Find the solution to the system of equations. Round the answer to five decimal places.x -2y - 4z = -12.86296-x + 2y + z = 5.600413x +y - z = 4.89717
A. x = 0.61634, y = 2.60851, z = 2.42085
B. x = 1.63664, y = 2.4081, z = 2.42085
C. x = 0.61634, y = 2.4081, z = 2.11065
D. x = 1.63664, y = 2.60851, z = 2.11065
Answer: B
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Consider only the discriminant, b2 - 4ac, to determine whether one real-number solution, two different real-number solutions, or two different imaginary-number solutions exist.x2 + 5x + 1 = 0
A. One real solution B. Two different real-number solutions C. Two different imaginary-number solutions
Find the second derivative.y = 
- 7
A. 
x2
B. 
x
C. 17x
D. 17x - 7
A function f(x) and the numbers L, x0, and ? > 0 are given. Find the greatest value for src="https://sciemce.com/media/4/ppg__tttt0613191435__f1q172g6.jpg" style="vertical-align: -4.0px;" />,
such that for all x satisfying 
the inequality 
holds.f(x) = 
,
L = 
x0 = 7,
? = 1
A. 16
B. 5
C. 4
D. 7
Provide an appropriate response.Using the law of sines, find b if c = 157, B = 50°, and C = 70° in triangle ABC. Round to four significant digits.
A. 192.6 B. 219.8 C. 112.1 D. 128.0