Answer:
79
Step-by-step explanation:
Let the original number be x.
x/2 = 39.5
x = 39.5 × 2
x = 79
Answer:
The circle's circumference is equal to 14π yards.
General Formulas and Concepts:
<u>Geometry</u>
Circumference of a Circle Formula: C = πd
- <em>d</em> is the diameter of the circle
Step-by-step explanation:
<u>Step 1: Define</u>
<em>Identify.</em>
<em>d</em> = 14 yds
<u>Step 2: Find Circumference</u>
- Substitute in variables [Circumference Formula]: C = 14π yds
Topic: Geometry
Just subtract to find the difference.
75 - (-25) = 75 + 25 = 100.
It is 100 degrees hotter in florida than alaska.
Shifting a circle results to changes in the coordinates of the circle. For instance, if the coordinates of the center of the circle is taken to be (0,0), the new coordinates will be [(0+5),(0+2)] after shifting. The equation of the circle will also change with the same margin.
That is, the new equation will be;
(5+x)^2+(2+y)^2 =19
Notice, only the coordinates changes.
This is an equation in STANDARD form for a circle:
(x-h)^2 + (y-k)^2 = r^2
The values of (h, k) are the center point of the circle. When they are put into an equation, their symbols flip as in, if they are positive on a graph, they become negative in the equation and vice versa.
The value (r) is the radius and is squared in the equation. In this case, the square root of 1 is 1.
(x)^2 + (y-6)^2 = 1
