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
goldfiish [28.3K]
3 years ago
6

Add: (3x2 - 5x + 6) + (9 - 8x - 4x2)

Mathematics
2 answers:
svetlana [45]3 years ago
7 0

Answer: E) -x^2-13x+15 .

Step-by-step explanation:

To add : (3x^2 - 5x + 6) + (9 - 8x - 4x^2)

=3x^2 - 5x + 6+ 9 - 8x - 4x^2

This can be re-written as :

3x^2-4x^2-5x-8x+6+9

Combine like terms as

=(3-4)x^2-(5+8)x+15\ \ [\because (-)(+)=(-)]\\\\=-x^2-13x+15

Therefore, (3x^2 - 5x + 6) + (9 - 8x - 4x^2)=-x^2-13x+15

Hence, the correct option is E) -x^2-13x+15 .

Stolb23 [73]3 years ago
4 0
Add: (3x2 - 5x + 6) + (9 - 8x - 4x2)
The givens should be arranged first before we can start answering.
    3x2 - 5x + 6 plus
   -4x2 - 8x + 9
= -x2  - 13x +15
Therefore, the answer to the question is E) -x2  - 13x +15

You might be interested in
WILL GIVE BRAINLIST!
Oxana [17]

Answer:

Answer not obvious

Step-by-step explanation:

heehehee

4 0
2 years ago
What fraction of an hour is 120 seconds?
sattari [20]
There are 3600 seconds in one hour. 
120 seconds is 2 minutes
therefore, the fraction is \frac{2}{60}
6 0
3 years ago
Read 2 more answers
The measures of the angles of a triangle are shown in the figure below. Solve for x.
mote1985 [20]

Answer:

X=22

Step-by-step explanation:

In a triangle all the angles add up to 180 so you add them all up and get      6x-21+69=180

                  +21

                 -69

  6x=132 132/6= 22

4 0
3 years ago
How do you do 69% as a fraction? Please show work.​
MakcuM [25]
69% is the same as .69, which is the same as 69/100
7 0
3 years ago
Read 2 more answers
11. How many different ways can the 16 numbered pool balls be placed in a line on the pool table?
nikklg [1K]

Answer:

The number of ways are 16! or 20,922,789,888,000.

Step-by-step explanation:

Consider the provided information.

We need to determine the number of different ways 16 numbered pool balls be placed in a line on the pool table.

For the first place we have 16 balls.

For the second place we have 15 balls left.

Similarly for the third place we have 14 balls as two balls are already arranged and so on.

Or we can say that this is the permutation of 16 things taking 16 at a time.

Thus the number of ways are: 16! or  ^{16}P_{16}

16!=16\times15\times14\times13......\times2\times1=20,922,789,888,000

Hence, the number of ways are 16! or 20,922,789,888,000.

7 0
3 years ago
Other questions:
  • Match the values based on parallelogram ABCD, shown in the figure. Tiles length of value of value of Pairs 56 arrowBoth 4 arrowB
    10·1 answer
  • The function p(t) represents the population of a certain town t years after 2010.
    10·2 answers
  • 1 - 1<br> ---- = ? <br> 2 <br> What is the answer?
    12·2 answers
  • Express the following English phrase using an algebraic expression. The quotient of some number y and 6 increased by the product
    13·1 answer
  • Is x = 22 a solution to this inequality?<br> x-1&lt;0<br> Type yes or no.<br> arnell
    9·2 answers
  • Perform the indicated operation and write the result in the form a + bi i^100
    13·1 answer
  • Please help out! <br>2x- b = 10​
    7·1 answer
  • F(x)=−x−2, find f(-6)f(−6)
    9·1 answer
  • What is the rate of change from b to d? Group of answer choices 15/37 37/15 23/32 2/8
    6·1 answer
  • Miranda invited 117 guests to a charity event. Miranda is renting tables that seat 9 guests at each table. If each table costs ​
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!