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ivolga24 [154]
3 years ago
12

Are these expressions equivalent?(-2.6) + (-2.9) + (-7.1) and – (2.6+2.9+7.1) Why or why not?

Mathematics
2 answers:
Vilka [71]3 years ago
7 0

Answer:

Yes

Step-by-step expiation:

Negative plus negative equals a positive but you add the negative to a positive the number becomes a negative. and the other side everything is

positive in parentheses followed by a negative so they are equal.

Alika [10]3 years ago
7 0

yes, that is an examle o the distributive proeprty

i we take the 2nd phrase

-(2.6+2.9+7.1)=-1(2.6+2.9+7.1)=-1(2.6)-1(2.9)-1(7.1)=-(2.6)-(2.9)-(7.1)=(-2.6)+(-2.9)+(-7.1)


yes because of distributive property

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muminat

Answer:

54

4 x 5 = 20

20 + 34 = 54

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3 years ago
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Gekata [30.6K]

Answer:

The inequality which represents the graph is y ≤ -2x + 1 ⇒ A

Step-by-step explanation:

To solve the question you must know some facts about inequalities

  • If the sign of inequality is ≥ or ≤, then it represents graphically by a solid line
  • If the sign of inequality is > or <, then it represents graphically by a dashed line
  • If the sign of inequality is > or ≥, then the area of the solutions should be over the line
  • If the sign of inequality is < or ≤, then the area of the solutions should be below the line

Let us study the graph and find the correct answer

∵ The line represented the inequality is solid

∴ The sign of inequality is ≥ or ≤

→ That means the answer is A or B

∵ The shaded area is the area of the solutions of the inequality

∵ The shaded area is below the line

∴ The sign of inequality must be ≤

→ That means the correct answer is A

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3 0
3 years ago
Combina los términos semejantes<br> -16 + 8x +20x -5y
mrs_skeptik [129]
28x+-21 you simplify them first
7 0
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On Earth, 1kg=9.8N=2.2lbs. On the moon, 1kg=1.6N=0.37lbs
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A.50*9.8
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Two angles of a triangle measure 57 and 46. What is the measure of the largest exterior angle of the triangle?
irina [24]

Answer:

A. 103°

Step-by-step explanation:

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This shows that the third angle in the triangle is 180°-103°=77°

Therefore the largest exterior angle is 180°-77°=103°

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