Answer:
Triples
Step-by-step explanation:
Circumference of circle =
π
D
where D is its diameter.
If D increase 3 times, Circumference increases 3 time.
Simple linear relationship.1
Answer:
The equation of the parabola is .
Step-by-step explanation:
Since the directrix is of the form , the parabola is vertical. The vertex of the parabola () is the midpoint between the focus () and a point of the directrix (), that is to say:
(1)
If we know that and , then the coordinates of the vertex of the parabola:
The vertex factor () is the distance of the focus with respect to the vertex:
(2)
If we know that and , then the vertex factor is:
The equation of the parabola in the vertex form is described below:
(3)
Where:
- Independent variable.
- Dependent variable.
- Coordinates of the vertex.
If we know that and , then the equation of the parabola is .
39 x 10
= 390
39 x 40 (390 x 4)
= 1,560
39 x 2
= 78
1,560 - 78
= 1,482
ANSWER: 1,482
Answer:
(a, 0)
Step-by-step explanation:
Point S has the same x-coordinate as does Point R: a.
Point S has the y-coordinate 0, as Point S lies on the x-axis.
Correct final answer: (a, 0) represents Point S.
28 is a multiple of 7 and also a factor of seven!