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nikdorinn [45]
3 years ago
5

PLEASE HELP PLEASE

Mathematics
1 answer:
SashulF [63]3 years ago
7 0

Answer: A

Step-by step explanation:

See paper attached. (:

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Select the correct answer.<br> What is the domain of the function shown on the graph?
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B. negative infinity < x < positive infinity

Step-by-step explanation:

When a question asks for the domain of a function, it is asking for all possible x-values, so we can rule out choice A since there are clearly x-values greater than 1. This graph shows arrows pointing left and downward, indicating that the graph continues past what we can see. This tells us that even though the x-values look like they end at -10 and 2, they continue further, so we can also rule out option C and option D. After these eliminations, we are left with choice B, which is a way of writing "All real numbers," and is the domain for <u>all</u> exponential functions, including this one.

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3 years ago
Express the null hypothesis and the alternative hypothesis in symbolic form. Use the correct symbol ​( mu μ​, ​p, sigma σ​) for
ella [17]

Answer:

Null hypothesis: H_0:\; \mu = 48\; ^\circ\rm F.

Alternative hypothesis: H_1:\; \mu \ne 48\; \rm ^\circ F.

Step-by-step explanation:

In hypothesis testing, the alternative hypothesis H_1 represents the claim that is being tested. According to the claim in this question, the true (population) mean \mu is "incorrect," or not equal to ("\ne") the proposed value of 48\; \rm ^\circ F. Hence, the alternative hypothesis for this question would be H_0:\; \mu \ne 48\; \rm ^\circ F.

On the other hand, the null hypothesis represents what happens when that claim is disproved; it should always use the equal sign ("=".) In this question, that's the same as saying that the (population) mean \mu is indeed equal to 48\; \rm ^\circ F. Hence, the null hypothesis for this question would be: H_1:\; \mu = 48\; \rm ^\circ F.

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BÀI 5
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ano hindi po ma hintindihan po hindi paano po yan masasagutan

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