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Alecsey [184]
2 years ago
10

Which of the lines below is a line of symmetry?

Mathematics
2 answers:
irina1246 [14]2 years ago
8 0

Answer:

both the lines are symmetry as it cuts the square into two equal parts.

son4ous [18]2 years ago
3 0
Answer: D) Both

Detailed Explanation:

Lines of symmetry in a figure are lines that divide the figure into equal parts.

In the given Figure, the Red lines cuts the shape into 2 equal halves vertically and the Yellow line cuts the shape into 2 equal halves diagonally.

Therefore, both the Red and Yellow lines are lines of symmetry.
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True or false? I'm deductive thinking, you start with a given set of rules and conditions and determine what must be true as a c
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Deductive thinking: When you start with a given set of rules and conditions and determine what must be true as a consequence.

So the answer is true.
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1. The current in a clothes washer is 15A when plugged into a 120V outlet. What is
mylen [45]

Answer:

Step-by-step explanation:

Power = Force × Velocity.

15*120=1800

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3 years ago
-0.183 as a fraction in the simplest form??
IRISSAK [1]
-0.183 = -0.183 / 1

Numerator = -0.183 × 10 × 10 × 10 = -183
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Numerator / Denominator = -183 / 1000

Our simplified fraction is:

= -183/1000



8 0
3 years ago
Read 2 more answers
The mean height of women in a country (ages 20-29) is 64 4 inches A random sample of 50 women in this age group is selected What
Simora [160]

Answer:

0.0721 = 7.21% probability that the mean height for the sample is greater than 65 inches.

Step-by-step explanation:

To solve this question, we need to understand the normal probability distribution and the central limit theorem.

Normal Probability Distribution:

Problems of normal distributions can be solved using the z-score formula.

In a set with mean \mu and standard deviation \sigma, the z-score 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 p-value, we get the probability that the value of the measure is greater than X.

Central Limit Theorem

The Central Limit Theorem establishes that, for a normally distributed random variable X, with mean \mu and standard deviation \sigma, the sampling distribution of the sample means with size n can be approximated to a normal distribution with mean \mu and standard deviation s = \frac{\sigma}{\sqrt{n}}.

For a skewed variable, the Central Limit Theorem can also be applied, as long as n is at least 30.

Mean of 64.4 inches, standard deviation of 2.91

This means that \mu = 64.4, \sigma = 2.91

Sample of 50 women

This means that n = 50, s = \frac{2.91}{\sqrt{50}}

What is the probability that the mean height for the sample is greater than 65 inches?

This is 1 subtracted by the p-value of Z when X = 65. So

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

By the Central Limit Theorem

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

Z = \frac{65 - 64.4}{\frac{2.91}{\sqrt{50}}}

Z = 1.46

Z = 1.46 has a p-value of 0.9279

1 - 0.9279 = 0.0721

0.0721 = 7.21% probability that the mean height for the sample is greater than 65 inches.

8 0
3 years ago
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