( -8v + 6v 4 - 8 ) + ( 3v - 7 ) simplified

6v⁴ - 5v - 15

Step-by-step explanation:

Step 1: Write out expression

-8v + 6v⁴ - 8 + 3v - 7

Step 2: Combine like terms (v)

6v⁴ - 5v - 8 - 7

Step 3: Combine like terms (constants)

6v⁴ - 5v - 15

Given:

Volume of a cube = 1.5 m³

To find:

The length of its edge to the nearest tenth of a meter.

Solution:

Let a be the length of its edge.

We know that, volume of a cube is

where, a is edge.

Volume of a cube = 1.5 m³

Taking cube root on both sides, we get

Approximate the value to the nearest tenth (one decimal place) of a meter.

Therefore, the length of the edge of the cube is about 1.1 meters.