Answer:
<em>Average rate of change is </em><em>-78.</em>
Step-by-step explanation:
A talent competition on television had five elimination rounds. After each elimination, only one-third of the contestants were sent to the next round.
The table that shows the number of contestants in each round of the competition is,
x f(x)
1 243
2 81
3 27
4 9
5 3
Average rate of change is the change in the y-value divided by the change in the x-value for two points on the graph.
i.e 
So, the average rate of change of 
from 
to 
is,
Since f(x) is decreasing, so rate of change is negative.
<em>Question # 4</em>
<em>Answer:</em>
<em>Total number of cameras left to bid on = 3/5</em>
<em>Step-by-step Explanation:</em>
<em>To determine:</em>
What fraction of the total number of cameras is left to bid on?
<em>Solution Steps:</em>
- Total number of antique cameras contributed by a local shop = 10
- The number of cameras accepted for bids = 4
Total number of cameras left to bid on = 10/10 - 4/10
= 6/10
= 3/5 ∵ As 6/10 = 3/5
<em>Hence, total number of cameras left to bid on = 3/5</em>
<em> </em><em>Question # 5</em>
<em>Answer:</em>
<em>The remaining portion of tickets = 17/100</em>
<em>Step-by-step Explanation:</em>
<em>To determine:</em>
<em>What portion of the tickets remain?</em>
<em>Solution Steps:</em>
- The total number of tickets = 100
- The number of tickets that were sold in first week = 83
The remaining portion of tickets = 100/100 - 83/100
= 17/100
<em>Hence, the remaining portion of tickets = 17/100</em>
<em>Keywords: fraction, number</em>
<em>Lear more about fractions from brainly.com/question/2261275</em>
<em>#learnwithBrainly</em>
7x(√x - 7√7) Multiply √7x to "√x" and "-7√7" respectively:
√7x*√x - 7√7*√7x
First is to simplify: √7x² - 7√7²x
Extract the squares: x√7 - 7*7√x
Then, we simplify: x√7 - 49√x
After simplifying the equation, I got the answer x√7 - 49√x.
So you have 20% of blue and 50% of black.
So you have 70% in total that are both blue and black.
100%- 70%= 30%
So that means 30% were neither blue or black.
Do a proportion
30/100= x/30
30 x 30= 900
900 divided by 100= 9
Answer is 9 shirts are neither blue or black
Answer:55.44
Step-by-step explanation: I have do my work
