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scoundrel [369]
3 years ago
8

Which shows the use of the commutative property?

Mathematics
2 answers:
Murrr4er [49]3 years ago
5 0

Answer:

C. 3n+7=7+3n

Step-by-step explanation:

I got it right on my unit test! :)

Since the other person just got

it for points I decided

too answer

it myself you’re welcome!

Crank3 years ago
4 0

Answer:

the answer is C. 3n + 7 = 7 + 3n

Step-by-step explanation:

I had the same question on a quiz  

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Point M is the midpoint of AB . Through point M a line segment XY is drawn, so that both XA and YB are perpendicular to AB . Pro
GaryK [48]

Answer:

See the proof below

Step-by-step explanation:

Let the line AB be a straight line on the parallelogram.

A dissection of the line (using the perpendicular line X) gives:

AY ≅ BX

Another way will be using the angles.

The angles are equal - vertically opposite angles

Hence the line  AY ≅ BX (Proved)

8 0
3 years ago
Read 2 more answers
Gabrielle's age is two times Mikhail's age. The sum of their ages is 81. What is Mikhail's age?
Darya [45]

Answer:

27

Step-by-step explanation:

       Let <em>g </em>be Gabrielle's age and <em>m </em>be Mikhail's age.

       We can turn the statements the problem gives us into mathematical expressions to help us solve.

       Gabrielle's age is two times Mikhail's age:

                      <em>g </em>= 2<em>m</em>

       The sum of their ages is 81:

                      <em>g </em>+ <em>m </em>= 81

       This gives us a system of equations that will allow us to solve for Gabrielle's age.

<em>g </em>+ <em>m </em>= 81

(2<em>m</em>)<em> </em>+ <em>m </em>= 81

3<em>m </em>= 81

<em>m</em> = \frac{81}{3}

<em>m </em>= 27

       If we need to solve for Gabrielle's age, we can do the following.

<em>g </em>= 2<em>m</em>

2(27)<em> </em>= <em>g</em>

54 = <em>g</em>

g = 54

Mikhail's age is 27.

Gabrielle's age is 54.

8 0
2 years ago
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CAN SOMONE HELP ME REAL QUICK AND EXPLAIN STEP BY STEP ( NO BIG WORDS PLS?) Lol but MY TEACHER ISNT HELPING AND EXPLAINING WELL
zavuch27 [327]

Answer:

why

Step-by-step explanation:

7 0
3 years ago
Identify a and b in the binomial expression (2x3 + 3y2)7.​
Shkiper50 [21]

\text{Hey there!}

\text{Distribute the value of 7 in each of your terms}

\text{(2x}^3+\text{3y}^2)(7)

\text{2x}^3\times7=\text{14x}^3

\text{3y}^2\times7=\text{21y}^2

\text{We cannot combine like terms because they AREN'T any in this equation}

\boxed{\boxed{\bf{Answer:14x^3+21y^2}}}\checkmark

\text{Good luck on your assignment and enjoy your day!}

~\frak{LoveYourselfFirst:)}

8 0
3 years ago
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Factor the expression completely <br> -15t-6
Tema [17]
In order to factor this, we will need to take something out to get it to factor. Lets take out a greatest common factor, in this case our greatest common factor will be 3.
We will then write it as:

-3(5t+2) 
8 0
3 years ago
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