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mrs_skeptik [129]
3 years ago
15

Explain how to use the associative property of multiplication to simplify the following expression and find the final value: (2

* 8) *5
please don't answer with files they don't work i will try to mark who ever get it correct brainliest
Mathematics
2 answers:
bekas [8.4K]3 years ago
8 0
The associative property of multiplication deals with moving the parentheses around different terms. The numbers remain in the same order. If you move the numbers’ order around, you’re using the commutative property. (They “commute” to a different place in the expression).

So 2(8 * 5) is regrouped and simplified
2(8 * 5) = 2(40) = 80
Diano4ka-milaya [45]3 years ago
6 0
(5*8)*2
(2*5)*8

They all equal 80.

Just switch the numbers in the numerical expression.
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This is my sisters homework please help
tankabanditka [31]

Answer: 12n crisp

Step-by-step explanation: you dont know n so you just put 12 with n next to it indicating 12 times n

3 0
3 years ago
-3.75+2(-4x+6.1)-3.25
Pani-rosa [81]

The value of x is 0.65

<u>Step-by-step explanation:</u>

This solution is given by solving the given problem using BODMAS rule.

This means that the steps to be followed to find the solution should be in the order of BODMAS rule.

B- Bracket, O- of, D- Division, M- Multiplication, A- Addition, S- Subtraction.

This rule states that the 1st operation must be done for Brackets.

⇒ -3.75+2(-4x+6.1)-3.25 = 0

⇒ -3.75 -8x + 12.2 -3.25 = 0

The addition operation should be performed next and then followed by subtraction.

⇒ -8x -7+ 12.2 = 0

<u>To find the value of x :</u>

Keeping the x term alone on one side and moving the constants on other side,

⇒ -8x = -12.2 + 7

⇒ -8x = -5.2

⇒ x = 5.2/8

⇒ x = 0.65

3 0
3 years ago
Help plz thx thx for the help​
lbvjy [14]

Answer:

A is irrational and I believe the rest are rational

7 0
3 years ago
Geometric mean for 12 and 3
Tom [10]
Hey there! :D

To find the geometric mean, you multiply the numbers and then find the square root. 

12*3= 36

The square root of 36 is 6.

The geometric mean is 6. 

I hope this helps!
~kaikers
8 0
3 years ago
Read 2 more answers
What is the slope of the line that passes through (-2,-3) and (1,1)
kramer
Slope:
m =  \frac{y _{2} - y _{1}}{x_{2} - x _{1}}

Slope is rise over run. It is a ratio of the amount of the y-axis over the amount of x-axis. So, now assign the first group of numbers, (-2,-3) as 1; then the second group, (1,1) as 2. Like this:
first \: group(x _{1} ,y _{1}) \\ second \: group(x_{2},y_{2})
Notice the subscripted numbers designate the group number. Next, plug in the numbers and do the math.
\frac{1 - ( - 3)}{1 - ( - 2)}  =  \frac{1 + 3}{1 + 2}  =  \frac{4}{3}
So, the slope, m, is equal to four thirds.

m = 4/3
6 0
3 years ago
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