Solve the equation by making an appropriate substitution.x2/5 - x1/5 - 6 = 0

A. {-243, 32}
B. {-3, 2}
C. {3, -2}
D. {243, -32}


Answer: D

Mathematics

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New telephone lines must be installed to connect 8 cities (A, B, C, D, E, F, G, and H). Due to government regulations, the only possible connections that are allowed are shown by the edges on the network below. The numbers on the edges indicate the cost (in millions of dollars) of each possible connection. The telephone company wishes to connect the cities in the cheapest possible way. In an optimal solution to this problem there will not be a direct connection between

A. B and C. B. E and G. C. C and D. D. B and D. E. all of these will be directly connected.

Mathematics

Find the value of the expression using the given values. + x = -9, y = -4

A. 97 B. -5 C. 5 D. 13

Mathematics

Graph the line containing the given pair of points and find the slope. (-4, -5) (9, -4)

A. - 

B. - 13

C. 13

D.

Mathematics

Answer the question.Use the equation 5x2 - 2x = c to explain how to solve a quadratic equation by completing the square.

What will be an ideal response?

Mathematics