Coefficient of the quadratic term clearly is -4 (ALTERNATIVE 2)
Answer:

Step-by-step explanation:
Samuel wants at least 15 grams
Let's expand on "at least 15"
It means that Samuel wants no less than 15, but 15 or more
It could be 16, but not 14
To create an inequality, 15 or more can be written as
(x is 15 more more)
The answer is 
Hope this helps :)
Have a nice day!
Answer:B
Step-by-step explanation:
Given
Height of building 
Angle of depression 
Suppose distance of Point A from base of building be 
From diagram we can write




So, point A is
from base of building
60.38 is the answer to this