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
Alex_Xolod [135]
2 years ago
7

Which value must be added to the expression x2 12x to make it a perfect-square trinomial?

SAT
2 answers:
Anika [276]2 years ago
5 0

Answer:

I'm guessing the question is:

Which value must be added to the expression x^2+12x to make it a perfect-square trinomial?

If so, the answer is 36

If not, sorry...

Explanation:

You can get the answer by doing (-b/2a)^2. By doing this you get the c term of a perfect square trinomial.

Steps:

1) (b/2a)^2

2) (12/2[1])^2

3) (12/2)^2

4) (6)^2

5) 36

valentinak56 [21]2 years ago
3 0

Answer:

"The correct answer is 36.

A perfect square trinomial can be factored into this form: (x+a)^2Note that (x+a)^2 = x^2 + (2a)x + a^2To find the missing number, we should take the 12 (in the 12x term) and divide it by two to get 6. This number squared will be the missing number at the end of the trinomial.

Let's check that this is the correct answer.(x+6)^2 = x^2 + 12x + 36Indeed, 36 is the correct answer."

Explanation:

You might be interested in
A bakery offers a sale price of $3. 50 for 4 muffins. What is the price per dozen.
Musya8 [376]

Answer:

$10.50

Explanation:

all you have to do is 3.50 x 3

8 0
3 years ago
Why do we need to use or edit content in wikis brainly
olganol [36]
Because the words hee to be chosen correctly
4 0
2 years ago
What maximum amount of ammonia in kilograms can be synthesized from 5.22 kg of h2 and 31.5 kg of n2?
Fiesta28 [93]

Consider the unbalanced reaction,

H₂ + N₂   ===>   NH₃

Balance it to get

3 H₂ + N₂   ===>   2 NH₃

This tells you that for every 3 moles of H₂ and 1 mole of N₂ among the reactants, 2 moles of NH₃ are produced.

Look up the molar masses of each component element:

• H : 1.008 g/mol     ===>   H₂ : 2.016 g/mol

• N : 14.007 g/mol     ===>   N₂ : 28.014 g/mol

• NH₃ : 17.031 g/mol

Convert the given mass to moles for each reactant:

• H₂ :

(5.22 kg) × (1000 g/kg) × (1/2.016 mol/g) ≈ 2589.29 mol

• N₂ :

(31.5 kg) × (1000 g/kg) × (1/28.014 mol/g) ≈ 1124.44 mol

Now,

(2589.29 mol H₂) : (1124.44 mol N₂) ≈ (2.30 mol H₂) : (1 mol N₂)

so that the amount of N₂ consumed is

(2589.29 mol H₂) × (1 mol N₂) / (3 mol H₂) ≈ 863.095 mol N₂

leaving an excess of about 261.343 mol N₂, and producing

(2589.29 mol H₂) × (2 mol NH₃) / (3 mol H₂) ≈ 1726.19 mol NH₃

Convert this to a mass :

(1726.19 mol) × (17.031 g/mol) × (1/1000 kg/g) ≈ 29.3987 kg

So, up to 29.4 kg of NH₃ can be synthesized.

4 0
3 years ago
High-context cultures emphasize nonverbal messages. true or false
lara [203]
The Answer Is True. High-context cultures emphasize nonverbal messages. 
6 0
3 years ago
Read 2 more answers
What are actions or behaviors that may have (or may not have) taken place before someone dies?
kodGreya [7K]

a o think sorry if you get it wrong

6 0
3 years ago
Read 2 more answers
Other questions:
  • What is the conductivity of lead as compared to silver?
    5·2 answers
  • Which of the following people is making a decision based on opportunity cost?
    14·2 answers
  • For an object that is speeding up at a constant rate in the positive direction,
    9·2 answers
  • PLEASE HELP ME WHICH 2 DETAILS FROM THE TEXT BEST SUPPORTS THE ANSWER TO PART A 15 POINTS PLSSSSSSSSSS
    11·1 answer
  • Michelle's family invited her friend Jerome's family over to enjoy pizza and watch football. Michelle's family ate 2 7/8 pizzas.
    12·1 answer
  • Can someone help pls
    14·1 answer
  • Which choice does the author explicitly cite as
    11·1 answer
  • Which shows one way to determine the factors of x3 – 12x2 – 2x 24 by grouping?
    12·1 answer
  • Yesterday, the movie theater brought in $1,440 in ticket sales and $295. 25 in food sales. Today, ticket sales were three-fourth
    9·1 answer
  • Strictly speaking pure competition is relatively rare. then why do we study it
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!