Find the LCD. Do not combine fractions. , 

A. x(x - 3)
B. x
C. x - 3
D. 8


Answer: A

Mathematics

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Solve the problem.Suppose that z varies jointly with x and y and that z = 343 when x = 7 and  Find the constant of proportionality k. Then, find z when x = 7 and y = 8.

A. k = 2.9; z = 162.4
B. k = 33,614; z = 
C. k = 3.9; z = 218.4
D. k = 3.5; z = 196

Mathematics

Simplify the expression.

Mathematics

Determine the number and type of solutions.x2 + 10x + 29 = 0

A. 2 imaginary solutions B. 1 real solution C. 2 real solutions

Mathematics

Graph the solution of the system. 2x + 3y ? 6 x - y ? 3 x ? 1

A.

B.

C.

D.

Mathematics