Greater than. 1/2 is only 4/8
The formula to calculate circumference is πd or 2πr. We also know that 2r = d.
So, using these formulas, let's try to figure out the first row of the table.
The diameter is 14.
We know that 2r = d or 2r = 14, therefore r=7. This means the radius is 7.
The circumference is πd or 14π or ≈ 43.96.
Let's move to the second row.
We know that the radius is 21.
2r = d
2(21) = d
d = 42
The diameter is 42.
Therefore, the circumference is 42π or ≈ 131.88
Let's move to the final row.
We know that the radius is 10.5.
2r = d
2(10.5) = d
d=21
Therefore, the diameter is 21 cm.
Circumference = πd = 21π or ≈ 65.94
Answer:
........
Step-by-step explanation:
.......................
Vertex<em> </em>is at
<em>y-intercept</em> is 3.
The parabola <em>opens up</em>.
Step-by-step explanation:
The graph of the equation is hereby attached in the answer area.
Vertex is the point on the parabola where the graph crosses its axis of symmetry. The axis of symmetry here(), is shown with the dotted line in the graph attached.
<em>y-intercept </em>is defined as the value of y where the graph crosses the y-axis. In other words, when . Putting
And, the graph opens up as shown the graph figure as well. It is also evident from the co-efficient of in the given equation . Here, co-efficient of
So, vertex<em> </em>is at
<em>y-intercept</em> is 3.
The parabola <em>opens up</em>.