The expression 3 -42 + 6 / 2 was evaluated what would be done first

Mathematics

2 answers:

Fittoniya [83]3 years ago

6 0

The correct answer should be squaring.

This is because of the order of operations. It says that all grouping should be done first (parentheses, absolute value, brackets, etc.). This expression doesn't have any of those.

Next is exponents. This expression has a square so it should be done first.
After that, we do multiplication and division in order from left to right.
Lastly, we do addition and subtraction, also in order from left to right.

s2008m [1.1K]3 years ago

5 0

3 - 4^ +6/2=
3 - 16 + 3 = -10
-13+3= -10
-16...-15...-14...-13...-12...-11...-10...-9...-8...-7-...6...-5...-4...-3...-2...-1......0...1...2...3...

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An article claims that 12% of trees are infested by a bark beetle. A random sample of 1,000 trees were tested for traces of the

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Answer:

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Step-by-step explanation:

The formula for z test is given above as:

z = p' - p/√(pq/n)

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q= 1 - 0.12 = 0.88

n = number of samples = 1000

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