Solve the system. x - y + 4z = -23 x + 2y + z = 10.4x + 0.1z = -0.5
A. (3, 0, -5)
B. (-5, 3, 0)
C. (0, 3, -5)
D. (-5, 0, 3)
Answer: C
Mathematics
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Solve the problem.At time 
a particle is located at the point (1, 1, 1). It travels in a straight line to the point 
has speed 2 at (1, 1, 1) and constant acceleration 
Find an equation for the position vector r(t) of the particle at time t.
A. r(t) = 
i - 
j - 
k
B. r(t) = 
i - 
j - 
k
C. r(t) = 
i - 
j - 
k
D. r(t) = 
i - 
j - 
k
Mathematics
Find the greatest common divisor of the numbers.168, 42
A. 6 B. 21 C. 42 D. 14
Mathematics
Provide an appropriate response.What is the reciprocal of 4.3?
A. 
B. 
C. 
D. 
Mathematics
Perform the desired operation. Write the answer in the form a + bi.(-2 - 9i)(3 + i)
A. -15 - 29i B. -15 + 25i C. 3 + 25i D. 3 - 29i
Mathematics