Answer:
x = ± 
Step-by-step explanation:
Given
x² - 7 = 0 ( add 7 to both sides )
x² = 7 ( take the square root of both sides )
x = ± 
Answer:5 units
Step-by-step explanation:
Area(a)=30
Base(b)=12
Height(h)=?
Area of =(base(b) x height(h))/2
30=(12 x h)/2
Cross product
30 x 2=12 x h
60=12h
Divide both sides by 12
60/12=12h/h
5=h
Therefore height(h)=5units
Answer:

Step-by-step explanation:
Look at graph above⤴⤴⤴
Hope this helps :)
Step-by-step explanation:
the answer is in the attachment
Answer:
9:7
<h3>Step by step Explanation:</h3>
i think this is the right answer