1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Xelga [282]
3 years ago
7

How do you get 40y from the difference of 2 squares with the problem (5y+4+3x)(5y+4-3x)? I understand distribution method. I don

't know where the 40y comes from using the special product method.
Mathematics
1 answer:
otez555 [7]3 years ago
3 0

Answer:

Step-by-step explanation:

(5y+4+3x)(5y+4-3x) = (5y+4)² - (3x)²......(from the difference of 2 squares )

by identity : (a+b)(a-b) = a² - b²

in this exercice ; a = 5y+4 and b  = 3x

You might be interested in
125 + .375=?<br><br><br> 0.654 + 0.389 - 0.293=?
Lana71 [14]
If it's 125 + 0.375 then the answer is 125.375

and for the second it's 0.75
3 0
3 years ago
Read 2 more answers
In attachments/ Please help me!!!/Brainlist!!!!
miss Akunina [59]
If my calculations are correct the answer is cut your answer in half
7 0
2 years ago
Read 2 more answers
Please help with question below.
Nonamiya [84]

Answer:

Step-by-step explanation:

We have to find the points that are on the graph by finding the order pair (x, y) We are given the x value, so substitute x in the given equation f(x) and find y.

The graph is a line

6 0
2 years ago
I don’t feel like doing math
Zinaida [17]

Answer:

26.14

Step-by-step explanation: Just subtract.

7 0
2 years ago
It took 7.2 minutes to upload 8 digital photographs from your computer to a website. At this rate, how long will it take to uplo
kenny6666 [7]
If it take  some x  minutes to upload  some y  digital photographs, it means it has an average of: x/y minutes to upload a single digital photograph. Then, to upload z photographs, you just multiply   x/y   by z.

Spoilers for answer:
If it take 7.2 minutes to upload 8 digital photographs, it means it has an average of: 7.2/8 = 0.9 minutes to upload a single digital photograph. This means that, by this rate, it will take 20 * 0.9 = 18 minutes to upload 20 photographs to the website.
5 0
3 years ago
Other questions:
  • What is the answer? Someone please help
    15·2 answers
  • What is the missing number for n 31.53=62.4?
    5·1 answer
  • On a road trip, Sara’s brother drove 47.5% of the trip, and Sara drove 80% of the remainder. If Sara drove for 4 hours and 12 mi
    10·1 answer
  • I <br>need help solving this
    10·2 answers
  • Please solve the proof
    5·1 answer
  • True or false? A circle could be circumscribed about the quadrilateral below.
    6·1 answer
  • Someone help with math?<br> thanks so much
    11·1 answer
  • Gabriel tossed a paper cup 40 times and recorded how the cup landed each time. He organized the results in the table shown. Find
    7·1 answer
  • What is 10+10 hmmmmmmmm
    14·1 answer
  • What is the surface area of 3in 11in 4in 5in triangular prism
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!