Solve the equation by the method of your choice. Simplify irrational solutions, if possible.
- 
r + 
= 0
A. {-2, 2}
B. 0
C. {-2}
D. {2}
Answer: D
Mathematics
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An observer for a radar station is located at the origin of a coordinate system. For the point given, find the bearing of an airplane located at that point. Express the bearing using both methods.(-8, -8)
A. 225°; S 45° E B. 225°; S 45° W C. 315°; N 45° W D. 315°; N 45° E
Mathematics
Convert each of the following angle measure to degrees and minutes. Round to the nearest minute if necessary.
(a) 43.7° (b) 113.67° (c) 56.4° (d) 29.11°
Mathematics
Write the phrase as a mathematical expression. Use x as the variable.The sum of a number and 15
A. 15x
B. x + 15
C. 
D. x - 15
Mathematics
Combine like terms whenever possible.14x7 - 10x7 + 11x5 + 3x7 - 3x5
A. 15x12 B. 7x7 + 8x5 C. 15x7 D. Not possible
Mathematics