Write the number in scientific notation.0.000077311

A. 7.7311 × 105
B. 7.7311 × 104
C. 7.7311 × 10-5
D. 7.7311 × 10-4


Answer: C

Mathematics

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Factor and simplify the expression.1 - 2 sin2x + sin4x

A. (1 + tan2x) B. cos4x C. (1 - sin2x) D. sin2x

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Solve. - 6 =  + 4

A. 120
B.
C. - 
D. - 120

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The two triangles below are similar. Find the missing length.

A. x = 18 B. x = 24 C. x = 6 D. x = 20

Mathematics

Find the standard quota asked for. Round your answer to two decimal places if necessary.A school district receives a grant to purchase 39 new computers to be apportioned among the 6 schools in the district based on the student population of each school. The student populations are given in the following table.Find the standard quota for school A.

A. 10.26 B. 9.84 C. 7.8 D. 9.02

Mathematics