Answer:
Step-by-step explanation:
The percent increase formula is
![%increase=\frac{new-original}{original}*100%](https://tex.z-dn.net/?f=%25increase%3D%5Cfrac%7Bnew-original%7D%7Boriginal%7D%2A100%25)
For the bread, our percent increase looks like this:
![\frac{25-15}{15}*100](https://tex.z-dn.net/?f=%5Cfrac%7B25-15%7D%7B15%7D%2A100)
which gives us a percent increase of 66.7%
For the cakes, our percent increase looks like this:
![\frac{12-10}{10}*100](https://tex.z-dn.net/?f=%5Cfrac%7B12-10%7D%7B10%7D%2A100)
which gives us a percent increase of 20%
Answer:
A clinical test on humans of a new drug is normally done in three phases. Phase I is conducted with a relatively small number of healthy volunteers. For example, a phase I test of a specific drug involved only 7 subjects.
Step-by-step explanation:
Area = l x w
Area =9 x 4.25
A = 48.25
A≈ 48 in²
You flip the sign from > to < only when you are dividing by a negative number and in this case it would be negative 9.
Answer:
This type of transformation is a horizontal stretch.
<em></em>
Step-by-step explanation:
Given
![y = x + 4](https://tex.z-dn.net/?f=y%20%3D%20x%20%2B%204)
![y = .5x + 4](https://tex.z-dn.net/?f=y%20%3D%20.5x%20%2B%204)
Required
Determine the type of transformation
The first function can be expressed as:
![f(x) = x + 4](https://tex.z-dn.net/?f=f%28x%29%20%3D%20x%20%2B%204)
While the second function is:
![g(x) = f(0.5x)](https://tex.z-dn.net/?f=g%28x%29%20%3D%20f%280.5x%29)
Solving f(0.5x), we have to substitute 0.5x for x in ![f(x) = x + 4](https://tex.z-dn.net/?f=f%28x%29%20%3D%20x%20%2B%204)
![f(0.5x) = 0.5x + 4](https://tex.z-dn.net/?f=f%280.5x%29%20%3D%200.5x%20%2B%204)
So:
The second function is:
![g(x) = 0.5x + 4](https://tex.z-dn.net/?f=g%28x%29%20%3D%200.5x%20%2B%204)
<em>This type of transformation is a horizontal stretch.</em>
<em></em>
<em>i.e. f(x) stretched to g(x)</em>