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sveta [45]
3 years ago
15

Double checking: On the first try I got 113, That turned out to the the wrong answer. I understand how 23 and 67 can be a answer

but 77 I can’t seem to do the math for it, so if someone can help me get the right answer, please and thanks.

Mathematics
2 answers:
Svetllana [295]3 years ago
7 0

Answer:

∠DCE = 67

Step-by-step explanation:

In triangle DCE,

∠DCE + 23 + 90 = 180 (angle sum property)

=> ∠DCE + 113 = 180

=> ∠DCE = 180 - 113

=> ∠DCE = 67

Hope it helps :)

Please mark my answer as the brainliest

madreJ [45]3 years ago
4 0
The answer is 67°.

Step by step explanation:

Since all triangles equal 180°

Let x be the value of m∠DCE.

x + 23° + 90° = 180°

x = 180° - 90° - 23°

x = 67°
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Answer:

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3 years ago
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File Is Attached To The Question
Paul [167]

Answer:

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Step-by-step explanation:

<h3>to understand this</h3><h3>you need to know about:</h3>
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<h3>let's solve:</h3>

according to the question

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let's justify

f(1)=3.05×1

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6 0
3 years ago
A man drove his car a distance of 366 miles in 6 hours. If continuing at this rate is possible, he will travel ____ miles in 7 h
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Hence, the standard deviation for these data is 7.1 sessions

In statistics, the standard deviation is a measure of the volatility or variance of a set of values. [1] A low standard deviation indicates that the values ​​tend to be close to the mean of the set (also known as the mean), and a high standard deviation indicates that the values ​​are more widely distributed. indicate.

Standard deviation can be abbreviated as SD, and in mathematical texts and equations, it is most commonly represented by the Greek lower σ (sigma) for population standard deviation or the Latin letter s for sample standard deviation. It is a target.

The standard deviation of a random variable, sample, population, dataset, or probability distribution is the square root of its variance. It's algebraically simple, but it's actually less robust than mean absolute deviation. A useful property of standard deviation is that, unlike variance, it is expressed in the same units as the data.

Expression

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