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3 years ago

An is formed by two rays that share an endpoint

Mathematics

2 answers:

9966 [12]3 years ago

6 0

Angel ................................................ :D

kumpel [21]3 years ago

4 0

The answer is Angle.

Rays that share and endpoint form an angle. :)

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Please help! An archway will be constructed over a walkway. A piece of wood will need to be curved to match a parabola. Explain

Gwar [14]

draw a perpendicular line from the directrix passing through the focus, this will be the line of symmetry. The vertex(h, k) will be located on the line half way between the focus and directrix. The distance from the focus to the vertex is called the focal length, call it a. The then equation is (x - h)^2 = 4a(y - k) the equation can be manipulated to y = 1/4a(x - h)^2 + k hope it helps

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3 years ago

Read 2 more answers

What is true of all multiples of 6? A. All multiples of 6 have 2 and 3 as factors. B. All multiples of 6 have 12 as a factor. C.

juin [17]

Answer:

Step-by-step explanation:

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3 years ago

Which number makes this sentence true? 32:40=48:x

Sav [38]

Answer:

x=60

Step-by-step explanation:

divid the numbers

multiply all terms by the same value to eliminate fraction denominator

simplify

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3 years ago

If your teacher tells you to do a questions 38 through 51 in your math book for homework, how many questions is that ?

vova2212 [387]

The Answer To This Question Would be 14, Total Questions That you would have to do.

This Is the Correct answer because You start at 38, But you have to Also include 38 When you go up to 51 final and If you do 38+14 it would be 51.

Hope This Helps

- Dante :D

3 0

3 years ago

Read 2 more answers

Olive weights are classified according to a unique set of adjectives implying great size. For example, the mean weight of olives

nlexa [21]

Answer:

d. 0.0047

Step-by-step explanation:

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

Normal probability distribution

When the distribution is normal, we use 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.

Central Limit Theorem

The Central Limit Theorem estabilishes 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.

Population:

We have that $\mu = 7.7, \sigma = 0.2$

Sample of 3:

$n = 3, s = \frac{0.2}{\sqrt{3}} = 0.1155$

Which of the following represents the probability that the mean weight of a random sample of 3 olives from this population is greater than 8 grams?

This is 1 subtracted by the pvalue of Z when X = 8. So

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

By the Central Limit Theorem

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

$Z = \frac{8 - 7.7}{0.1155}$

$Z = 2.6$

$Z = 2.6$ has a pvalue of 0.9953

1 - 0.9953 = 0.0047

The probability is given by option d.

4 0

3 years ago