Center of a circle is a midpoint of line connecting two endpoints so center is:
(12,-14) (2,4) we divide those two points by two
C(a,b)- center
C(a,b)=((12+2)/2),(-14+4)/2)=(7,-5)
Radius is the distance from the center to any point on the circle:
we take point (2,4)
r=
Relative dating of rock layers i think
Answer:
Positive 2.
Step-by-step explanation:
Answer:
Step-by-step explanation:
<u><em>The correct question is</em></u>
What is the equation of a line that passes through the point (2, 7) and is perpendicular to the line whose equation is y=(x/4)+5 ?
step 1
Find out the slope of the given line
we have
so
the slope is
step 2
Find out the slope of the line perpendicular to the given line
Remember that
If two lines are perpendicular, then their slopes are opposite reciprocal (the product of their slopes is equal to -1)
we have
substitute
step 3
Find the equation of the line
The equation of the line in point slope form is
we have
substitute
Convert to slope intercept form
Answer:
Amount of money paid by each student is equal to
Step-by-step explanation:
Given: A group of children bought presents that cost each and a card that cost .
To find: amount of money each student paid in terms of
Solution:
Cost of each present
Cost of presents
Cost of a card
Therefore,
Amount of money paid by each student in terms of = Cost of presents + Cost of a card