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3 years ago

When three or more lines intersect at one point, they are ____________.

1 answer:

Nookie1986 [14]3 years ago

5 0

The correct answer is Concurrent Lines. In geometry, when three or more lines in a plane or a higher dimensional space intersect at a single point, the lines are said to be concurrent.

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Cristiana uses $25,000 to purchase a 25 month CD (certificate of deposit) that pays 2.47% compounded monthly.

Andre45 [30]

25000×.0247=617.5

617.5×25=15,437.5

25,000+15,437.5=40,437.5

her investment was worth 40,437.5
she earned 15,437.5

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3 years ago

Si tengo 3 galletas y las tengo que repartir en 4 niños cuanto le toca a cada niño

Free_Kalibri [48]

You cut the cookie in 4 parts and give them 3 pieces

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3 years ago

A fast food restaurant executive wishes to know how many fast food meals teenagers eat each week. They want to construct a 99% c

Lana71 [14]

Answer:

The minimum sample size required to create the specified confidence interval is 2229.

Step-by-step explanation:

We have that to find our $\alpha$ level, that is the subtraction of 1 by the confidence interval divided by 2. So:

$\alpha = \frac{1-0.99}{2} = 0.005$

Now, we have to find z in the Ztable as such z has a pvalue of $1-\alpha$ .

So it is z with a pvalue of $1-0.005 = 0.995$ , so $z = 2.575$

Now, find the margin of error M as such

$M = z*\frac{\sigma}{\sqrt{n}}$

In which $\sigma$ is the standard deviation of the population and n is the size of the sample.

What is the minimum sample size required to create the specified confidence interval

This is n when $M = 0.06, \sigma = 1.1$

$0.06 = 2.575*\frac{1.1}{\sqrt{n}}$

$0.06\sqrt{n} = 2.575*1.1$

$\sqrt{n} = \frac{2.575*1.1}{0.06}$

$(\sqrt{n})^{2} = (\frac{2.575*1.1}{0.06})^{2}$

$n = 2228.6$

Rounding up

The minimum sample size required to create the specified confidence interval is 2229.

7 0

3 years ago

Claudia is going to buy a used car for $9,500. She can finance it at the car dealership at 11% interest for 3 years, or she can

Thepotemich [5.8K]

Answer:

i dont know sorry

Step-by-step explanation:

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3 years ago

an apple is cut into 10 pieces. 0.8 of the apple is eaten. which fraction ,in simplest form ,represents the amount of the apple

nika2105 [10]

The apple is cut into 10 pieces so each piece is 1/10 of the apple. 1/10=.1; .8=8/10 so 8 pieces are eaten. 2 pieces are left which is 2/10 of the apple which simplifies to 1/5 because 2 and 10 are both divisible by 2. 2 divided by itself is 1 and 10 divided by 2 is 5. So the amount of the apple left in simplest form of a fraction is 1/5.

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2 years ago

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