Some of the steps in the derivation of the quadratic formula are shown. Step 3: –c StartFraction b squared Over 4 a EndFraction = a(x squared StartFraction b Over a EndFraction x StartFraction b squared Over 4 a squared EndFraction) Step 4a: –c StartFraction b squared Over 4 a EndFraction = a(x StartFraction b Over 2 a EndFraction) squared Step 4b: negative StartFraction 4 a c Over 4 a EndFraction StartFraction b squared Over 4 a EndFraction = a(x StartFraction b Over 2 a EndFraction) squared Which best explains or justifies Step 4b? factoring a polynomial multiplication property of equality converting to a common denominator addition property of equality

2) the relationship between temperature in degrees fahrenheit, f, and units kelvin, k, is given by the formula k32) 273.15. which of the following readings, in kelvins, is equivalent to a fahrenheit reading of 7 (rounded to the nearest hundredth decimal place)?

Which of the following best describes the difference between “autobiography” and “memoir”? a. autobiography is written about the author's own interpretation of events; memoir is a written interpretation of events. b. memoir covers a particular time in the writer’s life or recounts life events around one or two themes; autobiography covers the entire story of the author's life and has multiple themes. c. autobiography covers the entire story of the writer's life and has multiple themes; memoir is a shorter written work with one theme. d. autobiography covers entire story of the writer's life and has multiple themes; memoir is the writer’s random memories about past experiences.

Which characteristic demonstrates a healthy self-esteem? accepts others does not listen well seeks constant approval frustrates easily