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Anarel [89]
2 years ago
8

Is -2x2y3z an expression or equation?

Mathematics
1 answer:
DochEvi [55]2 years ago
7 0

Answer:

expression

Step-by-step explanation:

expressions DON'T have equal signs but equations do.

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Answer:

=0.1587 or 15.87%

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Step-by-step explanation:

In order to find the percent of the invoices paid within 5 days of receipt we have to find the value of Z first.

Z=\frac{X-u}{S}

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X is the random varable which in our case is 15 days

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Z=\frac{15-20}{5}

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We have to find Probability at Z less than -1

P(Z<-1.0) which can be written as:

=1-P(Z>1.0)

From Cumulative distribution table:

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