Determine whether the statement is true or false.cos 135° = cos 225° cos 90° + sin 225° sin 90°
A. True
B. False
Answer: A
Mathematics
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Find the area of the figure using determinants.
A. 12.5 B. 11.5 C. 11.0 D. 12.0
Mathematics
Solve the equation.
= -5
A. {5, -5} B. {-5} C. {5} D. no real solution
Mathematics
Find a system of inequalities with the given graph.
A. y > 2 x ? 1 B. y < 2 x ? 1 C. y > 2 x ? 1 D. y > 1 x ? 2
Mathematics
Solve.4(y + 5) = 5(y - 5)
A. 5 B. 45 C. -5 D. -45
Mathematics