<p>I already went through the CB explanations however I am still confused on a few questions. Please answer any that you can!</p>
<p>CR:
pg 395 #18 - the line they tell you to go back to is "Historically, its subj was nobody special, probably the wife of a Florentine merchant named Giocondo. But her portrait set the standard for High Renaissance paintings in many important ways" and the questions is
The observations in lines 7-10 "Historyically...ways" establish a contrast between a woman's
a) unremarkable appearance and her portrait's astonishing beauty
b)humble origins and her portrait's monetary value
c)untimely demise and her portrait's immortality
d) lack of charisma and her portrait's universal allure
e) ordinary status and her portrait's aesthetic significance</p>
<p>the right answer was e, i understand the first part of "ordinary status" being correct, but where from the quote can you find anything about aesthetic significance??</p>
<p>MATH</p>
<p>1st question- pg 397 #5 (involves a venn diagram so you might need to look in the book)
The right answer for this one was c) 30%, however, i am confused because i learned that in order to solve these problems you do X (butterflies) + Y (grasshoppers) + Neither - Both, but when you plug in the numbers that only gets you 24. Dont you always have to subtract the "both" part to figure out the total??? Cuz for the answer that the book is saying means you would add the "both part"
Hope that made some sense and someone will understand what im saying!</p>
<p>2nd question- pg 399 #14
If (2x-5)(2x+5)=5, what is the value of 4x^2?
The answer is E) 30
I got this right but i was wondering if there was a shorter method other than factoring it all out?</p>
<p>3rd question- pg415 #8
In an election, 2.8 million votes were cast and each vote was for either Candidate I or Candidate II. Candidate I recieved 28,000 more votes than Candidate II. What percent of the 2.8 million votes were cast for Candidate I?
The answer is C) 50.5%
I also got this answer right but I feel like there must be a shorter way to do it. I figured it out by all algebra and it took quite a few steps. Is there a faster way to solve this?</p>
<p>4th question- pg 418 #16
A four-digit integer, WXYZ, in which W, X, Y, and Z each represent a different digit, is formed according to the following rules
1. X = W + Y + Z
2. W= Y + 1
3. Z = W - 5
What is the four-digit integer?
The answer is 5940</p>
<p>I figured this out eventually but I sorta just guessed a bunch of times. How do you really solve this in a reasonable amount of time. The way CB described was so confusing.</p>
<p>5th question- pg424 #14
This question you must look at the picture for
The answer is B) 20</p>
<p>I understood that you must multiply 5 times 4 in order to get the number of combinations, however, i then multiplied that by two because based on the diagram, cant there really be two different designs for every one combination of 2 colors. Like lets say that the colors green and red are chosen from the 5 different colors, then couldnt there be two possible ways that green and red could be painted here? like green could be color 1 while red is color 2 and vice versa?</p>
<p>6th question- pg424 #15
If the length of a rectangle is increased by 30% and the width of the same rectangle is decreased by 30%, what is the effect on the area of the rectangle?
The answer is E) It is decreased by 9%</p>
<p>Now when I looked in the explanations, i had it right so far. I made the length x and the width y. I had gotten up to the fact that the area of the new rectangle would be .91xy as opposed to the original area of xy. But then I dont understand how to get to 9% from that point. Wouldnt the area of the rectangle have decreased by like 91%?</p>
<p>Any further explanations would be greatly appreciated!!</p>