Solve the formula for the given variable.I = 
for n
A. n = IR(Ir - E)
B. n = 
C. n = 
D. n = 
Answer: C
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Solve the problem.The dimensions of a cardboard box were measured as 30 cm, 90 cm and 40 cm, with the percentage error in each dimension not exceeding 6 percent. Approximate the worst possible percentage error in the volume of the box. Assume that the cardboard is of negligible thickness.
A. 13% B. 18% C. 6% D. 12%
Construct a histogram of the given frequency distribution.The frequency distribution indicates the height in feet of persons in a group of 540 people. 
A. 
B. 
C. 
D. 
Find the common ratio for the geometric sequence.20, 10, 5, 2.5, 1.25, . . .
A. 0.5 B. -0.5 C. 1.25 D. 2
Determine whether the system is consistent. 5x2 + x4 = -11 x1 + x2 + 6x3 - x4 = 155x1 + x3 + 6x4 = 16 x1 + x2 + 3x3 = 8
A. No B. Yes