Use the discriminant to determine whether the equation has two rational solutions, one rational solution, two irrational solutions, or two nonreal complex solutions. Do not actually solve.v2 + 3v - 3 = 0
A. Two rational solutions
B. Two irrational solutions
C. Two nonreal complex solutions
D. One rational solution
Answer: B
Mathematics
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The position vector of a particle is r(t). Find the requested vector.The velocity at t = 4 for r(t) = (10 - 3t2)i + (6t + 9)j - e-4tk
A. v(4) = -24i + 6j + 4e-16k B. v(4) = -12i +6j + 4e-16k C. v(4) = -24i + 6j - 4e-16k D. v(4) = 24i + 6j + 4e-16k
Mathematics
Solve the problem using the information given in the table and the gross profit inventory method. Round to the nearest cent.Find the estimated cost of goods sold if a 30% gross profit is realized on sales and net sales are $450. 
A. $135.00 B. $225.00 C. $315.00 D. $180.00
Mathematics
Simplify.
A. 
B. 
C. 
D. 
Mathematics
Determine whether the relation is a function.
A. A function B. Not a function
Mathematics