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3 years ago

The theorems in this lesson relate to all of the following except for:

2 answers:

7 0

The theorems in this lesson relate to all of the following (tangents, arcs, and chords) except for radii.

BlackZzzverrR [31]3 years ago

6 0

Answer:

Radii

Step-by-step explanation:

Circle is a geometric shape with centre at the middle and all points on the circumference keeping equal distance from the centre

Circle has so many theorems

Tangent segment theorem is the theorem about tangents.

Arc length theorem is for arc.

Chord is perpendicular to the line joining mid point of the chord and centre is one of the theorems on chords

Thus we have so many theorems for tangents,chords and arcs of a circle.

But for radii no theorem is there.

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Each morning, Zack leaves his house at 6:35 A.M. It takes Zack 10 minutes to walk to the bus stop. Zack rides the bus for 30 min

skad [1K]

Zack will arrive at his office at 7:25 A.M.

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3 years ago

In a certain section of Southern California, the distribution of monthly rent for a one-bedroom apartment has a mean of $2,275 a

KATRIN_1 [288]

Answer:

100% probability of selecting a sample of 65 one-bedroom apartments and finding the mean to be at least $2,095 per month

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 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.

Mean of $2,275 and a standard deviation of $290.

This means that $\mu = 2275, \sigma = 290$

Sample of 65:

This means that $n = 65, s = \frac{290}{\sqrt{65}}$

Finding the mean to be at least $2,095 per month

This is 1 subtracted by the p-value of Z when X = 2095. So

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

By the Central Limit Theorem

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

$Z = \frac{2095 - 2275}{\frac{290}{\sqrt{65}}}$

$Z = -5$

$Z = -5$ has a p-value of 0.

1 - 0 = 1

100% probability of selecting a sample of 65 one-bedroom apartments and finding the mean to be at least $2,095 per month

7 0

2 years ago

5(17+13) ÷(8-7) Simply the expression

Scrat [10]

First expand by multiplying
Do 5 x 17=85
Then 5 x 13= 65
As them
85+65=150
8-7=1
150/1=150
Answer-150

8 0

3 years ago

Read 2 more answers

Rashida owns a bike rental company.

BartSMP [9]

So, our starting point, at zero hours, you already owe ten dollars.
So far you know it is +10.
Now, you multiply for by however many hours you have rented the bike for.
So the equation is:
4x+10.
x= # of hours bike is rented for.
Hope this helps! Have a happy holiday!

7 0

2 years ago

Read 2 more answers

If jammy makes 4 baskets in 1/2 of an hour how much can she make in 5 hours

coldgirl [10]

Answer: 40

Step-by-step explanation: If she made 4 baskets in a half an hour then one hour she would make 8 in one hour and in 2 hours she would make 16 because 8 hours from the first hour and 8 more from the second hour. Because there is 1 hour and in the hour she made 8 if she needs 5 hours just multiply 8 by 5. That would give you 40.

4 0

2 years ago