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musickatia [10]
4 years ago
9

What is the coefficient of the second term of the trinomial?​

Mathematics
1 answer:
Lyrx [107]4 years ago
7 0

Answer:

The coefficient of the 2nd term of trinomial is 18.

Step-by-step explanation:

You can expand in a faster way by using the formula, (a+b)² = a²+2ab+b² :

(3x+3)² = (3x)² + 2(3x)(3) + 3²

= 9a² + 18a + 9

OR

You can expand it by doing step by step :

(3x+3)² = (3x+3)(3x+3)

= 3x(3x) + 3x(3) + 3(3x) + 3(3)

= 9x² + 9x + 9x + 9

= 9x² + 18x + 9

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4 is 1/4 of what number? Plzzzzzz help
WARRIOR [948]

Answer:

16

Step-by-step explanation:

to reverse the division  meaning the fraction, we multiply 4 by 4:

4 times 4=16

to check, divide:

16/4=4

i hope this helps u pls give a brainliest and a thx ;)

8 0
3 years ago
A pair of dice is rolled. List the elements of sample space S. Let A denote the event “the sum is less than 5” and B the event “
Marina86 [1]
I don't know that answer
5 0
3 years ago
The equation y = 13x describes the amount of money Sarah earns, where x is the number of hours she works
enot [183]

Answer:

A) $14/hr B) Austin

Step-by-step explanation:

A)

If he earns $140 in 10 hours you can divide 140 by 10 to find out how much he makes per hour

B)

Sarah makes $13/hr which is $1 less than Austin

8 0
3 years ago
HELP PLEASE THANK YOU! :) 50 POINTS !!!!!!!1
a_sh-v [17]

Answer:  0.88

Step-by-step explanation:  

Let C is the event of drinking coffee, T is the event of drinking tea and M is the event of drinking milk.

Thus, when we make the Venn diagram of the given situation according to the given information,

Total number of people = 50

Number of people who like coffee, tea and milk = 19

Number of people who like coffee, tea but not milk = 16

Number of people who like coffee, milk but not tea = 2

Number of people who like tea, milk but not coffee = 5

Thus, the number of people who like tea only = Total people - (people who like coffee, tea but not milk + people who like coffee, tea and milk + the one who only like tea and milk but not coffee)

= 50 - ( 16 + 19 + 5) = 50 - 46 = 4

Thus, Total number of the person who like milk = 16 + 19 + 5 + 4 = 44

⇒ Probability that this person likes tea = \frac{\text{ Total person who like to drink milk}}{\text{ Total number of people}} = \frac{44}{50} = 0.88





3 0
4 years ago
83/10y-(38/11-11/4y)
IrinaK [193]

Answer:

I think 83 ÷ 10 and it said that it incorrect

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
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