2 years ago

Please help these are not easy for me

Mathematics

1 answer:

Pavel [41]2 years ago

7 0

Answer:

12a^2 - 9a + 5

Step-by-step explanation:

(5a^2 - 6a - 4) - (-7a^2 + 3a - 9)

5a^2 + 7a^2 = 12a^2

-6a - 3a = -9a

-4 + 9 = 5

12a^2 - 9a + 5

You might be interested in

A phone company charges a monthly fee of $35.00 and $0.10 per text message. Bridget wants to pay less than $1200.00 total for he

stiv31 [10]

I believe the answer to your question is 11650

8 0

3 years ago

What is the value of x?<br><br> I NEED AN ANSWER ASAP!!

Pachacha [2.7K]

Answer:

x = 8

Step-by-step explanation:

Equilateral triangle : congruent angles

3(7x+4) = 180

21x + 12 = 180

21x = 180-12

x = 168/21

x = 8

6 0

2 years ago

What is the answer to -3x-5<-2 and what are the steps to actually finding the answer for it??

Andre45 [30]

Answer:

x > - 1

Step-by-step explanation:

Given

- 3x - 5 < - 2 ( add 5 to both sides )

- 3x < 3

Divide both sides by - 3, reversing the symbol as a result of dividing by a negative quantity

x > - 1

7 0

2 years ago

Plz help me i cant figure it out

Lelechka [254]

Answer:

35 degrees

Step-by-step explanation:

triangle is always a total of 180 degrees

5 0

3 years ago

Square root of 120 over the square root of 30. what is the following quotient.

Minchanka [31]

Answer:

21.90890230 or 21.91 (I'm assuming you're saying 120/ √30)

Step-by-step explanation:

3 0

1 year ago