Solve the system of equations by determinants.0.7x + 0.5y = -4.5 x - 0.7y = -3.6
A. x = -2, y = -5
B. x = -5, y = -2
C. x = -0.5, y = -0.2
D. Inconsistent
Answer: B
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Evaluate the expression using the order of operations.(8 + 4)2
A. 68 B. 144 C. 80 D. 24
Find all values of x in the interval [0°, 360°) that satisfy the equation. Round approximate answers to the nearest tenth of a degree.sin2 x + 8 sin x - 4 = 0
A. {208.2°, 331.8°} B. {28.2°, 151.8°} C. No solution D. {28.2°, 151.8°, 208.2°, 331.8°}
Form a valid conclusion, using all the statements for each argument. Give reasons. ? If we win third prize, we will go to the Europe. If we are ingenious, we will win third prize. We are ingenious.
A. We won't win third prize. (direct ) B. We won't go to Europe. (indirect) C. We will go to Europe. (transitive and direct ) D. We will go to Europe. (indirect ) E. none of these
Divide.
A. 5x4 - 
x3 + 
B. 10x4 - 7x + 9x2
C. 10x4 - 7x3 + 9
D. 10x2 - 7x + 9