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Alex
3 years ago
15

Please help ill give brainliest, explain the answer too please

Mathematics
1 answer:
LiRa [457]3 years ago
8 0

Answer:

4x^2+3x+4

Step-by-step explanation:

3x^2+2x+3+x^2+x+1=4x^2+3x+4

Please give me brainliest.

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Which expression would be easier to simplify if you used the commutative property to change the order of the numbers?
Cerrena [4.2K]

Answer: A. 30+(-12)+70

Step-by-step explanation:

Commutative property of addition is given by : a+b = b+a , where a and b can be any expression of real numbers.

It basically changes the order of the so that simplification of any expression becomes easier.

In A. we use this property as

30+(-12)+70 = 30+[(-12)+70]

= 30 + [70+(-12)]  [we switched order of (-12) and 17]

= 30+70-12

= 100-12

= 88

The rest of the expression already arranged accordingly, there is no need to apply commutative property to change the order of the numbers.

So the correct option is A. 30+(-12)+70.

3 0
3 years ago
Mrs .Thomas has $71.00 to purchase bottles of juice for her class. If the bottles of juice cost $3.55 each ,how many bottles can
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Answer:

20 Bottles

Step-by-step explanation:

71.00 ÷ 3.55 = 20 [ I hope you understand! ]

8 0
2 years ago
Read 2 more answers
4. Castles and Coasters charges $12 to get
Vlad1618 [11]

20+x = 12+2x is the answer and x=8

5 0
3 years ago
Which set of values could be the sides lengths of a 30-60-90 triangle
Maslowich
Hello,

Let's assume a the hypotenuse

b/a=sin 30°==>b=a/2

c/a=cos 30°==>c=√3 / 2 *a

(√3/2 a, a/2,a) are the sides of the triangle.


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Can someone help me divide fractions?
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