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
Irina18 [472]
3 years ago
8

What is the complete factorization of r2 - 6r - 9s2 + 9? A) (r - 3 + 3s)(r - 3 - 3s) B) (r + 3 + 3s)(r - 3 - 3s) C) (r - 3 + 3s)

(r - 3 + 3s)
Mathematics
1 answer:
nikitadnepr [17]3 years ago
6 0
r^2-6r-9s^2+9=r^2-6r+9-9s^2=r^2-2\cdot r\cdot3+3^2-9s^2\\\\\text{use}\ (a-b)^2=a^2-2ab+b^2\\\\=(r-3)^2-9s^2=(r-3)^2-(3s)^2\\\\\text{use}\ a^2-b^2=(a-b)(a+b)\\\\=(r-3-3s)(r-3+3s)\to A
You might be interested in
the swimming club's indoor pool is in a rectangular building Marco is laying tile around the rectangular pool
postnew [5]
Kiana is 14 zach is 3 times as old as him How old is he
4 0
3 years ago
Use the graph of the line to answer the questions.
Delvig [45]

Answer:

idk

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
A warehouse worker fills 150 orders per day on average. From day to day, the number of orders varies by 2%. What is the range of
choli [55]

Answer:

The range is from 147 to 153 orders per day

Step-by-step explanation:

orders varies by 2% means that orders can be LOWER THAN THE AVERAGE, or HIGHER THAN THE AVERAGE.

That is, by 2%.

First, we need to find the decimal of 2%, so

2/100 = 0.02

We multiply this with the average number of order, 150, to get the varying amount:

0.02 * 150 = 3

Thus, the range would be:

150 - 3 = 147

150 + 3 = 153

The range is from 147 to 153 orders per day

5 0
4 years ago
Simplify the following expression.<br><br>10|3 - 7| + 24<br><br>​
weeeeeb [17]

Answer:

0

Step-by-step explanation:

The answer is 0 due to using PEMDAS

5 0
3 years ago
Can you explain algebra
julia-pushkina [17]
Hell. fire blazing. pure hell<3
6 0
2 years ago
Read 2 more answers
Other questions:
  • The Golden Years Senior Citizen Center uses a phone tree to announce when the center will be closed for poor weather. When each
    6·2 answers
  • Subtract 2m – 7q + 5 from 4p + 2q and add your result to 7m² - 3m + 9q – 1
    14·2 answers
  • answer letter B I get confused to add or subtract like a different strategy thanks guys whoever answer this sorry if I said than
    9·1 answer
  • Marshall paid $277.13 for a new golf club, after tax, and the tax rate is 7%. What was the original price of the golf club?
    9·1 answer
  • How many units? What is e value of a?
    5·1 answer
  • Use a net to find the surface area of the right triangular prism shown below:
    10·1 answer
  • Allie is going to select a card from the group of cards<br><br> shown. Complete each statement.
    5·2 answers
  • Kelly works two jobs. She usually works at a retail store for 7 hours during the day and is paid $23.46 per hour by the store. I
    11·1 answer
  • Need Help! Given the drawing, what would the value of x need to be in order for it to be true that m || n ? ​
    13·1 answer
  • What size pizza should she order to get 37.68in of crust?
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!