Write the power of i as i, -1, -i, or 1.i14
A. -1
B. -i
C. 1
D. i
Answer: A
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Solve the initial value problem.Differential Equation: 
= (9t2 - 9)i - j + 
kInitial Condition: r(0) = -4i + 7j + 6k
A. r(t) = (3t3 - 9t - 4)i + (7 - t)j + (
- 4)k
B. r(t) = (3t3 + 9t + 4)i + (7 + t)j + (
+ 4)k
C. r(t) = (3t3 - 9t - 4)i + (7 - t)j + (2
+ 4)k
D. r(t) = (9t3 - 9t - 4)i + (7 - t)j + (
+ 4)k
Add the real numbers. Write any improper fraction as a whole or mixed number where appropriate.-22 + (-22)
A. -44 B. -22 C. 44 D. 0
Write the augmented matrix associated with the system.
A. 
B. 
C. 
D. 
Solve the problem.A job pays a salary of 25,000 the first year. During the next 11 years, the salary increases by 6% each year. What is the salary for the 12th year? What is the total salary over the 12-year period? (Round to the nearest cent.)
A. $50,304.91; $472,053.44 B. $47,457.46; $421,748.53 C. $50,304.91; $374,307.73 D. $47,457.46; $374,291.07