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
Neko [114]
3 years ago
8

Expand and simplify (4 + √7)(2 - √7).

Mathematics
1 answer:
marusya05 [52]3 years ago
6 0

Answer:

1 - 2√7

Step-by-step explanation:

( 4 + √7)(2 - √7)

Open the brackets with

( 4+ √7)

= 4( 2 - √7) + √7(2 - √7)

= 8 - 4√7 + 2√7 - √49

= 8 ( -4 + 2)√7 - √49

= 8 - 2√7 - 7

= 8 - 7 - 2√7

= 1 - 2√7

You might be interested in
PLEASSEEE HELP AS FAST AS YOU CAN!!! I put the picture. 10 points!!
iogann1982 [59]

Answer:

<h2>x = 129</h2>

Step-by-step explanation:

3 0
3 years ago
How many pounds is 2.7 kilograms?
vampirchik [111]
The answer is 5.95248
6 0
3 years ago
a wildlife manager determines that the function y=200x1.07* represents the deer population at a state park x years after the pop
Kobotan [32]

Answer:

Table:

0,200

4, 262

8,344

12, 450

Population after 12 years is 450 deer

Initial population is 200 deer.

Step-by-step explanation:

You take the x in the table and plug it in as an exponent so you will need a calculator or multiple the 1.07 by that many times so 1.07 12 times multipled by itself. and the initial is 0 years so anything to the exponent of 0 is 1 so that show i got 200 for the x=0

8 0
2 years ago
207,567 to the nearest hundred thousand
Nezavi [6.7K]
The hundred thousands place is the 2. Since the place below that is 0, it rounds down.
200,000
6 0
3 years ago
Read 2 more answers
HELPPP <br> I HATE LINKS
scZoUnD [109]

Pretty sure it´s 12.25

61.25 /5=12.5

you can check this by doing 12.5 x 5 ; 15 or 30 and you´ll get the same product in monthly earned

8 0
3 years ago
Other questions:
  • Tentukan himpunan penyelesaian dari persamaan berikut:<br> 3y+15=5y-1
    13·1 answer
  • The price of 2 pears and 6 apples is $14. the price of 3 pears and 9 apples is $21. find the price for one pear and one apple
    13·1 answer
  • Classify each number as rational or irrational.<br> 4.27 ,0.375 ,0.232342345...<br> V62 ,13/1
    9·1 answer
  • it takes john 30minutes to walk 15 blocks to the library as this rate how many blocks can he walk in one minutes
    9·2 answers
  • Does 5x-3y=-7<br> 10x-6y=-14 have one solution or one solution or infinity solutions
    11·1 answer
  • How do I solve this?
    15·1 answer
  • I need help! plz<br><br><br><br>I'm confuesed​
    7·1 answer
  • Here is an identity.
    12·2 answers
  • Find the length of the missing side, rounded to the nearest-tenth.<br> 11<br> 9
    9·1 answer
  • Help.............???!!!
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!