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N76 [4]
2 years ago
14

What is the y-intercept of the graph below?

Mathematics
1 answer:
Fynjy0 [20]2 years ago
6 0

Answer:

B

Step-by-step explanation:

the y- intercept is the point on the y- axis where the line crosses it

the line crosses the y - axis at (0, - 4 ) ← y- intercept

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mridul jogs around a rectangular park of 100m by 80m at the rate of 9km per hour. how much time will he take in jogging 6 rounds
anyanavicka [17]

Answer:

14minutes

Step-by-step explanation:

first you need to find the distance which you must find the perimeter P=100+80+100+80

=360 so you multiple it by 6 to get

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so you need to convert the meters to kilometers

which is 1000m =1km

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to get 2.16km.

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T=2.16km/9km/h

so the km cancels each other

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3 years ago
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lubasha [3.4K]

Answer:

The property used is the commutative property.

Step-by-step explanation:

In the commutative property, the sum is the same if you reorder the numbers.


I hope this helped! :-)

5 0
3 years ago
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olya-2409 [2.1K]

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2 years ago
In a large population, 82% of the households have cable tv. A simple random sample of 225 households is to be contacted and the
anzhelika [568]

Answer:

The mean of the sampling distribution of the sample proportions is 0.82 and the standard deviation is 0.0256.

Step-by-step explanation:

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.

For proportions, the mean is \mu = p and the standard deviation is s = \sqrt{\frac{p(1-p)}{n}}

In this problem, we have that:

p = 0.82, n = 225.

So

\mu = 0.82

s = \sqrt{\frac{p(1-p)}{n}} = \sqrt{\frac{0.82*0.18}{225}} = 0.0256

The mean of the sampling distribution of the sample proportions is 0.82 and the standard deviation is 0.0256.

7 0
3 years ago
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insens350 [35]
1x16
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