The awnser is c. hope this helps
Answer:
Focus of a Parabola. A parabola is set of all points in a plane which are an equal distance away from a given point and given line. The point is called the focus of the parabola and the line is called the directrix. The focus lies on the axis of symmetry of the parabola.
Step-by-step explanation:
Answer:
Fertilizer B produced a 15% greater yield
Step-by-step explanation:
Mean yield fertilizer A = 20.2
Mean yield fertilizer B = 23.2
Thus, 23.2 − 20.2
20.2
= 0.1485 ≈ 0.15 or 15%
Answer:
Step-by-step explanation:
Substitute y = x-4 in the first equation.
Distribute -2 in the expression.
Because we only want to find the value of x.
Therefore the answer is -4.