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
Veronika [31]
3 years ago
13

Find the sum 12x^2+9x^2

Mathematics
1 answer:
katen-ka-za [31]3 years ago
5 0
Let's simplify step-by-step.
<span><span>12<span>x^2</span></span>+<span>9<span>x^2
</span></span></span>Combine Like Terms:
<span>=<span><span>12<span>x^2</span></span>+<span>9<span>x^2
</span></span></span></span><span>=<span>(<span><span>12<span>x^2</span></span>+<span>9<span>x^2</span></span></span>)
</span></span><span>=<span>21<span>x^<span>2</span></span></span></span>
You might be interested in
the perimeter of a rectangular garden is 52 feet the length of the garden is 4 feet less than twice the width what is the width
777dan777 [17]

The width would be 10ft and the length would be 16ft

when you multiply 10 by 2 and 16 by 2 you get 20 and 32 and when those are added it gets 52

Hope that helps

If you have any questions leave a comment

7 0
3 years ago
Evaluate -1-3-(-9)+(-5)
babunello [35]

To evaluate this expression, we need to remember that subtracting a negative number is the same as adding a positive number, and that adding a negative number is the same as subtracting a positive number. Using this knowledge, let's begin to simplify the expression below:

-1 - 3 - (-9) + (-5)

Because addition of a negative number is the same as subtraction of a positive number, we can change + (-5) to -5, as shown below:

-1 - 3 - (-9) - 5

Next, because we know that subtracting a negative number is the same as adding a positive number, we can change - (-9) to + 9, as shown below:

-1 - 3 + 9 - 5

Now, we can subtract the first two terms and begin to evaluate our expression:

-4 + 9 - 5

Next, we can add the first two numbers of the expression:

5 - 5

Now, we can subtract our last two numbers, which gives us our answer:

0

Therefore, your answer is 0.

Hope this helps!

3 0
3 years ago
Which answer describes the graph of the system of equations?
Vladimir [108]

Answer: The point of intersection is (0,4).

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
Which measurement is closest to the volume of the cone in cubic inches? 6in 16 in
Nookie1986 [14]

Answer:

it problely 16 is close

Step-by-step explanation:

it dipens where the numeber is place at

4 0
3 years ago
Please help I’ll give brainliest
damaskus [11]
The piecewise function all the way to the left (x + 3) should have an ending point shaded in. [At x = -2] The next function ((x^2) -1) should have both ending points left unshaded. Finally, the logarithm function should have a shaded in starting point [At x = 1] and should have an unshaded ending point at x = 3.
6 0
3 years ago
Other questions:
  • PLEASE ANSWER + BRAINLIEST!!<br><br> Factor completely.<br><br> 4k - 20k^9 =<br><br> 3b^2 - 108 =
    8·1 answer
  • What effect does nuclear radiation have on atoms?
    13·2 answers
  • A pentagonal prism has a volume of 448 cm3. If the height of the prism is 7 cm, what is the area of the base?
    7·2 answers
  • Mr. Stanton bought 121 feet of rope to repair a rope bridge. The ratio of the two pieces that he needs from the length he bought
    13·2 answers
  • Please help AS LEVEL c2 tell me how to work out
    14·1 answer
  • Least comun multiple 6 and 8
    12·2 answers
  • 2x+5y=-55 y=3x+6 What is the solution
    6·2 answers
  • Trigonometry
    14·1 answer
  • What is the domain of this function?
    12·1 answer
  • I really need this answer ASAP! Please answer correctly! No links please.
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!