Perform the indicated operations. Simplify, if possible.
+ 
- 
A. 
B. 
C. 
D. 
Answer: C
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Find the standard deviation.11, 17, 11, 12, 22, 11, 19, 23, 24, 19
A. 16.9 B. 18 C. 25.1 D. 5
Subtract.-10 - 15
A. -5 B. -25 C. 5 D. 25
Use a graphing utility to solve the system of equations. Express the solution rounded to two decimal places.
A. x = 1.81, y = 0.28; x = 0.20, y = 2.45; x = -0.20, y = -2.45 or (1.81, 0.28), (0.20, 2.45), (-0.20, -2.45) B. x = 1.99, y = 0.13; x = 1.04, y = 1.70; x = -0.91, y = 2.95 or (1.99, 0.13), (1.04, 1.70), (-0.91, 2.95) C. No real solution exists. D. x = 1.18, y = 1.03; x = 1.07, y = 1.52; x = -0.91, y = 2.88 or (1.18, 1.03), (1.07, 1.52), (-0.91,2.88)
The given measurements may or may not determine a triangle. If not, then state that no triangle is formed. If a triangle is formed, then use the Law of Sines to solve the triangle, if it is possible, or state that the Law of Sines cannot be used.C = 37°, a = 19, c = 8
A. No triangle is formed.
B. The triangle cannot be solved with the Law of Sines.
C. A = 52.4°, B = 90.6°, 
D. A = 90.6°, B = 52.4°, 