Answer: height of the door is x+4
Step-by-step explanation:
<span>centimeter, inch, yard, meter, kilometer, mile</span>
Answer:
2176
Step-by-step explanation:
the bottom part is only half so divide 64 and 2 to get 32 and then 32 times 68 is 2176
Given:
The equation of the circle is:
To find:
The radius of the circle.
Solution:
The standard form of a circle is:
...(i)
Where, (h,k) is the center and r is the radius.
We have,
In can be written as:
...(ii)
On comparing (i) and (ii), we get
Here, the center of the circle is the origin and the radius is equal to 4 units.
Therefore, the radius of the given circle is 4 units.
The general form of the line is:
y = mx + c where:
m is the slope
c is the y-intercept
Now, we are given that the slope = 1/2.
The equation now became:
y = (1/2) x + c
Now, we need to get the y-intercept. We are given that (-4 ,1) belongs to the line. Therefore, this point satisfies the equation of the line. Based on this, we will substitute with this point in the equation above and solve for c as follows:
y = (1/2) x + c
1 = (1/2)(-4) + c
1 = -2 + c
c = 1+2
c = 3
Based on the above, the equation of the line is:
y = (1/2) x + 3
