Answer the question.To complete the square from an equation in the form x2 - ax = b, is it ever appropriate to subtract a positive number from each side?

What will be an ideal response?


No. When completing the square, half the coefficient of the linear term is squared. Thus, the number added to both sides is always positive.

Mathematics

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Solve the given applied problems involving variation.The distance D that a spring is stretched by a hanging object varies directly as the weight W of the object. If a 28-kg object stretches a spring 83 cm, find the distance when the weight is 3-kg.

A. 23.25 cm B. 1.012 cm C. 114 cm D. 8.89 cm

Mathematics

State the quadrant in which the point is located.(20, -6)

A. I B. II C. III D. IV

Mathematics

Evaluate.62 - 2(3) + 50 ÷ 5

A. 10 B. 16 C. 40 D. 58

Mathematics

Write the expression using exponents.(-7)(-7)(-7)(-7)(-7)

A. 5-7 B. 75 C. -35 D. (-7)5

Mathematics