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
Alex73 [517]
3 years ago
10

Worth 25 points, giving brainiest to a quick and good answer.

Mathematics
1 answer:
vredina [299]3 years ago
7 0

Answer:


Step-by-step explanation:

Note that the quadratic formula has that "plus or minus" due to our taking the square root of some quantity.  No square root is involved in the two formulas you've posed.

I have two suggestions here:

1) Write " (x plus or minus y)^2 = x^ plus or minus 2 times xy + y^2 "  Note that a + on the left side corresponds to a + on the right side, and same with - .

2) Memorize these two formulas, which in most algebra textbooks you'll find in the section "special products and factoring."


You might be interested in
Read these sentences from the text.
chubhunter [2.5K]

Answer: Hi! I would say it is D because the other answers really don’t make sense. And the passages said that they were rated low for air quality.

Step-by-step explanation:

I hope this helps!

3 0
3 years ago
Multiply and reduce 4x^2/3*(9/x)3
Lilit [14]
So you follow the steps and i hope this will be easy for you .

4 0
3 years ago
13<br> Use the circle below for<br> questions 13-16.
Natasha_Volkova [10]

Answer:

NK=12

Step-by-step explanation:

x^2 +9^2=15^2

x^2+81=225

subtract 81

x^2=144

x=12

(This is only for number 13, I don't know the answer to 14-16)

3 0
3 years ago
What value could be added to 2/15 to make the sum greater than 1/2
Lera25 [3.4K]
1/2 - 2/15= 15-4/30 = 11/30  this means that if you were to add 11/30 to 2/15 is exactly equal to 1/2, to fully answer your question you can use any value above that like 12/30 (keep in mind you have to simplify) = 6/15 = 2/5. But then again your question says to add any number to make it greater than 1/2 so technically you could just add 100 or 200 or 1/2 to make the sum of it greater than one half
7 0
4 years ago
Find the area of a rectangular playground which is 21 3/4 yards long and 14 5/6 yards wide
Leni [432]
Multiply the 2 mixed numbers to get your answer because area is length times with .  I am not so sure but comment and tell me if you got it right or wrong.
3 0
3 years ago
Other questions:
  • A certain city has a 6% general sales tax. B) What will be the total cost of the purchase?
    11·1 answer
  • If triangle ABC is Congruent with triangle DEF the length of side DE is:
    6·2 answers
  • Determine the common ratio and find the next three terms of the geometric sequence. 9, 3, square root of 3, 3,...
    9·2 answers
  • Hello can you please help me posted picture of question
    7·2 answers
  • How do u do this?? What’s the answer???
    11·1 answer
  • If Mark uses 3 3/4 tablespoons of coffee to make 10 cups of coffee, how much would he need to make one cup of coffee?
    14·2 answers
  • Which line plot matches the set of data? <br> 61, 58, 57, 64, 59, 57, 64, 58, 56, 57.
    15·2 answers
  • Find the degree of the polynomial 9x^3 y6 + 2.5xy + x^2 .
    15·1 answer
  • Find the surface area of the cube. 5 ft S.A. = [?] ft? 5 ft A Hint: A cube has 6 square faces. Find the area of one face, then m
    6·1 answer
  • Question 1 ( point) A 64g sample of Germanium-66 is left undisturbed for 12.5 hours. At the end of that period, only 2.0g remain
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!