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Alex
3 years ago
11

Use the commutative and associative properties of multiplication to write an expression equivalent to (4⋅5)⋅3.

Mathematics
1 answer:
Darina [25.2K]3 years ago
4 0
Commutaive property says
ab=ba or expanded to say
abc=cba

associative peropty =
a(bc)=(ab)c

so using that
first mix them up knowing that we can move the parenthaseese
all possible equivelnt ones are
4*(5*3)
(3*5)*4
3*(5*4)
(3*4)*5
3*(4*5)
 
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Step-by-step explanation:

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Now to find the variance of the data set by using below formular

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[(33-58.7)² +(29-58.7)²+( 97-58.7)²+( 56-58.7)²+( 26 -58.7)²+(78-58.7)²+( 83 -58.7)²+(74-58.7)²+( 65-58.7)²+( 47 -58.7)²+(58 -58.7)²]/10

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