Solve the equation on the interval 0 ? ? < 2?.2 cos ? + 1 = 0
A. 
B. 
C. 
D. 
Answer: C
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Use the earthquake magnitude scale to answer the question.How many times as much energy is released by an earthquake of magnitude 4 as by one of magnitude 2?
A. 106 times as much energy B. 104 times as much energy C. 102 times as much energy D. 103 times as much energy
The tension T at each end of the chain has magnitude 27 N and makes an angle ?a=27 °with the horizontal. What is the weight of the chain? Round the result to the nearest hundredth.
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Find the degree and leading coefficient of the polynomial.-10 + 12x4 + 9x + 16x3 - 4x2
A. Degree: 4; leading coefficient: -10 B. Degree: -10; leading coefficient: 12 C. Degree: 3; leading coefficient: 16 D. Degree: 4; leading coefficient: 12
Decide whether the slope is positive, negative, zero, or undefined.
A. Positive B. Undefined C. Zero D. Negative