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BigorU [14]
3 years ago
7

3y2+5y-(4y2+5)-8y2-(-7-3y2)

Mathematics
1 answer:
Goshia [24]3 years ago
6 0

Answer:

-6y^2+5y+2

Step-by-step explanation:

I'm assuming you want to simplify:

3y^2+5y-(4y^2+5)-8y^2-(-7-3y^2)

Distribute to get rid of the ( ):

3y^2+5y-4y^2-5-8y^2+7+3y^2

Put like terms together:

3y^2-4y^2-8y^2+3y^2+5y-5+7

Combine the like terms:

-6y^2+5y+2

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Find the distance between each pair of points
dolphi86 [110]

Answer: the correct answer is 20

Step-by-step explanation:

The formula for determining the distance between two points on a straight line is expressed as

Distance = √(x2 - x1)² + (y2 - y1)²

Where

x2 represents final value of x on the horizontal axis

x1 represents initial value of x on the horizontal axis.

y2 represents final value of y on the vertical axis.

y1 represents initial value of y on the vertical axis.

From the graph given,

x2 = - 7

x1 = 5

y2 = - 7

y1 = 9

Therefore,

Distance = √(- 7 - 5)² + (- 7 - 9)²

Distance = √(- 12²) + (- 16)²

= √(144 + 256) = √400

Distance = 20

5 0
3 years ago
A stack of books is 21 inches tall. Each book is 1 3/4 inches. How many books are there?
Maru [420]
There are twelve books
3 0
3 years ago
Read 2 more answers
What is the answer to 30=-(7-x)?
Lemur [1.5K]

Step-by-step explanation:

x =  \frac{30}{7}

6 0
3 years ago
Read 2 more answers
What two whole numbers is 29−−√ between?: 3 and 4 4 and 5 5 and 6 6 and 7
jolli1 [7]

The two whole numbers are 5 and 6 ⇒ 3rd answer

Step-by-step explanation:

To prove that a square root number lies between which two consecutive integers do that

  • Find a square number less than the number under the root
  • Find a square number greater than the number under the root
  • Find the square root of the square numbers, they will be the two integers that the root lies between them

∵ The number is \sqrt{29}

- Find a square number less than 29

∵ 25 is a square number

∵ 25 is less than 29

- Find a square number greater than 29

∵ 36 is a square number

∵ 36 is greater than 29

∴ 25 < 29 < 36

- Take √ for each number

∴ \sqrt{25} < \sqrt{29} < \sqrt{36}

∵ \sqrt{25}  = 5

∵ \sqrt{36}  = 6

∴ 5 <  \sqrt{29}  < 6

The two whole numbers are 5 and 6

Learn more:

You can learn more about the numbers in brainly.com/question/9621364

#LearnwithBrainly

8 0
4 years ago
¿Se pueden reducir términos semejantes en la expresión? y +3x +4y+x+3y+2x. ¿Por qué?
ludmilkaskok [199]

Answer:

8y + 6x

Step-by-step explanation:

Combine like terms

   y + 3x +4y + x + 3y + 2x

=  (y + 4y + 3y) + ( 3x + x + 2x)

=    8y + 6x

6 0
3 years ago
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