Solve the problem.If tan ? = 1.4, find the value of tan ? + tan (? + ?) + tan (? + 2?).
A. 4.2
B. 6.2
C. 4.2 + 3?
D. undefined
Answer: A
Mathematics
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Solve the problem.The cross section of a large telescope having a diameter of 280 feet and a maximum depth of 30 feet is depicted below.
What is the equation of this parabola?
A. y = 
x2
B. Not enough information
C. y = 
x2
D. y = 
x2
Mathematics
A state map has county lines as shown. If the counties are to be colored and no two counties which share a border can have the same color, what is the minimum number of colors required for this map? Explain your solution.
Mathematics
Use the leading coefficient test to determine whether y?? or y?-? as
y = 3x7 + 5x2 - 6
A. ? B. -?
Mathematics
Determine whether the graph represents a function.
A. Yes B. No
Mathematics