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hodyreva [135]
3 years ago
11

Find the central angle of a sector of a circle if the area of the sector and the area of the remaining part of the circle are in

the proportion 4 : 5 ( with explanation )
Mathematics
1 answer:
andre [41]3 years ago
8 0

Answer:

288

Step-by-step explanation:

360/5 = 72

72x4 = 288

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Answer:

2 2/5

Step-by-step explanation:

3/4 divided  by 5/16 = 12/5

12 goes into 5 2 times making

2 2/5

5 0
2 years ago
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Round 288 to the nearest tenth
cricket20 [7]
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6 0
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Given a=5 b=12 c=13 5²+12²=13²
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Step-by-step explanation:

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4 0
3 years ago
An investigator wants to assess whether the mean m = the weight of passengers flying on small planes exceeds the FAA guideline o
stira [4]

Answer:

H_{0}: \mu= 185 and H_{a}: \mu > 185

Step-by-step explanation:

The null hypothesis H_{0} states that a population parameter (such as the mean, the standard deviation, and so on) is equal to a hypothesized value. We can write the null hypothesis in the form H_{0}: parameter = value

In this context, the investigator's null hypothesis should be that the average total weight is no different than the reported value by the FAA. We can write it in this form H_{0}: \mu= 185.

The alternative hypothesis H_{a} states that a population parameter is smaller, greater, or different than the hypothesized value in the null hypothesis. We can write the alternative hypothesis in one of three forms

H_{a}: parameter > value\\H_{a}: parameter < value\\H_{a}: parameter \neq value

The investigator wants to know if the average weight of passengers flying on small planes exceeds the FAA guideline of the average total weight of 185 pounds. He should use H_{a}: \mu > 185 as his alternative hypothesis.

7 0
3 years ago
Answer this really quick
ivann1987 [24]

Answer:

the equation is y = ax + b (a ≠ 0)

see in the graph, the line passed through (0;3) and (1;5)

=>b = 3

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     b = 3

=> the equation is y = 2x + 3

Step-by-step explanation:

7 0
2 years ago
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