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)
The answer is 24. you round up.
Answer:
2.5477 feet
Step-by-step explanation:
Refer the image attached to understand my solution.
BC = height of lamppost.
DE = Julia
AD = shadow of Julia
BD = 2 feet. AD = 5 feet
BA = BD + AD
= 2 + 5 = 7 feet
In ΔABC
tan 20° = ![\frac{BC}{BA} = \frac{BC}{7}](https://tex.z-dn.net/?f=%5Cfrac%7BBC%7D%7BBA%7D%20%20%3D%20%5Cfrac%7BBC%7D%7B7%7D)
BC = 7 * tan 20°
BC = 2.5477 feet
SO the height of lamppost = 2.5477 feet
Answer:
58.0
Step-by-step explanation:
Given the data:
56 65 62 53 68 58 65 52 56
Reorderd data: 52, 53, 56, 56, 58, 62, 65, 65, 68
Median = 1/2(n + 1) th term
n = sample size = 9
Hence,
Median = 1/2(9 + 1)th term
Median = 1/2(10)th term
Median = 5th term
5th term in the reordered data = 58
Hence, median age is 58