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3 years ago

Simplify: -0.8b + 4.1c -(-3.2b) - 0.1c

Mathematics

2 answers:

Mars2501 [29]3 years ago

8 0

Answer:

$2.4b+4c$

Step-by-step explanation:

Simplify:

$-0.8b+4.1c-(-3.2b)-0.1c$

then;

$-0.8b+4.1c+3.2b-0.1c$

Like terms are those which have same variable to the same power.

Combine like terms;

$2.4b+4c$

Therefore, the simplified form of the given expression is, $2.4b+4c$

umka21 [38]3 years ago

3 0

-0.8b+4.1c-(-3.2b)-0.1c
-(-3.2b)= 3.2b
4.1c-0.1c=4c
-0.8b+4c+3.2b
-0.8b+3.2b=2.4b

4c+2.4b

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c) This last case the histogram is not symmetrical and the data seems to be skewed.

Step-by-step explanation:

For this case we have the following data:

(a)data = c(7,13.2,8.1,8.2,6,9.5,9.4,8.7,9.8,10.9,8.4,7.4,8.4,10,9.7,8.6,12.4,10.7,11,9.4)

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> x1<-c(7,13.2,8.1,8.2,6,9.5,9.4,8.7,9.8,10.9,8.4,7.4,8.4,10,9.7,8.6,12.4,10.7,11,9.4)

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The result is on the first figure attached.

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