Classify each angle as acute, right, obtuse, or straight.
A. Obtuse
B. Right
C. Acute
D. Straight
Answer: D
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Write the statement as a power function equation. Use k as the constant of variation.The surface area of a sphere S varies directly as the square of its radius r.
A. S = k2r
B. S = 
C. S = 
D. S = kr2
Solve the equation. State whether the equation is a contradiction, an identity, or a conditional equation.-4(x - 2) - 55 = 5x - 9(x + 3)
A. {-82}; conditional equation B. ? or { }; contradiction C. all real numbers; identity D. {-28}; conditional equation
Determine whether the equation is an identity. If it is an identity, prove it.cot2 x = (csc x - 1)(csc x + 1)
What will be an ideal response?
Find the product. Write the product in rectangular form, using exact values.[4 cis 45°] [6 cis 225°]
A. 24 B. -24 C. 24i D. -24i