The equation d=13/v shows that the density of a particular substance equals a mass of 13 grams divided by the volume of the substance. what happens to the density as the volume approaches 0?

the density approaches infinity.
the density approaches 0.
the density approaches 1.
the density approaches 13.

Option A is correct

The density approaches infinity.

Step-by-step explanation:

Given the equation:

              ....[1]

where,

D is density of a particular substance .

v is the volume of the substance.

We have to find What happens to the density as the volume approaches 0.

As the volume approaches to 0

⇒

[1] ⇒

⇒The density approaches infinity.

Therefore, the density as the volume approaches 0 is,  infinity.

it costs $20 to interview each person for a survey. find the cost to obtain a +- 3% margin of error.

step-by-step explanation:

copy and paste, put it in google

-7

step-by-step explanation:

x^2 + 18x + 74 = (x + 9)^2 - 81 + 74

= (x + 9)^2 - 7.

so q = -7.