Step-by-step explanation:
zidufhehkcsyjodbjd r
Answer:
h=6
Step-by-step explanation:
since
is an equation for a line which intersects with the curve
. The point of intersection, let's say
, should satisfy the two equations. As a result, the value of y in the second equation can be replaced with the value of y in the first equation as the following,

therefore, the latter equation can be rewritten in a quadratic equation form as the following,
= 0
if the line is tangent to the curve, it means that the line touches the curve at one point, therefore the discernment of the second order equation will be equal to zero for the famous quadratic equation solution.

where
and
, as a result, the following equations can be deduced,

therefore, dividing both sides by 12

Answer:
Look down below ;)
Step-by-step explanation:
How far is the campsite from their car?
4 miles
(0,4)
Write an equation that describes the relationship between d and h.
d = 3h + 4
After how many hours will the hikers be 16 miles from their car?
16 = 3h + 4
12 = 3h
4 = h
After 4 hours
Answer:
30
Step-by-step explanation:
Let's say x is the number of friends he has
4 · x = 121 - 1
4x = 120
Divide by 4 on each side
x = 30
The circle has center at (9, 12) and passes through the origin.
Equation of the circle in center and radius form is given by

where r is the radius and center at (h,k)
Now substitute the value of the center we get

As it passes through the origin so we can write

Hence the equation of the circle is
