(a)² + (b)² = ?
help please

Temperature and kinetic energy are proportional. a) adirectly b) directly c) indirectly

Scientists often have to deal with numbers that are either very large or very small. for example, the radius of the sun is approximately 696,000 kilometers, while bacterial cells are as small as 1.9 × 10-4 millimeters. express each number in an alternate form.

What are two radioactive isotopes that are used for dating rocks that are older than 10 million years