Solve the combined inequality. Write the solution in interval notation.-6 < 5x + 4 ? 14
A. [-2, 2)
B. (-2, 2)
C. [-2, 2]
D. (-2, 2]
Answer: D
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Write the complex number in rectangular form.6(cos 330° + i sin 330°)
A. 3
- 3i
B. 3
+ 3i
C. -3
- 3i
D. -3
+ 3i
Solve the problem.A boat travels d miles against the current whose rate is 7 mph. On the return trip, the boat travels with the same current. The expression 
+ 
, where r is the speed of the boat in calm water, represents the total amount of time in hours it takes for the entire trip. Represent this amount of time as a single rational expression.
A. 
B. 
C. 
D. 
Find the center of mass of the given system of point masses.
10
? 4
? 8
? 3
?
?
?
?
A. 
, 
B. ?
, 
C. ?
, 
D. ?
, 
E. ?
, 
Solve the quadratic equation using the quadratic formula.x2 - 
x + 
= 0
A. 
B. {
- 
i, 
+ 
i}
C. {- 
- 
i , - 
+ 
i}
D. 