Solve the problem.In one area, the lowest angle of elevation of the sun in winter is 21° 7'. A fence is to be built 
away from a plant in the direction of the sun. (See drawing) Find the maximum height, x , for the fence so that the plant will get full sun. Round your answer to the tenths place when necessary.
A. 5.1 ft
B. 4.1 ft
C. 4.8 ft
D. 6.3 ft
Answer: C
Mathematics
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Use the given information to determine whether the sets are equal. U = {1, 2, 3, 4, 5, 6, 7, 8} A = {1, 3, 5, 7} B = {2, 3, 4, 5, 6}(A ? B)', (A' ? B')'
A. Not equal B. Equal
Mathematics
Simplify.81 ÷ 3 + {6 ? [18 - (2 ? 2)]}
A. 101 B. 114 C. 106 D. 111
Mathematics
Provide an appropriate response.Find the value(s) of x for which f(x) = 
is discontinuous.
Fill in the blank(s) with the appropriate word(s).
Mathematics
Provide an appropriate response.Determine whether each statement below is true or false. If either statement is false, provide a counterexample.- If two vectors are perpendicular, then their dot product must be zero.- If two vectors are orthogonal, then they must also be perpendicular.
What will be an ideal response?
Mathematics