Given the quadratic equation, 
, describe the solutions.
A. one rational solution
B. two rational solutions
C. two irrational solutions
D. two non-real solutions
E. none of these
Answer: D
Mathematics
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The position vector of a particle is r(t). Find the requested vector.The acceleration at t = 1 for r(t) = t5i + 5ln
j + 
k
A. a(1) = 20i - 5j - 2k
B. a(1) = 20i + 
j + 2k
C. a(1) = 20i + 
j - 2k
D. a(1) = 20i + 5j + 2k
Mathematics
Solve. 15 + 2y = y2
A. 5, 3 B. -3, -5 C. 5, -3 D. 3, -5
Mathematics
What integer is represented by the curved arrow on the number-line diagram?
A. -6 B. -8 C. -7 D. 7
Mathematics
Use the partial sum formula to find the partial sum of the given arithmetic sequence.Find 2 + 4 + 6 + 8 + . . ., the sum of the first 65 positive even integers.
A. 4294 B. 4224 C. 4290 D. 4220
Mathematics