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2 years ago

What’s the answer to 8-(-4)

Mathematics

2 answers:

mash [69]2 years ago

8 0

Answer:

+ 12

Step-by-step explanation:

8 - (- 4) = 8 + 4 = 12

saul85 [17]2 years ago

6 0

Answer:

Step-by-step explanation:

When a sign is out of parenthesis and there's an opposite sign in parenthesis the sign for that number goes opposite. So... 8-(-4) ⇒ 8 + 4 ⇒ 12

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Anna71 [15]

Answer:

Step-by-step explanation:

given that certain tubes manufactured by a company have a mean lifetime of 800 hours and a standard deviation of 60 hours.

Sample size n =16

Std error of sample mean = $\frac{\sigma}{\sqrt{n} } \\= 15$

x bar follows N(800, 15)

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2 years ago

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Akimi4 [234]

Refer to the diagram shown below.

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2 years ago

What is the product ?

Olenka [21]

Answer:

The answer to your question is:

Step-by-step explanation:

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3 years ago

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jasenka [17]

Answer:

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Step-by-step explanation:

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