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Leviafan [203]
4 years ago
11

I’d like some help with this if it isn’t too much trouble

Mathematics
2 answers:
Rufina [12.5K]4 years ago
7 0

Answer:

Step-by-step explanation:

The rule is that an arc has the same degree measure as does the central angle that cuts it off. Arc CE is cut off by angle made by C-the center of the circle-E. That angle measures 85 degrees, so arc CE measures 85 degrees. Make sure you are not confusing arc measure with arc length, which is very much NOT THE SAME!!

The same goes for arc DE. It is cut off by a central angle measuring 145, so arc DE measures 145 degrees. All the way around a circle, regardless of how big the circle is, is 360 degrees. Therefore, arc DC = 360 - 85 - 145 and

arc DC = 130 degrees.

Allisa [31]4 years ago
3 0

Answer:

The angle of DC is 130°.

Step-by-step explanation:

Given tha total angle in a centre(O) of circle, is 360. So in order to find ∠DOC, you have to subtract 85° and 145° from 360° :

∠COD = 360° - ∠COE - ∠DOE

= 360° - 85° - 145°

= 130°

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4 years ago
Whats the median number mode and mean for 95, 97, 100, 86, 78, 96
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Answer:

Mean = 92

Median = 95.5

There is no mode.

What is mean, median, and mode?

Mean, median, and mode are terms in math when it comes to looking at charts and sets/groups of numbers.

1. The mean is the average of a data set.

2. The median is the middle of a data set.

3. The mode is the most common number in a data set.

Mean is found by adding the numbers and dividing the sum by the number of numbers in the list. This is what is most often meant by an average. The median is the middle value in a list ordered from smallest to largest. The mode is the most frequently occurring value on the list.

Before we start, let's put the set of numbers in order from least to greatest,

95, 97, 100, 86, 78, 96

78, 86, 95, 96, 97, 100

Now that we have done that let's find the mean,

78 + 86 + 95 + 96 + 97 + 100 = 552

There are 6 numbers in this set so we need to divide 552 by 6,

552 ÷ 6 = 92

92 is the mean/average of this data set,

Now let's find the median,

If we take a look at the data set we can see that there are two numbers in the middle because there are 6 in total,

78, 86, 95, 96, 97, 100

Because there are two values that are in the middle we need to add them up and divide the sum of them by 2,

95 + 96 = 191

191 ÷ 2 = 95.5

95.5 is the median of this data set,

Now let's find the mode,

If we take a look at the date set we can see that none of the numbers are repeated,

So this means there is no mode to this data set,

Therefore the mean is 92, the median is 95.5, and there is no mode.

4 0
2 years ago
Jane is opening a savings account with an initial deposit of $100. The bank offers a 5%
yKpoI14uk [10]

Answer:

105 dollars after a year

Step-by-step explanation:

I = (100)(0.05)(1)

I = 5

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3 years ago
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