Chapter 10: Problem 45
Use mental math to find the product. $$16^{2}$$
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Which of the following is a correct factorization of \(72 x^{2}-24 x+2 ?\) (A) \(-9(3 x-1)^{2}\) (B) \(8\left(9 x-\frac{1}{2}\right)^{2}\) (C) \(8\left(3 x-\frac{1}{2}\right)\left(3 x-\frac{1}{2}\right)\) (D) \(-8\left(3 x-\frac{1}{2}\right)^{2}\)
Solve the equation. \(|x+6|=13\)
Which one of the following is a solution of the equation \(7 x^{2}-11 x-6=0 ?\). A) \(-2$$ (B))-\frac{3}{7}\) (C) \(-\frac{2}{7}\) (D) \(\frac{3}{7}\)
The safe working load \(S\) (in tons) for a wire rope is a function of \(D\), the diameter of the rope in inches. Safe working load model for wire rope: \(4 \cdot D^{2}=S\) What diameter of wire rope do you need to lift a 9 -ton load and have a safe working load?
Find the product. $$(11-6 x)^{2}$$
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