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Sladkaya [172]
3 years ago
11

In this circle what is the value of x?

Mathematics
2 answers:
Darina [25.2K]3 years ago
8 0
The answer is the third option 78 degrees
dmitriy555 [2]3 years ago
4 0
Assuming the triangle is a right triangle, the answer would be 78 degrees.

Since the angles of a triangle must equal 180 degrees, 180-12-90=78
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PLEASE HELP QUICKLY I WILL MARK BRAINLIEST AND IF YOU ARE TRYING TO GET FREE POINT I WILL REPORT YOU
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<B+<D = 180
x+148 = 180
x = 32

<A = 2(32) + 1
<A = 64+1
<A = 65
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3 years ago
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What value of X makes this equation true negative 2X +3 equals -15
Radda [10]

Answer:

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Assume that women have heights that are normally distributed with a mean of 63.6 inches and a standard deviation of 2.5 inches.
Maurinko [17]

Answer:

Q3 = 65.7825.

Step-by-step explanation:

Problems of normally distributed samples are solved using the z-score formula.

In a set with mean \mu and standard deviation \sigma, the zscore of a measure X is given by:

Z = \frac{X - \mu}{\sigma}

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.

In this problem, we have that:

\mu = 63.6, \sigma = 2.5

Find the value of the quartile Q3. (Hint: Q3 has an area of 0.75 to its left.)

This is the value of X when Z has a pvalue of 0.75. So it is X when Z = 0.675.

Z = \frac{X - \mu}{\sigma}

0.675 = \frac{X - 63.6}{2.5}

X - 63.6 = 0.675*2.5

X = 65.7825

Q3 = 65.7825.

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Answer:

eqn of line

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Step-by-step explanation:

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