An air conditioning unit promises to have a cooling capacity of 6,000 british thermal units (btu). the unit has a maximum variance of y btu. if x is the air conditioning unit’s actual capacity, which graph could be used to determine variance levels that would cause a unit to be rejected because of its cooling capacity?

Option 2.

Step-by-step explanation:

Let as consider x be the  air conditioning unit's actual capacity and y is the maximum variance in British thermal units (Btu).

It is given that an air conditioning unit promises to have a cooling capacity of 6,000 British thermal units (Btu).

We need to find the graph that could be used to determine the variance levels that would cause a unit to be rejected because of its cooling capacity.

It means the maximum variance is less than or equal to absolute difference of actual capacity and 6,000.

The related equation of this inequality is

It is a V-shaped curve with vertex (6000,0) and y-intercept (0,6000).

The related curve is a solid V-shaped curve because the points on curve included in the solution set.

The shaded region lie below the curve because the sign of inequality is ≤.

Therefore the correct option is 2.

The coefficient 3.99 represent the cost of one bottle of nail polish.

Step-by-step explanation:

Given:

The equation to represent the amount of money left after buying 'p' bottles of nail polish is given as:

The remaining amount with Itzel can be calculated as:

Remaining amount = Initial amount - Cost of 'p' bottles.

The above expression tells us two things:

1. Initial amount of money Itzel has was 25.

2. The cost of 'p' bottles of nail polish is .

Therefore, the cost of one bottle is calculated using the unitary method is given as:

Therefore, cost of 1 bottle of nail polish is 3.99. Hence, coefficient 3.99 represent the cost of one bottle of nail polish.