Solve the system of equations.0.2x + 0.3y + 0.1z = -0.70.2x + 0.4y + 0.2z = -10.8x - 0.4y + 0.2z = -3.6
A. (-3, 1, -4)
B. (-0.4, 0, -4)
C. (-0.6, 0, -3)
D. (-0.4, 1, -3)
Answer: A
Mathematics
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A. converges; 
B. converges; 2
C. diverges
D. converges; 
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Use a calculator to verify the value found by using the double-angle formulas.Find cos 150° directly and by using functions of 75°.
A. 0.2588 B. 0.5176 C. 0.6993 D. -0.866
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Use a positive rational exponent to write the expression.
A. x-5/2 B. x-2/5 C. -x2/5 D. x5/2
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In the parallel circuit below, IR = 26 mA and IL = 21 mA. Find IT.
a. 26 + j21
b. 21 + j26
c. 26 + j5
d. 21 + j5
e. 47 + j47
Mathematics