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Bess [88]
3 years ago
11

A rectangular prism has a height of 15 centimeters and a width of 6 centimeters. The surface area of the prism is 684 square cen

timeters. What is the length of the prism?
A. 24 cm
B. 12 cm
C. 9 cm
D. 6 cm

Mathematics
1 answer:
Kazeer [188]3 years ago
6 0
B. 12 cm

a= 2(hl x wl x hw)
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C. 20 cm

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Which expression illustrates the associative property of addition? (3 19) â€"" 12 = (3 12) â€"" 19 3 (19 â€"" 12) = 3 (
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Associative property of addition changing the grouping of add once does not change the sum. The option 3 illustrates the associative property of addition. Thus this is the correct option.

<h3>Given-</h3>

The options are given in which the associative property of the addition has to be found.

<h3>Associative property </h3>

Associative property of addition is the changing the grouping of add once does not change the sum.

  • Option 1-

(3+19)-12=(3+12)-19

In the above option with changing the bracket the sign of 19 and 12 is changed. This will affect the result of the addition. Hence, option 1 is incorrect.

  • Option 2-

3+(19-12)=3+(19+12)

In this case, the sign changed. Thus the result of the sum will be different. Hence the option 2 is incorrect.

  • Options 3-

(3+19)-12=3+(19-12)

In this case, brackets are changed but the sign is not changed. Thus the result will be the same. Hence, option 3 illustrates the associative property of addition. Thus this is the correct option.

  • Option 4

3+(19-12)=3-(19+12)

In the above case, the sign changed and thus the result will also be changed. therefore option 4 is incorrect.

Hence, option 3 illustrates the associative property of addition. Thus this is the correct option

For more about the properties of the addition, follow the link below-brainly.com/question/1697317

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Answer: I’m pretty sure they are similar because they have the same interior degree.

Step-by-step explanation:

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