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
KIM [24]
3 years ago
6

Perform the operation. (–2x2 – 2x + 1) + (-8x2 – 7)

Mathematics
1 answer:
yulyashka [42]3 years ago
8 0
The answer would be -26 - 2x
(-2*2 - 2x+1) + (-8*2-7)
-3 -2x + (-8*2-7)
-3-2x -23
-26 - 2x
You might be interested in
Four billion eight hundred sixty-four million As a decimal
hammer [34]

Answer:

4,864,000,000.00

Step-by-step explanation:

5 0
2 years ago
A store owner decided to collect data on his customers. On one day he observed:
Mnenie [13.5K]

Answer:

Johannes Gutenberg - Wikipediahttps://en.wikipedia.org › wiki › Johannes_Gutenberg

Johannes Gensfleisch zur Laden zum Gutenberg was a German goldsmith, inventor, printer, and publisher who introduced printing to Europe with his ...

Occupation: Engraver, ‎inventor‎, and printer‎

Born: Johannes Gensfleisch zur Laden zum G...

Died: February 3, 1468 (aged about 68); Mainz‎, ...‎

Known for: The invention of the movable-type ...

‎Early life · ‎Printing method with... · ‎Legacy · ‎References

People also ask

Step-by-step explanation:

6 0
2 years ago
Nonlinear Systems of Equations
zheka24 [161]

The square root and cube root identities are proved.

According to the statement

we have to find that the use of the square root identity (x − y)2 = x2 − 2xy + y2

And use of cube root identity a3 + b3 = (a + b)(a2 − ab + b2).

So, For this purpose, we know that the

A. Let us assume the two conditions.

So,

2x + 3y = 6  -(1)

4x + 7y = 8  -(2)

Here we use elimination method

So, Multiply 4 with (1) and 2 with (2)

8x + 12y = 24  

8x + 14y = 16  

Now eliminate x from these equations

-2y = 8

here y is -4.

and the x become

2x + 3y = 6  

2x -12 = 6

2x = 18

x = 9.

B. For the use of identity (x- y)^{2}  = x^{2} - 2xy + y^{2}

Let us assume a number 26 and 28 then fill it in the condition then

(28- 26)^{2}  = 28^{2} - 2(28)(26) + 26^{2}

Then

(28- 26)^{2}  = 784 - 1456 + 676

(28- 26)^{2}  = 4

And we have to prove the cube root identity then

The identity is

a^{3}  + b^{3}  = (a + b)(a^{2} - ab + b^{2})

Then let us assume the number 8 and 9 then

a^{3}  + b^{3}  = (a + b)(a^{2} - ab + b^{2})

8^{3}  + 9^{3}  = (8 + 9)(8^{2} - 8*9 + 9^{2})

8^{3}  + 9^{3}  = (17)(64 - 72 + 81)

8^{3}  + 9^{3}  = (17)(73)

8^{3}  + 9^{3}  = (1241)

Hence by this way we prove the square and cube root identities.

So, The square root and cube root identities are proved.

Learn more about square root and cube root here

brainly.com/question/661780

#SPJ1

3 0
1 year ago
The price of a USB flash drive increases to 5/4 of its original price . The new price is $25 . what was the original price ?
ohaa [14]
5/4 times originally price
5 0
3 years ago
Read 2 more answers
the market bought grapes $0.87 a pound and sold them for $1.09 a pound what percent was it increased rounded to the nearest tent
Afina-wow [57]
You use new over old
1.09
_____ then times that by
0.87. 100= 125.287356

Next put that to the nearest 10th which is 130%
7 0
3 years ago
Other questions:
  • What is the value of N?
    6·1 answer
  • What is the area of this Trapezoid with heghit 13 units
    12·1 answer
  • Two rectangles are similar one has a length of 12 cm and a width of 9 cm and other has a width of 8 cm find the length of the se
    11·1 answer
  • If $1995.00 is shared equally among 5 men, how much would each get?
    10·2 answers
  • What is the exponential form of 175
    12·1 answer
  • I need help pls help me
    10·1 answer
  • Find the value of x. A. 53–√ in B. 241−−√ in C. 55–√ in D. 9
    15·1 answer
  • What is the volume of the pyramid?<br> 8 in.<br> 7 in.<br> 6in.
    10·1 answer
  • Carter invested $3,900 in an account paying an interest rate of 3.9% compounded
    9·1 answer
  • Camille's birthday party will cost $32 if she invites 16 guests. How many guests can there be, at most, if Camille can afford to
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!