Simplify this expression: a + 2a + 3b - a - b

Mathematics

2 answers:

aniked [119]3 years ago

8 0

Simplified would be 2a+2b

LenaWriter [7]3 years ago

6 0

a + 2a + 3b - a - b
combine like terms

= 2a + 2b
or
= 2(a+b)

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Normal Probability Distribution:

Problems of normal distributions can be solved using the z-score formula.

In a set with mean $\mu$ and standard deviation $\sigma$ , the z-score of a measure X is given by:

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