Complete the identity.sec4 ? - 2 sec2 ? tan2 ? + tan4 ? = ?
A. sec2 ? (1 + tan2 ?)
B. 1
C. 2
D. sec2 ? + tan2 ?
Answer: B
Mathematics
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Divide and write answer in lowest terms.2
÷ 1
A. 2
B. 2
C. 3
D. 2
Mathematics
Provide an appropriate response.Change 16% to both fractional and decimal equivalents.
A. 
; 0.16
B. 
; 0.16
C. 
; 1.6
D. 
; 0.016
Mathematics
Collect like terms.2x2y - 2z2y + 7x2y + 6z2y
A. 13x2y B. 9x2y + 4z2y C. 4x2y + 9z2y D. 13z2y
Mathematics
The following table contains information about moons orbiting a planet named Geo I. Use the table to solve the problem.
What is the average time of revolution of the moons? Round your answer to the nearest hundredth of a year.
A. 21.84 years B. 953.60 years C. 1.54 years D. 2.72 years
Mathematics