Solve the quadratic inequality symbolically. Write your answer in interval notation.x2 - 9x + 18 ? 0
A. (-?, 3]
B. (-?, 3] ? [6, ?)
C. [6, ?)
D. [3, 6]
Answer: B
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Decide whether vertex A of the network is even or odd.
A. Odd B. Even
Write the numeral as a Roman numeral.65
A. LXVII B. LXI C. LXXI D. LXV
Solve the problem.The graph shows the hours studied and the exam grades obtained on a finite math exam for 8 students. (The two points on the line do not represent any of the eight students.) The line of best fit, the line graphed on the coordinate system, can be used to approximate the test grade the average student receives for the number of hours they study. 
Find the equation of the line of best fit.
A. G = 
x - 50
B. G = 
x + 8
C. G = 
x + 50
D. G = 
x + 50
Find the flux of the curl of field F through the shell S.F = (4y + 1)i - 2xj + (ez - 4)k; S: r(r, ?) = 2 sin ? cos ?i + 2 sin ? sin ?j + 2 cos ?k, 0 ? ? ? 2? and 0 ? ? ? 
A. -24? B. 48 C. -48? D. 24?