Complete the identity. - 1 = ?

A. 0
B. 1 - sin ?
C. 1
D. -sec2 ?


Answer: A

Mathematics

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Find the second derivative.y =  - 9

A. 19x
B. x2
C. x
D. 19x - 9

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Determine whether the collection is well-defined.The collection of people who wear expensive clothes.

A. Not well-defined B. Well-defined

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Solve the equation. Round the solution to the nearest tenth.0.814s = -4.257s + 4.94s - 5.917

A. 6 B. -45.2 C. -0.8 D. 0

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Find the amount of each payment needed to accumulate the indicated amount in a sinking fund. Round to the nearest cent.$9,100, money earns 8% compounded semiannually, 5 years

A. $1,551.19 B. $859.86 C. $757.94 D. $1,680.13

Mathematics