Answer:
168 ft
Step-by-step explanation:
To calculate the area of a parallelogram, the formula is Area=base*height
In this case, the base is 14ft and the height is 12ft
so,
14ft*12ft=168ft^2
He needs 168ft or fabric to cover the area
I don't think so I'm in forth grade
F(x) = x - 2sinx
To find for what values of x graph has tangents we need to differentiate function f(x).
f'(x) = 1-2cosx
Now, if we want to have horizontal tangents we need to make function f'(x) equal to 0 because at minimum or maximum of function f(x) tangent is horizontal.
1-2cosx = 0
cosx = 1/2
x = pi/3 + 2*n*pi and
x = -pi/3 + 2*n*pi
Explanation: cosx = 1/2 for both 60° and -60°. If we make one circle cosx will be equal to 1/2 for 420 and 300 degrees. Writing degrees in radians (using pi) we can write formulas above where 2*pi represents one full circle and n is an integer which represents how many circles we made.
C=(-10;5). If you want an explanation I would be happy to explain it
