3 years ago

Please help. What's the answer???

Mathematics

1 answer:

valentinak56 [21]3 years ago

6 0

I believe it is c. e. and f.

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A newsletter publisher believes that less than 49% of their readers own a laptop. For marketing purposes, a potential advertiser

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Answer:

The answer is "At the 0,10 level, there should be enough proof that the percentage is below 49%"

Step-by-step explanation:

Null and alternative hypothesis:

$H_0 :P \geq 0.49\\\\H_1:P$

Significance level: $\alpha = 0.10$

It is decided that the null hypothesis at the defined meaning level is rejected.

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3 years ago

7 is 31% of what total amount?

anzhelika [568]

Answer:

$22.58$

Step-by-step explanation:

Let the total amount be x

Let's solve now

$x \times \frac{31}{100} = 7 \\ x = \frac{7 \times 100}{31} x = \frac{700}{31} \\ x = 22.58$

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4 years ago

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3 years ago

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Step-by-step explanation:

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3 years ago

2x squared plus 3x minus 2 plus 7

alex41 [277]

Answer:

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2x^2 + 3x + - 2 + 7

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