Answer:
Option B.
Step-by-step explanation:
Inverse function:
Suppose we have a function y = f(x). To find the inverse function, we exchange x and y on the original function, and then isolate y.
The domain of the inverse function(x values) is the range of the original function(y values).
Original function:
Domain is 
, and when 
. So the range is ![[-5,\infty]](https://tex.z-dn.net/?f=%5B-5%2C%5Cinfty%5D)
, that is, 
Inverse function:
Exchanging x and y
The inverse function is 
Domain:
Range of the original function is , so the domain of the inverse function is 
. The correct answer is given by option B.
This proportion is not correct because the two parts in the top (numerator)need to either both say base, or both say height.
If both tops said base, then both originals would be on the left, and both reductions would be on the right.
The way to look at this would be to make sure both units on the top, on the left, AND on the right had a similarity.
EXAMPLE:
Base original/base reduction and height original/height reduction
Or
Base original/height original and base reduction/height reduction
1/3+1/6
(2*1)/6+1/6
2/6+1/6
3/6
<span>
1/2</span>
<u>The cost of 10 Pencil will be .56</u>
Step-by-step explanation:
Given that the
cost of 25 pencils=1.40
cost of one pencil =1.40/25=.056
so, the cost of 10 pencil will be=.056*10=.56
Answer: Luis’s first step was incorrect, because he flipped the inequality sign when he subtracted
Step-by-step explanation:
Given: Amelia, Luis, Shauna, and Clarence used different approaches to solve the inequality
7.2b + 6.5 > 4.8b – 8.1.
If Luis started by subtracting 4.8b from both sides ,then he would get
7.2b + 6.5 - 4.8b> 4.8b – 8.1- 4.8b
⇒2.4b + 6.5 > – 8.1. But he wrote 2.4b + 6.5 < – 8.1 by flipping the inequality sign which was not correct .
The sign of inequality get flipped if we multiply or divide a negative numbers to the both sides .
Therefore, Luis’s first step was incorrect, because he flipped the inequality sign when he subtracted.
