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Sergio [31]
3 years ago
11

What property is shown in the equation below? 3a*9 c= 27ac?

Mathematics
2 answers:
Ad libitum [116K]3 years ago
8 0

Answer:

Identity property of multiplication

Step-by-step explanation:

Zepler [3.9K]3 years ago
7 0

Answer:

Option B) Commutative property of multiplication

Step-by-step explanation:

We are given the following information in the question:

(3a)\times (9c) = 27ac

We have to find the property of multiplication used in the above expression:

The multiplication is shown below:

(3a)\times (9c) = 27ac\\=(3\times a)\times (9\times c)\\= 3\times (a\times 9)\times c\\= 3\times (9\times a)\times c\\=(3\times 9)\times a\times c\\=27ac

We used the commutative property of multiplication.

Commutative property states that two numbers can be multiplied in any order

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Name each polynomial by degree and number of terms .
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Answer:

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2 years ago
Area of ice rink is 404 sq yes what is perimeter
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3 years ago
Need help with inscribed angles If M
Bogdan [553]

Given:

In the given circle O, BC is diameter, OA is radius, DC is a chord parallel to chord BA and m\angle BCD=30^\circ.

To find:

The m\angle AOB.

Solution:

If a transversal line intersect two parallel lines, then the alternate interior angles are congruent.

We have, DC is parallel to BA and BC is the transversal line.

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m\angle OBA=m\angle BCD

m\angle OBA=30^\circ

In triangle AOB, OA and OB are radii of the circle O. It means OA=OB and triangle AOB is an isosceles triangle.

We know that base angles of an isosceles triangle are congruent.

\angle OAB\cong \angle OBA      [Base angles of an isosceles triangle]

m\angle OAB=m\angle OBA

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In triangle AOB,

m\angle OAB+m\angle OBA+m\angle AOB=180^\circ

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3 years ago
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Answer:

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4) Add 2x to both sides:

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6) Divide both sides by 9:

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