Solve the system using the substitution method. If the system has no solution or an infinite number of solutions, state this.3x + 15y = 9  x = -5y - 3

A. (3, 5)
B. No solution
C. Infinite number of solutions
D. (5, 3)


Answer: B

Mathematics

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Graph the hyperbola. Give the coordinates of the center as well as the values of a and b.y2 - 9x2 = 81

A. center (0, 0), a = 9, b = 3

B. center (0, 0), a = 9, b = 3

C. center (0, 0), a = 3, b = 9

D. center (0, 0), a = 3, b = 9

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Determine whether there is sufficient information for solving a triangle, with the given combination of angles and sides, by the law of sines.b, B, and c

A. Yes B. No

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Write the function without radicals by using fractional exponents.y = 

A. y = (5x - 8)10 B. y = (5x - 8)5/2 C. y = (5x - 8)2/5 D. y = (5x - 8)5

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Set up the percent proportion, and write "unknown" for the value that is not given. Recall that the percent proportion is  = . Do not try to solve for any unknowns.23 is what percent of 96?

A.  = 
B.  = 
C.  = 
D.  = 

Mathematics