Question

Type the correct answer in the box.

Scientists often 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 of these numbers in an alternate form.

In scientific notation, the radius of the Sun is
× 10
kilometers.

In expanded notation, each bacterial cell is
millimeters wide.

Answer 1

a= In scientific notation

6.96×10⁵ Km

b =In expanded notation

0.00019 mm

Step-by-step explanation:

Given data:

Radius of sun = 696000 Km

size of bacterial cell = 1.9 ×10⁻⁴ mm

Radius of sun in scientific notation = ?

Size of bacterial cell in expanded notation = ?

Solution:

Radius of sun:

696000 Km

In scientific notation

6.96×10⁵ Km

Size of bacterial cell:

1.9 ×10⁻⁴ mm

In expanded notation

1.9/ 10000 = 0.00019 mm