Solve the radical equation. Check all proposed solutions.x -  = 4

A. x = 2, 9
B. x = -1
C. x = 1, 2
D. x = 9


Answer: D

Mathematics

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Match the given graph with its equation.

A. 16x2 + 9y2 = 144 B. 9x2 - 16y2 = 144 C. 16x2 - 9y2 = 144 D. 9x2 + 16y2 = 144

Mathematics

Rewrite the expression using the Distributive Property and simplify the result.9(p2 + 7)

A. p2 + 63 B. 63p2  C. 9p2 + 63 D. 9p2 + 7

Mathematics

For the given figure, find the ratio of the length of the longest side to the length of the shortest side. Write the ratio as a fraction in lowest terms.A = 0.8 yardB = 5.6 yardsC = 0.8 yardD = 5.6 yards

A.  
B.  
C.
D.  

Mathematics

Provide an appropriate response.Suppose that y is a function of u, and that u is itself a function of x. How does one find the derivative of y in terms of x?

A. The chain rule:  =  ? 
B. The product rule:  = y ?  + u ? 
C. The sum rule:  =  + 
D. The difference rule:  =  - 

Mathematics