Which of the following statements best describes why graphs are useful in explaining scientific data? a) graphs are used in both math and science classes. b) graphs are a required part of any lab write up or scientific paper. c) graphs can represent a lot of information in a clear and concise manner. d) graphs, like drawings and photographs, add an interesting and colorful element to any lab write-up or scientific paper.

A) Graphs are used in both math and science classes.

C) Graphs can represent a lot of information in a clear and concise manner.

Explanation:

A graph generally represents the relationship between two variables. These two variables can be anything. It generally shows how one variable changes with respect to another variable.

These variables can be y and x values of a function in mathematics.

The variables can also be pressure and temperature in a science class.

Tabular data can be shown in a graphical form to show their inter relationship in a concise manner.

Graphs always have a purpose. If a scientific paper just discusses an aspect of a subject it may not require a graph.

a person with a mass of 106kg has a weight of 1060n

answer: 2×10^-2kg

explanation: density= mass per volume

vol=mass/density

converting to s.i units we have;

3÷1000kg = 0.003

1.5÷100m = 0.15

0.003/0.15 = 0.02kg