Answer:
![c=\frac{3}{5}(n)+2.5](https://tex.z-dn.net/?f=c%3D%5Cfrac%7B3%7D%7B5%7D%28n%29%2B2.5)
Step-by-step explanation:
see the attached figure to better understand the problem
Let
c -----> the cost of some taxi journeys
n ----> the number of miles
we know that
The graph is a line
The equation of a line in slope intercept form is
![c=m(n)+b](https://tex.z-dn.net/?f=c%3Dm%28n%29%2Bb)
where
m is the slope
b is the c-intercept (value of c when the value of n is equal to zero)
Observing the graph we have the points
(0,2.5), (5,5.5)
<em>Find the slope</em>
The formula to calculate the slope between two points is equal to
substitute the values
we have
-----> because the point (0,2.5) is the c-intercept
substitute in the equation of slope-intercept form
![c=\frac{3}{5}(n)+2.5](https://tex.z-dn.net/?f=c%3D%5Cfrac%7B3%7D%7B5%7D%28n%29%2B2.5)
Answer:
B
Step-by-step explanation:
Answer:
±sqrt(T*L/m)=v
Step-by-step explanation:
T=mv^2/L
We want to solve the equation for v
Multiply each side by L
T*L=mv^2/L
*L
T*L=mv^2
Divide each side by m
TL/m=mv^2/m
T*L/m=v^2
Take the square root of each side
±sqrt(T*L/m)=sqrt(v^2)
±sqrt(T*L/m)=v
Answer:
maybe you should answer a question to get points
Step-by-step explanation: