Write the expression in the standard form a + bi.i4
A. -1
B. -i
C. 1
D. i
Answer: C
Mathematics
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Represent the following with a graph.
A. 
B. 
C. 
D. 
Mathematics
Find the magnitude and direction angle of the vector v. Round the direction angle to the nearest tenth of a degree when necessary.v = 5(cos 101°i + sin 101°j)
A. 25, 79°
B. 5, 101°
C. 5, 79°
D. 
, 101°
Mathematics
Solve.A particular substance decays in such a way that it loses half its weight each day. How much of the substance is left after 9 days if it starts out at 128 grams?
A. 4 grams
B. 
gram
C. 
gram
D. 2 grams
Mathematics
Round the number to four significant digits.0.000819166
A. 0.0008192 B. 0.0008202 C. 0.0008292 D. 0.0008 E. 0.0009
Mathematics