Find the sum.Find the sum of the first 40 terms of the arithmetic sequence: -1, -6, -11, -16, . . .

A. -201
B. -4040
C. -3935
D. -3940


Answer: D

Mathematics

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Fill in the blank with the correct inequality symbol, using the rules for producing equivalent inequalities.If  ? 9, then x  36.

A. > B. < C. ? D. ?

Mathematics

Assume that two marbles are drawn without replacement from a box with 1 blue, 3 white, 2 green, and 2 red marbles. Find the probability of the indicated result.The second marble is red, given that the first marble is white.

A.
B.
C.
D.

Mathematics

Find the slope and the y-intercept from the equation of the line. Sketch a graph of the equation.3x + 4y = 14

A. m = ; y-intercept = 

B. m = ; y-intercept = 

C. m = - ; y-intercept = 

D. m = ; y-intercept = 

Mathematics

Add.(-9x9 - 4x7 + 8x4 - 3) + (8x8 + 7x4 - 9x) + (-3x7 - 4x4 - 9x + 7)

A. -9x9 + 8x8 - 7x7 + 11x4 - 18x + 4 B. -x9 - x7 + 11x4 + 4 C. -9x9 + 8x8 - 7x7 + 15x4 + 4 D. -9x9 + 8x8 - x7 + 15x4 - 18x + 4

Mathematics