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natali 33 [55]
2 years ago
9

Please help theres two questions (-2x+8y-11)+(-3y-y+5)

Mathematics
1 answer:
SpyIntel [72]2 years ago
7 0

Answer:

a)  "Like terms" are terms whose variables (and their exponents such as the 2 in x²) are the same

8y, -3y and y are all likes terms because the variables are all y

b)

(-2x+8y-11)+(-3y-y+5)\\\\=-2x+8y-11-3y-y+5\\\\=-2x+(8y-3y-y)+(5-11)\\\\=-2x+4y-6\\\\=2(-x+2y-3)\\\\=-2(x-2y+3)

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Trava [24]

Answer: 46°

Step-by-step explanation:

90 - 44 = 46

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3 years ago
Math Please Help Make sure you explain your answer Thanks Have a blessed day!..
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Answer:

15 is a solutin but 9 is not

Step-by-step explanation:

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A square with one side length is represented by the expression 4(2x+3)+16+8x. Use the properties of operations to write three di
finlep [7]

Answer:

The other sides of the square are

8x+12+16+8x,(8x+8x)+(12+16) and 16x+28  

Step-by-step explanation:

Square:

  1. The all sides of a square equal.
  2. The sum of four angles is 360°.
  3. The diagonals bisect each other.
  4. The length of diagonals are equal.

Distributive property:

a(b+c)= ab+ac

Commutative property:

a+b= b+a

Like terms:

Like terms are terms that have the same variables and the power of the variable also same.

Given the length of the side is

=4(2x+3)+16+8x

=4.2x+4.3+16+8x [ Apply distributive property]

=8x+12+16+8x

=(8x+8x)+(12+16)   [ separating like terms]

=16x+28                [Adding like terms]

The other sides of the square are

8x+12+16+8x,(8x+8x)+(12+16) and 16x+28  

4 0
3 years ago
Two sides of a triangle measure 5 in. and 12 in. Which could be the length of the third side?
Airida [17]

Answer: 10.9

Step-by-step explanation:

You would use Pythagorean theorem:

5x5+12x12=c

5x5=25

12x12=144

Now, 25+144=169

Now find the square root of 169 which is 13 which isn't an answer choice, which means your prolly after a leg.

I assume 12 is the hypotenuse

A(squared)+5x5=12x12

A+25=144

144-25=119

Square root of 119=10.9

So I'm going to go with answer 10 in or 11 if you round.

6 0
3 years ago
If the diameter of a circle changes from 18 cm to 6 cm, how will the circumference change?
Butoxors [25]
I believe the correct answer is: B. But I’m not sure.
5 0
4 years ago
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