Simplify the expression using the order of operations.92 + 8 ? 6 - (10 + 5 ? 2)

A. 99
B. 109
C. 129
D. 514

Answer: B

Mathematics

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Find the derivative of the function.r = (sec ? + tan ?)-2

A. -2(sec ? + tan ?)-3
B.
C. -2(sec ? tan ? + sec2?)-3
D. -2(sec ? + tan ?)-3(tan2 ? + sec ? tan ?)

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Mathematics

Solve the formula for the specified variable.P = a + b + c for a

A. a = b + c - P B. a = P + b + c C. a = b + P - c D. a = P - b - c

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Mathematics

Solve the problem.Of the 481 students at Jorge's school, 259 are native English speakers. What fraction of the students at Jorge's school are native English speakers? Write your answer in lowest terms.

A.
B.
C.
D.

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Mathematics

Solve.x - y + z = 63y + z = 15 z = 9

A. {(-1 , -2, 9)} B. {(0 , -3, 9)} C. {(-1 , 2, 9)} D. {(0 , 3, 9)}

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Mathematics