Answer:

Step-by-step explanation:
- The lengths of the sides of a 30-60-90 triangle are in the ratio 1:2:√3.
- The lengths of the sides of a 45-45-90 triangle are in the ratio 1 : 1 : √2
- We can get the length of the longest side of the bottom triangle is 9×2÷√3 =

- And based on the theory shown on the 2nd step, we can get x (the length of the longest side of the upper triangle) is
x√2
15c-25
15c=25
your answer is c=13.5
Answer:

Step-by-step explanation:
Given
![y = \sqrt[3] x](https://tex.z-dn.net/?f=y%20%3D%20%5Csqrt%5B3%5D%20x)
Required
Determine the average rate of change over [2,7]
This is calculated as:

In this case:
and 
So, we have:


From the table:
f(7) = 1.91
f(2) = 1.26



Answer:
12 hours
Step-by-step explanation:
Let's set the speed as "s".
Remember that distance = speed * time
So, plugging the numbers given...
7 = s * 8.4
Divide both sides by 8.4
s = 5/6
Now, plug this into the distance = speed * time, with the distance being 10. Set the time as "t"
10 = 5/6 * t
Divide both sides by 5/6
12 = t
So, it would take 12 hours for the snail to crawl 10 miles.