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mars1129 [50]
2 years ago
15

1 Choose all the variable terms in the expression. 12+15x-16-4x-10x

Mathematics
1 answer:
Sergeu [11.5K]2 years ago
8 0

Answer:

X (all of them)

Step-by-step explanation:

X is a variable and the numbers and constants, numbers that do not change. (There isn't much of an explanation for this) (Variables are usually just letters, or unknown amounts)

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Step-by-step explanation:

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Answer:

a) Null and alternative hypothesis:

H_0: \pi=0.1\\\\H_a:\pi>0.1

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Step-by-step explanation:

a) The hypothesis should be carried to test if the proportion of students that would eat there at least once a week is significantly higher than 10%.

Then, the alternative or spectulative hypothesis will state this claim: that the population proportion is significantly bigger than 10%.

On the contrary, the null hypothesis will state that this proportion is not significantly higher than 10%.

This can be written as:

H_0: \pi=0.1\\\\H_a:\pi>0.1

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D?

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