Use the distributive property to simplify the expression. 7(–5x + 7) a. 12x + 14 b. –12x – 14 c. 35x – 49 d. –35x + 49

Astone dropped into a well is heard to strike the water after 8seconds. find the depth of the well if the velocity of sound is 350m/s

Since the investigative question has two variables, you need to focus on each one separately. thinking only about the first part of the question, mass, what might be a hypothesis that would illustrate the relationship between mass and kinetic energy? use the format of "if…then…because…” when writing your hypothesis.

The frequencies refer to the sample data collected from a population of interest when performing a hypothesis test comparing two or more population proportions.