Solve the problem.An electric circuit board has equally spaced parallel wires with connections at points A, B, and C, as shown in the figure. If 
what is the length of 
?
A. 1.89 cm
B. 3.30 cm
C. 4.13 cm
D. 4.40 cm
Answer: D
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The following question refers to a school district with three high schools. The total number of students in the district is 3000. The teachers within the district are apportioned to the high schools based on the schools' respective enrollments. The standard quota for each school is given in the following table.
How many students are enrolled in Central High?
A. 1500 B. 1450 C. 1550 D. 1400 E. none of these
Solve the problem.Suppose that f(x) = x2/3 - 3x1/3. Find the values of x such that f(x) = 10.
A. -5, 2 B. -2, 5 C. -125, 8 D. -8, 125
Determine whether the graph is the graph of a function.
A. function B. not a function
The rule of the derivative of a function f is given. Find the location of all points of inflection of the function f.f'(x) = (x + 2)2(x + 1)
A. 2, 0 B. -1 C. 1.67 D. 2, -1