Express the given vector as a linear combination of the unit vectors i and j.
A. -3i + 
j
B. 5i + 9j
C. 
i + 3j
D. 
i - 3j
Answer: D
Mathematics
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Round the decimal to the indicated place value.1.91472
ten-thousandth
A. 1.916 B. 1.9147 C. 1.915 D. 1.914
Mathematics
Solve the problem.If f varies jointly as q2 and h, and f = 64 when q = 4 and h = 2, find q when f = 108 and h = 6.
A. q = 4 B. q = 2 C. q = 3 D. q = 6
Mathematics
Write the expression in the standard form a + bi.
4
A. - 
+ 
i
B. - 
- 
i
C. - 
- 
i
D. - 
+ 
i
Mathematics
Approximately how long will it take an investment of $900 to triple, if the interest rate is 3.75% per year compounded continuously?
(a) 4.5 years (b) 21 years (c) 2.9 years (d) 29 years (e) 9 years
Mathematics