For the following pair of equations, predict whether they represent parallel lines, perpendicular lines, or lines that intersect but are not perpendicular.9.2x + 8.5y = 3.1 and 8.5x - 9.2y = 3.6
A. parallel lines
B. lines that intersect but are not perpendicular
C. perpendicular lines
Answer: C
Mathematics
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A certain tree grows by 2/t + e(-t2/2) feet per year, where t is the time in years. Use Simpson's rule with whole year intervals to estimate the total growth during the stated time interval.From t = 1 to t = 6
A. 5.307 ft B. 3.948 ft C. 6.036 ft D. 5.922 ft
Mathematics
Provide an appropriate response.Which of the following items is undefined and why?csc-1 
or cos-1 
What will be an ideal response?
Mathematics
Solve.
- 5 = 
A. -2
B. 2
C. No solution
D. - 
Mathematics
Solve the problem.If the area of a trapezoid is 12x2 + 20x + 7 square feet and the two parallel sides are x feet and 
then what polynomial represents the height of the trapezoid? 
A. 12x + 14 B. 6x + 7 C. 12x + 7 D. 12x
Mathematics