Solve.A coil of wire rotating in a magnetic field induces a voltage given by 
where t is time in seconds. Find the smallest positive time to produce a voltage of 10
.
A. 2.8? sec
B. 3? sec
C. 3 sec
D. 2.8 sec
Answer: C
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What will be an ideal response?
Solve the problem.Nancy earns $12.25 per hour. One week she worked 39.75 hours. Find her gross pay for the week.
A. $486.95 B. $487.04 C. $486.94 D. $486.84
Completely factor the polynomial or state that the polynomial is prime.4x2 - 14x - 8
A. 2(2x + 1)(x - 4) B. prime C. 2(2x - 1)(x + 4) D. (4x - 2)(x + 4)
Solve the problem.Ron and Kathy are ticket-sellers at their class play, Ron handling student tickets that sell for $1.00 each and Kathy selling adult tickets for $6.50 each. If their total income for 24 tickets was $112.00, how many did Ron sell?
A. 21 tickets B. 16 tickets C. 10 tickets D. 8 tickets