The birthrates in the country for the years 1981-1990 are:
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State the value of the discriminant and the number of real solutions.5x2 - 20 = 0
A. 400, one B. 400, two C. 0, one D. -400, two
Solve.The sum of two numbers is 16 and the sum of their squares is 136. Find the numbers.
A. 9 and 7 B. 12 and 4 C. 10 and 6 D. 11 and 5
Find the vertex of the parabola.y = 2x2 - 8x + 7
A. (-1, 2) B. (2, -1) C. (1, -2) D. (-2, 1)
Determine whether the graph is that of a function. If it is, use the graph to find its domain and range, the intercepts, if any, and any symmetry with respect to the x-axis, the y-axis, or the origin.
A. function domain: {x|x > 0} range: all real numbers intercept: (1, 0) symmetry: none B. function domain: all real numbers range: {y|y > 0} intercept: (1, 0) symmetry: none C. function domain: {x|x > 0} range: all real numbers intercept: (0, 1) symmetry: origin D. not a function