<span>x^2+8x-20=0
Factor the left side of the equation
</span><span><span>(x−2)</span><span>(x+10)</span></span>=<span>0
</span>
Set the factors to both equal the number 0
<span><span>x−2</span>=<span><span><span>0
and/or
</span>x</span>+10</span></span>=<span>0
</span>x = 2 and/or x = -10
Answer:it’s b
Explanation:
Your welcome I took the test :)
Population density is the study of how many people live in some area as compared to other areas - this helps for example predict whether the area can preduce enough food for itself. It is measured in the number of people per a unit of area.
The correct answer then is:
<span> the number of people who live in a square mile or kilometer</span>
Pacific-Ring of Fire is the other name for the Circum-Pacific Belt. Among the options given withing the question, the correct option is option "C". It is actually the zone of earthquakes where 90% of the earthquakes of the world takes place. Numerous volcanic eruptions also occur in this region. This is a region where there is continuos shift of the tectonic plates and this results in either volcanic eruptions or earthquakes or both. Numerous volcanoes are also a part of this region. It is a horse-shoe shaped region. It has almost 452 volcanoes and they are either active or dormant.
