The matrix is the final matrix form for a system of two linear equations in variables x1 and x2. Write the Solution of the system.
A. x1 = 3
x2 = 5
B. x1 = -5
x2 = -3
C. x1 = 5
x2 = t for any real number t
D. x1 = 5
x2 = 3
Answer: D
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If s represents the displacement and t represents the time for an object moving with rectilinear motion according to the given function, find the instantaneous velocity for the given time.s = 3t3 - 7t2 - 4t + 4; t = 4
A. 126 B. -24 C. 84 D. 18
Using a sum or difference identity, write the following as an expression involving functions of x.sin 
A. 
cos x + 
sin x
B. -cos x
C. 
cos x - 
sin x
D. sin x
Use the table to answer the question.
Is -3 an input or output of this function?
A. Input B. Output
Is it possible using only a straightedge and a compass, to reproduce a circle with a radius congruent to 
?
?
?
Answer yes or no.
What will be an ideal response?