Solve the problem.In a milling operation, the thickness of the metal bars that can be produced satisfies the inequality  What range of thicknesses corresponds to this inequality?

A. [1.38, 1.97]
B. [0.3, 3.35]
C. [0.59, 3.35]
D. [0.59, 6.7]


Answer: C

Mathematics

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Solve using a system of linear equations in three variables.The Family Arts Center charges $23 for adults, $18 for senior citizens, and $9 for children under 12 for their live performances on Sunday afternoon. This past Sunday, the paid revenue was  for 874 tickets sold. There were 42 more children than adults. How many children attended?

A. 240 children B. 458 children C. 328 children D. 296 children

Mathematics

Graph the equation. +  = 1

A.

B.

C.

D.


Mathematics

Find the center, foci, and vertices of the ellipse.36x2 + 81y2 = 2,916

A. center at (0, 0)
foci at (-9, 0) and (9, 0)
vertices at (-81, 0), (81, 0)
B. center at (0, 0)
foci at (0, -6) and (0, 6)
vertices at (0, -36), (0, 36)
C. center at (0, 0)
foci at (- 3, 0) and (3, 0)
vertices at (-9, 0), (9, 0)
D. center at (0, 0)
foci at (0, - 3) and (0, 3)
vertices at (0, -9), (0, 9)

Mathematics

Find the specified domain.For f(x) = 3  and g(x) = 2x + 15, what is the domain of g ? f?

A. [-5, ?) B. [-20, ?) C. (-5, ?) D. (-?, ?)

Mathematics