while $G_2$ cannot operate below 50 MW or above 800 MW. Calculate: (a) the optimum values of $P_{G1}$ and $P_{G2}$ such that the system load demand of 500 MW is met; and (7 marks) (b) the increase in the overall generation cost of the plant due to the generation limits when the system load demand is 1200 MW. (18 marks) (Total: 25 marks)

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Question 11 B-cells express OB-cell receptors (BCR) Oare diverse in terms of their BCR Express different types of BCR on each cell O a and b O a, b and c 5 pts

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The events A and B are independent. P(A) = 0.2 and P(B) = 0.7. What is the P(A and B)? a. 0 b. 0.9 c. 0.14 d. 0.5

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According to Bartholomew and Horowitz, which one of the following statements is correct? Those of preoccupied attachment style are comfortable to be alone. Those of secure attachment style worry about being not accepted and being alone. Those of fearful attachment style tend to get close to others. Those of insecure attachment style have negative views of themselves or others.

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If a country wanted to change a trade agreement to increase GDP, what could they do? They could work to increase tariffs on goods and services they export to partnering countries They could negotiate to have other countries sanction them for political reasons. They could negotiate an increase in non-tariff barriers on their exports. They could work to reduce tariffs on goods and services they export to partnering countries

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Identify the substituent: $CH_3$ $CH_3$ isopropyl isobutyl methyl ethyl

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QUESTION 3 Calculate the mass % carbon in Co$_2$(C$_2$O$_4$)$_3$ (MM = 382). Give answer to 3 significant figures.

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Given the system (M): $\begin{cases} x + 2y - z = 0 \ 2x + 4y - z = 0 \ -3x - 6y + z = 0 \end{cases}$ Using Gaussian elimination on (M), we get (M) has trivial solution only (M) has infinite solutions depending on one parameter only. (M) is inconsistent None of the mentioned

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Let $\mathbf{G} = e^{3t}\mathbf{i} + 3t^2 \cos(t^2 + 1)\mathbf{j} + 2te^{t^2}\mathbf{k}$ \\ Find the indefinite vector integral \\ $\int \mathbf{G}(t)dt = \text{_____}\mathbf{i} + \text{_____}\mathbf{j} + \text{_____}\mathbf{k} + \mathbf{C}$ \\ where $\mathbf{C} = C_1\mathbf{i} + C_2\mathbf{j} + C_3\mathbf{k}$ is a vector of arbitrary constants.

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jose miguel s.