Use elimination by substitution to find the solution for the following system.
A. x = 0, y = 1
B. x = 1, y = 6
C. x = -6, y = 1
D. x = 6, y = 1
Answer: D
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Solve the problem.At time t = 0, a particle is located at the point (5, 8, 9). It travels in a straight line to the point 
has speed 10 at 
and constant acceleration 
Find an equation for the position vector r(t) of the particle at time t.
A. r(t) = 
(5i + 8j + 9k) + 4i + 3j + 12k
B. r(t) = 
(4i + 3j + 12k) + 5i + 8j + 9k
C. r(t) = 
(4i + 3j + 12k) + 5i + 8j + 9k
D. r(t) = 
(4i + 3j + 12k) + 5i + 8j + 9k
Arrange in order from smallest to largest.5.13, 4.69, 4.96, 5.31
A. 5.31, 5.13, 4.96, 4.69 B. 4.96, 4.69, 5.31, 5.13 C. 4.69, 4.96, 5.13, 5.31 D. 4.69, 5.13, 4.96, 5.31
Find the exact value under the given conditions.sin ? = - 
, 
< ? < 2?; cos ? = - 
, ? < ? < 
Find sin (? - ?).
A. 
B. 
C. 
D. 
Simplify the rational expression.
A. 
B. 
C. 
D. 