Answer:
-13
Step-by-step explanation:
-5x + 2 = 67
-5x = 65
5x = -65
x = -13
To determine the thickness of the film, we assume the shape of the film is in a form of cylinder where the thickness is equal to the height. The volume of a cylinder is expressed as:
V = pi (r^2) h
We calculate as follows:
0.23 = pi (10^2) (h)
h = 0.0007 cm
Answer:
yes
Step-by-step explanation:
A quadratic function has the general form
fx) = ax² + bx + c ( a ≠ 0 )
f(x) = x² - 2x + 3 ← is in this form and is a quadratic function
