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3 years ago

Which of the following statement is incorrect? .

Mathematics

2 answers:

Nuetrik [128]3 years ago

5 0

Answer:

b) Commutative property is true for subtraction of Rational numbers

Step-by-step explanation:

Option B is incorrect.
Commutative property is not true for subtraction of Rational numbers .

Alexandra [31]3 years ago

3 0

Its B
ignore the extra characters ^ that person is correct sbakebwn

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Answer:

x=1

Step-by-step explanation:

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Answer :

That’s it, the probability of getting tail on a single coin toss times the number of observations.

In this case, 1/2 * 72 = 36

However, there’s something called chance error. How much do you expect the result to differ from the expected value? It can be calculated as follows:

The Standard Deviation of this experiment is √(0.5)(0.5) =0.5

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3 years ago

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amid [387]

Answer:

x = 2

Step-by-step explanation:

The relevant rule of logarithms is ...

log(a/b) = log(a) -log(b)

This lets us combine the logs on the left to get ...

log((6 +7x)/(3x -2)) = log(5)

Taking anti-logs gives ...

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8x = 16 . . . . . . . . . . . add 10-7x to both sides

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