Solve.On a map of Nature's Wonder Hiking Trails, 1 centimeter corresponds to 5 miles. Find the length of a trail represented by a line that is 9
centimeters long on the map.
A. 484
mi
B. 
mi
C. 47
mi
D. 1
mi
Answer: C
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Find the common ratio for the geometric sequence.4, -4, 4, -4, 4
A. 1 B. 4 C. -1 D. -4
Determine the discriminant of the quadratic equation. Use the value of the discriminant to determine whether the quadratic equation has two rational solutions, two irrational solutions, one repeated real solution, or two complex solutions that are not real.x2 - 7x - 8 = 0
A. Two complex solutions that are not real B. One repeated real solution C. Two rational solutions D. Two irrational solutions
Determine which value(s), if any, must be excluded from the domain of the variable in the expression.
A. x = -8 B. x = 0 C. x = 8 D. none
Identify whether the equation is a linear equation in two variables. Answer "is" or "is not."y = 8x2
A. is B. is not