6 and 
Explanation:
The expression:
6a - 
A coefficient is a numerical constant usually placed before a variable in an expression.
They are used to multiply variables.
Given equation is;

There are two variables in this expression which are;
a and - b

The coefficients in this expression are:
6 and 
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Quadratic equation brainly.com/question/1357167
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Answer:
Neptune and Uranus
Explanation:
Did a quiz on this not to long ago
The two additional forces that act on the ball as it travels between the pitcher and the home plate are air resistance and gravity.
<h3>What are the forces that affect object in motion;</h3>
- Air resistance: this is the force that oppose the motion of an object in air due to frictional force
- Gravity: this is the force due to weight of the object and acts downwards.
The two additional forces that act on the ball as it travels between the pitcher and the home plate include:
- Air resistance and
- Gravitational force
<h3>How the forces affect the motion of the ball</h3>
- Air resistance oppose the motion of the ball as it travels in air.
- Gravity is the force due to weight of the ball and acts downwards.
Learn more about forces on object in motion here: brainly.com/question/10454047
<span>An efect could be that sence the air us blowing on the hot tea that Nya has, an efect could be the temperatures mixing and the tea cooling down enough for Nya to drink</span>
Answer:
Gas Bubbles Appear,
Formation of a Precipitate,
Color Change,
Temperature Change,
Production of Light,
Volume Change,
Change in Smell or Taste
Explanation: