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Dafna1 [17]
3 years ago
15

Help with this question, please!! I don't understand!

Mathematics
1 answer:
kondor19780726 [428]3 years ago
3 0

Answer:

FE = 30°

Step-by-step explanation:

arc FGC = arc FG + arc GB + arc BC

220° = 90° + arc GB + 70° . . substitute known values

60° = arc GB . . . . . . . . . . . . . subtract 160°

__

External angle A is half the difference of arcs EG and GB:

30° = (1/2)(arc FE +90° -60°) . . . substitute known values

60° = arc FE + 30° . . . . . . . . . . . multiply by 2 and simplify

30° = arc FE . . . . . . subtract 30°

_____

The key to this problem is the relationship between external angle A and the measures of the arcs it subtends.

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Answer:

I think it would be the top left, and bottom left.

Step-by-step explanation:

They both show a steady and even rise upward, and the line is continuous and it's not just dots marking the spots. The line connects all the dots, so I believe that would be it.

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3 years ago
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a) In a simple random sample of 1000 faculty taken among all universities in a country, the number of papers published by the in
larisa86 [58]

Answer:

According to the Central Limit theorem, the distribution is roughly normal

Step-by-step explanation:

The Central Limit Theorem states that for sample sizes above 30 and not withstanding population distribution's shape, the sampling distribution of the sample mean becomes more similar t hat of a normal distribution as the sample size increases;

The size of the sample = 1,000 >> 30

As the sample size approaches infinity, we have;

z=\dfrac{\bar{x}-\mu }{\dfrac{S.D.}{\sqrt{n}}}

\overline x = 1.5

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Assume μ = 1, we get;

P(x > 1.1):z=\dfrac{1.1-1 }{\dfrac{1.8}{\sqrt{1000}}} = 1.7568

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3 years ago
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Answer:

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Total number is 20.

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Total number of Art students becomes 12

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2 years ago
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What size do you know it can be 5 gal. or 1 gal.
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