Solve the inequality. Write the solution set in interval notation.1.2x - 3.9 > 0.4x - 0.94

A. (-?, 3.7)
B. (-?, 3.69)
C. (3.69, ?)
D. (3.7, ?)


Answer: D

Mathematics

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Round off the approximate number as indicated.21 2 significant digits

A. 21.0 B. 21.1 C. 21 D. 20.9

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Solve the problem.For what point(s) on the curve of y = x3 - x2 + x is the slope of a tangent line equal to 1?

A.
B. (0, 0) and 
C. (0, 0) and 
D. (1, 0) and 

Mathematics

Solve. -   = 

A. , - 
B.
C. , - 
D.

Mathematics

Perform the indicated conversion within metric units of length.6400 millimeters to meters

A. 6.4 m B. 640 m C. 64 m D. 0.64 m

Mathematics