Solve the inequality.x2 - 3x - 28 ? 0
A. x ? -4
B. x ? 7
C. x ? -4 or x ? 7
D. -4 ? x ? 7
Answer: D
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Provide an appropriate response.Given h(r, s, t, u) = 
, find h(2, 3, 2, 15).
Fill in the blank(s) with the appropriate word(s).
For an election with 4 candidates (A, B, C, and D) we have the following preference schedule:
Using the plurality-with-elimination method, the winner of the election is
A. A. B. B. C. C. D. D. E. none of these
Solve the problem. Express the answer in scientific notation to two decimals unless requested otherwise.A light-year is the distance that light travels in one year. Find the number of miles in a light-year if light travels 1.86 × 105 miles/second. (Round to one decimal place.)
A. 6.0 × 107 miles B. 6.0 × 1012 miles C. 6.0 × 1014 miles D. 6.0 × 105 miles
Find the unit tangent vector 
for the line tangent to the space curve 
at point 
varid="variable_id_field" variablename="impvar_ba378e8612564d6ab082db34c" />.
?
A. 
B. ?
C. ?
D. ?
E. ?