Write a quadratic equation in standard form with the given solution set.{-7i, 7i}
A. x2 + 49 = 0
B. x2 - 49 = 0
C. x2 - 14x - 49 = 0
D. x2 + 14x + 49 = 0
Answer: A
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A.
B.
C.
D.
Solve the problem.Sam and Chad are ticket-sellers at their class play. Sam is selling student tickets for $2.00 each, and Chad selling adult tickets for $5.50 each. If their total income for 24 tickets was $83.00, how many tickets did Sam sell?
A. 10 tickets B. 15 tickets C. 14 tickets D. 16 tickets
Write the augmented matrix for the system.
A.
B.
C.
D.
Solve the problem.An aircraft going from Atlanta to Savannah on a heading of N 103° E is traveling at a speed of 650 miles per hour. The wind is out of the north at a speed of 21 miles per hour. Find the actual speed and direction of the aircraft.
A. 646 miles per hour; 105° from north B. 648 miles per hour; 105° from north C. 655 miles per hour; 105° from north D. 916 miles per hour; 104° from north