Find the value of x.
2 answers:
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For a quadratic of the form 
, we have the quadratic formula
,
where a is the coefficient (number before the variable) of the squared term, b is the coefficient of the linear term, and c is the constant term.
So, given
, we can get that 
, and 
. We substitute these numbers into the quadratic formula above.
This is our final answer.
If you've never seen the quadratic formula, you can derive it by completing the square for the general form of a quadratic. Note that the
symbol (read: plus or minus) represents the two possible distinct solutions, except for zero under the radical, which gives only one solution.
where a is the coefficient (number before the variable) of the squared term, b is the coefficient of the linear term, and c is the constant term.
So, given
This is our final answer.
If you've never seen the quadratic formula, you can derive it by completing the square for the general form of a quadratic. Note that the
Answer:
--- Curved Surface Area
--- Total Surface Area
Step-by-step explanation:
Given
Shape: Cylinder
-- height
--- radius
Solving (a): The curved surface area (CSA)
This is calculated as:
This gives:
Solving (b): The total surface area (TSA)
This is calculated as:
This gives:
The Priority is always to parenthesis. It means that in both equations, begin by operating what's inside the parenthesis. Then Subtract what's left.
For the first one you get:
For the second one you get:
Which mean that The 2 equations are not equal, because
Hope this Helps! :D
For the first one you get:
For the second one you get:
Which mean that The 2 equations are not equal, because
Hope this Helps! :D