Find the indicated value.Find n if log n = 19, where n is the number of sodium ions in a typical mammalian muscle cell.
A. n = e19
B. n = 190
C. n = 1019
D. n = 10-19
Answer: C
Mathematics
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Solve the system of equations graphically. If the system does not have a single ordered pair as a solution, state whether the system is inconsistent of dependent. 4x + y = -11 5x - 4y = -40
A. (-2, -3)
B. (-4, -5)
C. (-4, 5)
D. (4, 5)
Mathematics
Use the formula for 
to solve.How many ways can a committee of 3 be selected from a club with 12 members?
A. 110 B. 220 C. 6 D. 1320
Mathematics
The line graph shows the recorded hourly temperatures in degrees Fahrenheit at an airport. 
What temperature was recorded at 1 p.m.?
A. 77 ° F B. 79 ° F C. 80 ° F D. 81 ° F
Mathematics
Find the torsion of the space curve.r(t) = (t - 10)i + (ln(cos t) - 6)j + 6k, -?/2 < t < ?/2
A. ? = -1 B. Undefined C. ? = 1 D. ? = 0
Mathematics