Solve the equation by factoring.(x - 2)2 = 4 + 10x
A. {0, 14}
B. {0, -14}
C. {0}
D. {14}
Answer: A
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Solve.A census was taken to determine the median annual income for residents of a selected region of the United States, by level of education. The given polynomial models describe the median annual income for men, M, and for women, W, who have completed x years of education. Shown in a rectangular coordinate system are the graphs of the polynomial models. Identify the median annual income for a woman with 10 years of education as a point on the appropriate graph.M = 224x2 - 1266x + 20,106W = 287x2 - 4030x + 33,761
A. (10, 22,161) B. (10, 41,240) C. (10, 58,431) D. (10, 29,846)
Place your graphing calculator in parametric and degree modes. Set the window for Tmin=0, Tmax=360, Tstep=1, Xmin= -1.8, Xmax=1.8, Xscl=1, Ymin= -1.2, Ymax=1.2, Yscl=1. Set the functions to X1T=cos T, Y1T=sin T. Graph the circle of radius 1 on the screen. Use the trace feature to move a short distance around the circle.For what angle T is cos T ? 0.866? (Assume 0° ? T ? 90°.)
A. 0.866° B. 28.65° C. 30° D. 60°
Solve the system of equations.9x2 + 4y2 = 362y + 3x = 6
A. (0, -3), (-2, 0) B. (0, 2), (3, 0) C. (0, 3), (2, 0) D. (0, -2), (0, -3)
Find the expected value for the random variable.For a certain animal species, the probability that a female will have a certain number of offspring in a given year is given in the table below. Find the expected number of offspring per year.
A. 1.38 B. 1.58 C. 2 D. 1.75