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
maks197457 [2]
3 years ago
14

What is the sum of the polynomials?

Mathematics
1 answer:
Mamont248 [21]3 years ago
8 0

the sum of polynomials is 3x^{2} + 6x + 4

Step-by-step explanation:

Question:

(6x+7+x^{2}) + (2x^{2} - 3)

<em>Step 1: Open the bracket according to BODMAS rule</em>

6x+7+x^{2} + 2x^{2} - 3

<em>Step 2: Arrange</em>

x^{2}[/tex] + 2x^{2} + 6x + 7 - 3

<em>Step 3: Simplify</em>

3x^{2} + 6x + 4

Therefore, the sum of polynomials is 3x^{2} + 6x + 4

<u />

Keyword: polynomial

Learn more about polynomial at

  • brainly.com/question/12700460
  • brainly.com/question/1414350

#LearnwithBrainly

You might be interested in
How can using properties help you to simplify expressions?
alina1380 [7]
Well,properties can help you because you can shorten or make an equation more understandable, like using distributive property in the example 2(5x-3), you can rewrite it as 10x-6. See?
4 0
2 years ago
Estimate 15% as a fraction in its simplest form.
Anton [14]

Answer:

\frac{3}{20}

Step-by-step explanation:

15\%  =  \frac{15}{100}

So,

\frac{15 \div 5}{100 \div 5}  =  \frac{3}{20}

<em>hope</em><em> </em><em>this</em><em> </em><em>helps</em><em> </em><em>you</em><em>.</em>

5 0
3 years ago
A metal cylinder can with an open top and closed bottom is to have volume 4 cubic feet. Approximate the dimensions that require
Aleksandr-060686 [28]

Answer:

r\approx 1.084\ feet

h\approx 1.084\ feet

\displaystyle A=11.07\ ft^2

Step-by-step explanation:

<u>Optimizing With Derivatives </u>

The procedure to optimize a function (find its maximum or minimum) consists in :

  •  Produce a function which depends on only one variable
  •  Compute the first derivative and set it equal to 0
  •  Find the values for the variable, called critical points
  •  Compute the second derivative
  •  Evaluate the second derivative in the critical points. If it results positive, the critical point is a minimum, if it's negative, the critical point is a maximum

We know a cylinder has a volume of 4 ft^3. The volume of a cylinder is given by

\displaystyle V=\pi r^2h

Equating it to 4

\displaystyle \pi r^2h=4

Let's solve for h

\displaystyle h=\frac{4}{\pi r^2}

A cylinder with an open-top has only one circle as the shape of the lid and has a lateral area computed as a rectangle of height h and base equal to the length of a circle. Thus, the total area of the material to make the cylinder is

\displaystyle A=\pi r^2+2\pi rh

Replacing the formula of h

\displaystyle A=\pi r^2+2\pi r \left (\frac{4}{\pi r^2}\right )

Simplifying

\displaystyle A=\pi r^2+\frac{8}{r}

We have the function of the area in terms of one variable. Now we compute the first derivative and equal it to zero

\displaystyle A'=2\pi r-\frac{8}{r^2}=0

Rearranging

\displaystyle 2\pi r=\frac{8}{r^2}

Solving for r

\displaystyle r^3=\frac{4}{\pi }

\displaystyle r=\sqrt[3]{\frac{4}{\pi }}\approx 1.084\ feet

Computing h

\displaystyle h=\frac{4}{\pi \ r^2}\approx 1.084\ feet

We can see the height and the radius are of the same size. We check if the critical point is a maximum or a minimum by computing the second derivative

\displaystyle A''=2\pi+\frac{16}{r^3}

We can see it will be always positive regardless of the value of r (assumed positive too), so the critical point is a minimum.

The minimum area is

\displaystyle A=\pi(1.084)^2+\frac{8}{1.084}

\boxed{ A=11.07\ ft^2}

8 0
2 years ago
Will give brainliest or whatever it’s called
Softa [21]

C is the right answer.

hope it helps...

8 0
1 year ago
Read 2 more answers
Can you also give a reason for each question. Ty!​
stich3 [128]
Girl we need to see the figures like the pictures on the side
7 0
3 years ago
Other questions:
  • 40 POINTS IF YOU GIVE ME THE FULL RIGHT ANSWERS
    6·2 answers
  • 44 is 55% of what number?
    6·2 answers
  • What is the product of 2.5 x 10 power of -15 and 3.9 x 10 to the power of 26
    15·1 answer
  • For each fraction if you multiply both the numerator and the denominator by the same number is the resulting fraction equivalent
    12·1 answer
  • Which table shows a linear function?
    10·1 answer
  • Which is closest to the mean number ??
    15·1 answer
  • Why is measuring a circle different for measuring a polygon
    8·2 answers
  • What is 78 x 9679-L? <br><br> lego yoda is better than baby yoda
    8·2 answers
  • Plz help me due in 5 min
    8·1 answer
  • Please help me on this will give you brainliest
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!