Solve the problem.Suppose the function T(t) = 4.6t - 2.8 determines the actual time that has elapsed, in minutes, for t minutes of a person's estimate of the elapsed time. Find the actual time that has elapsed for an estimate of t = 30 minutes.
A. 135.2 min
B. 140.8 min
C. 42.88 min
D. 17.12 min
Answer: A
Mathematics
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Subtract.(10x2 + 8) - (-x3 + 7x2 - 9)
A. 11x3 + 15x2 + 9 B. x3 + 17x2 - 1 C. 11x3 + 7x2 + 17 D. x3 + 3x2 + 17
Mathematics
Find the flux of the curl of field F through the shell S.F = (z - y)i + (x - z)j + (z - x)k; S: r(r,? ) = r cos?i + r sin?j + (25 - r2)k, 0 ? r ? 5 and 
A. -50? B. 100? C. -100? D. 50?
Mathematics
Simplify the expression.
A. 14
B. 
C. 
D. 5
Mathematics
Fill in the blank with one of the words or phrases listed below.
A symbol used to represent a number is called a(n) 
.
A. base B. numerator C. denominator D. variable
Mathematics