Use a graphing calculator and the method of matrix inverses to solve the system. Give 5 decimal places.?x + ey + 
z = 2ex + ?y + 
z = 4
x + ey + ?z = 6
A. {(-2.71828, 3.14159, 1.41421)}
B. {(-2.01284, 2.71182, 0.67317)}
C. {(1.41421, 2.82843, 3.46410)}
D. {(-4.12755, 4.84931, -0.01039)}
Answer: B
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Graph the function defined by a radical expression. Give the domain and range.
= 
A. Domain: [8, ?);
Range: (-?, ?)
B. Domain: (-?, ?);
Range: [8, ?)
C. Domain: (-?, ?);
Range: [-8, -?)
D. Domain: [-3, 3];
Range: [0, 8]
Simplify by writing the expression with positive exponents. Assume that all variables represent nonzero real numbers.
A. 
B. p-9
C. p-5
D. p9
Decide whether the integral converges. If the integral converges, compute its value.
?
?
A. 
B. 
C. 0
D. 
E. diverges
If possible, factor the polynomial completely. If a polynomial cannot be factored, state that it is prime.4a2 - 9
A. Prime B. (2a + 3)2 C. (2a - 3)2 D. (2a + 3)(2a - 3)