Complete the identity.cos (
- x) = ?
A. -sin x
B. cos x
C. sin x
D. -cos x
Answer: A
Mathematics
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Convert the given unit of measure to the measure shown.321 grams to kilograms
A. 32,100 kilograms B. 0.0321 kilogram C. 321,000 kilograms D. 0.321 kilogram
Mathematics
Provide an appropriate response.Write the product: x2(y4)
A. x6
B. x2y4
C. 
6
D. y6
Mathematics
Provide an appropriate response.Evaluate and express to the nearest ten-thousandth: log 40
A. 0 B. 2.3539 C. 1.6021 D. 3.6889
Mathematics
Answer the question.What is the angle between the hour and the minute hands if the time is 7:30?
A. 45° B. 390° C. 30° D. 72°
Mathematics