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
lozanna [386]
3 years ago
14

4xsquared-3xy+9ysquared-3 (5xy+7ysquared)

Mathematics
1 answer:
Flauer [41]3 years ago
7 0
4x² - 3xy + 9y² - 3(5xy + 7y²)
4x² - 3xy + 9y² - 3(5xy) - 3(7y²)
4x² - 3xy + 9y² - 15xy - 21y²
4x² - 3xy - 15xy + 9y² - 21y²
4x² - 18xy - 12y²
You might be interested in
The price of a ticket was increase from 50p to 60p. What is the increase a as a fraction in its simple form? As a percentage of
PSYCHO15rus [73]
10p or 20% was added on
5 0
3 years ago
Read 2 more answers
A recipe for lemonade calls for 6 cups of lemonade for every 24 cups water. Which equation can be used to find x, the percent of
Gelneren [198K]

Answer:

To make 6 cups, you will need 2 cups of lemon and 4 cups of water....6 total

TWO of the six are lemon    2/6 x 100 = 33.33% Lemon    the rest is water  100-33.33= 66.67% water

OR

FOUR out of the SIX are water    4/6 x 100 = 66.67% Water

Step-by-step explanation:

5 0
2 years ago
Read 2 more answers
A virus has infected 400 people in the town and is spreading to 25% more people each day.
NeTakaya

Answer:

N = 400(1.25^t); 3725

Step-by-step explanation:

25% more is 125% of the previous, which is 1.25

N = 400(1.25^t)

t = 10

N = 100(1.25^10)

N = 3725.290298

Around 3725 people

8 0
3 years ago
How do u put 72 7/10 into decimal?
NNADVOKAT [17]

Answer:

72.7

Step-by-step explanation:

First multiply 72 by 10

because 72 is 72 10s, making it a whole number.

then add 720 (72 times 10) to 7.

then all of that over 10.

then just divide.

727/10

72.7

this is what you do for all mixed numbers like that one.

7 0
3 years ago
Read 2 more answers
A 9-pack of greeting cards costs $13.48. What is the unit price, rounded to the nearest cent
IgorLugansk [536]

Answer:

13.50

Step-by-step explanation:

this is the answer to this question

6 0
3 years ago
Read 2 more answers
Other questions:
  • the graph shows rate at which an oven preheats when turned on. what is the unit rate and what does it represent?
    8·2 answers
  • 10 to the power of 3 times N = 630. Wha this the value of N
    7·2 answers
  • You are asked to bake muffins for a breakfast meeting. Just as you are about to start making them, you get a call saying that th
    7·1 answer
  • Please help me......
    7·1 answer
  • The population of a city is 451,400. The population is expected to decrease at a rate of 3.2% each year. Which function equation
    8·2 answers
  • Read the following sentences from "The Third Bank of the River."
    7·1 answer
  • Base area of a room is 34m^2 and height of the room is 10m. Find the volume
    14·1 answer
  • Matthew earns $0.10 for each local newspaper he delivers twice a week. His brother earns $0.25 for delivering each Sunday newspa
    6·1 answer
  • 20 POINTS
    15·1 answer
  • Help plzzzz helppp heppppdidjjdhjrbrbfnd meeee
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!