0.2 would be 20% written as a decimal.
Step-by-step explanation:
first of all I have to say the range should be " y >= 0" and not just "y > 0", because x can be 0, and then y is 0 too.
but under the the same assumption of the definition above, the correct answer is B, y < 0.
because a×|x| means we multiply a negative value with a positive value. and that result is always a negative value.
so, it cannot be C.
and it cannot be A, because
if |x| < 1 (e.g. 0.5), then a×|x| > a, as e.g. -1 > -2
By "y = −9x2 − 2x" I assume you meant <span>y = −9x^2 − 2x (the "^" symbol represents exponentiation).
Let's find the first derivative of y with respect to x: dy/dx = -18x - 2. This is equivalent to the slope of the tangent line to the (parabolic) curve. Now let this derivative (slope) = 0 and solve for the critical value: -18x - 2 = 0, or
-18x = 2. Solving for x, x = -2/18, or x = -1/9.
When x = -1/9, y = -9(-1/9)^2 - 2(-1/9). This simplifies to y = -9/9 + 2/9, or
y = -7/9.
The only point at which the tangent to the curve is horiz. is (-1/9,-7/9).</span>
U just times it it's pretty easy once you get the hang of ut
There are 6 2/3 cup servings in a 4 cup container.