Choose the most appropriate method for solving the system of equations. Do not solve. x + y = 40605x + 2y = 8290
A. Substitution
B. Addition
Answer: A
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Solve the problem.According to a country's census, the population (to the nearest million) was 264 in Year 0 and 288 in Year 10. The projected population for Year 50 is 434. To construct a logistic model, both the growth and carrying capacity must be estimated. (a) Estimate r by assuming that t = 0 corresponds to Year 0 and that the population between Year 0 and Year 10 is exponential; that is, the population is given by 
Round the value of r to four decimal places, if necessary.(b) Write the solution to the logistic equation using the estimated value of r and use the projected value P(50) = 434 million to find an estimation for the value of the carrying capacity K. Round to
the nearest million. A. (a) r = -1.0087 (b) K = 254 million B. (a) r = 0.0087 (b) K = -2390 million C. (a) r = 1.0087 (b) K = -2290 million D. (a) r = -0.0087 (b) K = 154 million
Use the graph of a known basic function and a combination of horizontal shifts, reflections, and vertical shifts to sketch the function.h(x) = (2 - x)3
A. 
B. 
C. 
D. 
Find the eccentricity of the conic.
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Solve the problem.A store advertised a sale on shirts, offering 2 shirts for $39.78. At this rate, what would 6 shirts cost?
A. $99.45 B. $119.34 C. $139.23 D. $39.78