Numerade

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A researcher wants to calculate the 98% confidence interval on the variable prior arrests. She draws a sample of 130 inmates who have a mean of 3.4 prior arrests and a standard deviation of 1.1 prior arrests. What is the value of t that she would use in the formula? What is the value of the standard error in the formula?

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There are 3 categories of healing therapies. Massage is a form of a administration of therapeutic devices application of physical force or devices magic-religious intervention

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Muscle cells must be able to compress. b oth contract and relax. contract. relax.

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What would happen if we used 100 as a seed value rather than the current time in the function?

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4. Consider a scenario where two countries have exact same GDP figures. Explain why it would be inappropriate to assume that the citizens in each country experience a similar level of economic well-being.

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A car starts at point A from rest and accelerates at a=3*s where a is in m/s$^2$ and s is in m. It then maintains a constant speed from B to C. Find: • The speed of the car at B • The time it takes for the car to get from B to C (BC is a 45 degree arc) • The magnitude of the acceleration at C (on the curve shown) $r = 10 m$ $27 m$ A

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The position of a particle is defined by r = \{4(t - \sin t)\hat{i} + (2t^2 - 3)\hat{j}\} m where $t$ is in seconds and the argument for the sine is in radians Determine the speed of the particle when $t = 1.1$ s Express your answer to three significant figures and include the appropriate units. Determine the normal component of acceleration when $t = 1.1$ s Express your answer to three significant figures and include the appropriate units. Determine the tangential component of acceleration when $t = 1.1$ s

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Researchers have postulated that significant changes in the amount of biomass on the continents and sea surface temperatures were major contributors to changes in atmospheric CO$_2$ concentrations in the last 10,000 years. Data collected from an ice dome in Antarctica were used to investigate this hypothesis (Table 11.2). Data were taken from the gas content of bubbles trapped in the ice at the time the ice formed (ages given). TABLE 11.2 CO$_2$ Concentrations Measured at Taylor Dome, Antarctica ICE DEPTH BELOW SURFACE (m) AGE (IN YEARS BEFORE PRESENT) CO$_2$ CONCENTRATION (ppm) 86 390 283 110 830 281 136 1319 284 161 1853 278 186 2453 279 207 3021 277 224 3533 276 242 4121 274 259 4757 273 277 5488 272 294 6273 266 311 7070 265 330 7883 260 347 9564 262 357 11103 265 Source: Indermuhle and others, 1999, Nature, v. 398. 7. Plot the data on a sheet of graph paper. Label each axis as before.

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Use Green's Theorem to evaluate the following line integral. Assume the curve is oriented counterclockwise The circulation line integral of F = $(3xy^2, 5x^3 + y)$ where C is the boundary of $\{(x,y): 0 \le y \le \sin x, 0 \le x \le \pi\}$ $\oint_C \mathbf{F} \cdot d\mathbf{r} = $ (Type an exact answer, using $\pi$ as needed.)

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Problem 4 (15 points) Determine the location $(x, y)$ of the centroid of the shaded area. Determine the moment of inertia of the shaded area about the x-axis and the y-axis. The centers of three 0.06 m diameter holes lie along the line connecting the origin and the intersection of the two curves $(x = 0.09, 0.18,\text{ and } 0.27\text{ m})$.

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alejandro h.