Numerade

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What is the length of $\overline{AB}$ in the accompanying figure? The length of $\overline{AB}$ is (Type an exact answer, using radicals as needed.) 34ft 20ft 16ft B

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Which of the following aspects was generally found to have the greatest impact on mussel and urchin performance (growth and other physical measures) at intertidal sites along the West Coast? (choose the best answer) Group of answer choices Temperature Food supply pH

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If the stock is purchased at the beginning of the year a single dividend is paid at the end of the year and the stock is sold immediately after the dividend has been received in this case what happened

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(a) Explain why an unexpected rise in prices in the face of sticky wages can explain an upward sloping short run aggregate supply curve. [5]

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Consider the function $z = x^7y + 49x^6 - 823543y$. Find and classify all critical points of the function. If there are more blanks than critical points, leave the remaining entries blank. The critical point with the smallest $x$-coordinate is ( , ) Classification: (local minimum, local maximum, saddle point, cannot be determined) The critical point with the next smallest $x$-coordinate is ( , ) Classification: (local minimum, local maximum, saddle point, cannot be determined) The critical point with the next smallest $x$-coordinate is ( , ) Classification: (local minimum, local maximum, saddle point, cannot be determined)

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Problem #2: (30 Points) Determine the velocity of the slider block C at the instant $\theta = 60^\circ$, if link AB rotates at 4 rad/s. Use Cartesian unit vector approach only. [Hint: Use a local x,y coordinate at Point B with downward direction as positive and direction to the left as negative]; $v = \omega r$ $\vec{v_c} = \vec{v_A} + \left[\vec{\omega_{AB}} \times \vec{r_{C/A}}\right]$ $= 0 + 4k \left(0.3cos60^\circ i + 0.3sin60^\circ j\right)$ $= 4k \left(0.15i + 0.2598j\right)$ $= 0.6j - 1.0392i$ $\vec{v_c} = \vec{v_B} + \left[\vec{\omega_{BC}} \times \vec{r_{C/B}}\right]$

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5. Suppose relation S(A,B,C) has the tuples: ABC 123 123 231 312 223 233 Using bag projection and intersection, compute $\pi_{A,B}(S) \cap \rho_{R(A,B)}(\pi_{B,C}(S))$. (You must show the steps of your work

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1 Component of a Signal Approximate $y(t)$ in terms of $x(t)$, $y(t) approx cx(t)$, for $0 < t < 1$. (a) Find $c$ that minimizes the energy of the error signal $e(t) = y(t) - cx(t)$, for $0 < t < 1$. (b) Find the energy of the error $e(t)$, for $0 < t < 1$. Figure 1. Square pulse $y(t)$ and half-cycle sinusoidal pulse $x(t)$.

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Text: Three Phase Transformer Connections The primary and secondary of any three-phase transformer can be independently connected in either a wye (Y) or a delta (âˆ†) connection. This gives a total of four possible connections for a three-phase transformer. 1. Wye-Wye (Y-Y) 2. Wye-Delta (Y-âˆ†) 3. Delta-Delta (âˆ†-âˆ†) 4. Delta-Wye (âˆ†-Y) In this report, you are required to examine in detail these connections. Your explanations must include the following topics: 1. Wiring diagram of each connection 2. Relationship between phase voltages and line voltages of each connection 3. Advantages & disadvantages of each connection 4. The transmission working voltages that are typically used and why 5. The advantages of using Three-Phase A.C. Distribution. The report should be written as follows: 1. Size 12 font with fully justified margins 2. Introduction 3. Main Research (see above) 4. Summary 5. References

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x²+y²-6x-10y-2=0 410. What is the length of radius? A. \sqrt{30} C. \sqrt{64} B. \sqrt{34} D. \sqrt{86}

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elena j.