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3 years ago

In a circle with radius 3.4, an angle measuring 9.6 radians intercepts an arc. Find the

Mathematics

1 answer:

ra1l [238]3 years ago

8 0

Answer:

32.6

Step-by-step explanation:

S=3.4(9.6)

S=32.64≈32.6

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IQ scores are normally normally distributed with a mean of 100 and center deviation of 15 if one person is randomly selected wha

Arlecino [84]

Answer:

22.86% probability that the persons IQ is between 110 and 130

Step-by-step explanation:

Problems of normally distributed samples are solved using 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.

In this problem, we have that:

$\mu = 100, \sigma = 15$

If one person is randomly selected what is the probability that the persons IQ is between 110 and 130

This is the pvalue of Z when X = 130 subtracted by the pvalue of Z when X = 110.

X = 130

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

$Z = \frac{130 - 100}{15}$

$Z = 2$

$Z = 2$ has a pvalue of 0.9772

X = 110

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

$Z = \frac{110 - 100}{15}$

$Z = 0.67$

$Z = 0.67$ has a pvalue of 0.7486

0.9772 - 0.7486 = 0.2286

22.86% probability that the persons IQ is between 110 and 130

6 0

2 years ago

What is the perpendicular line slope of -2x-9y=4

zimovet [89]

The slope would be 9/2

8 0

3 years ago

What is an example of a country with this economic system?

Viktor [21]

Answer:In a free market economy, the law of supply and demand, rather than a central government, regulates production and labor. Companies sell goods and services at the highest price consumers are willing to pay, while workers earn the highest wages companies are willing to pay for their services. A purely capitalist economy is a free market economy; the profit motive drives all commerce and forces businesses to operate as efficiently as possible to avoid losing market share to competitors.

Step-by-step explanation:

4 0

3 years ago

Helppppp pleaseeeee fasttttt thankkkkk youuuuu

Digiron [165]

Pretty sure it is nine. I hope I helped

8 0

3 years ago

Solve the application problem. find the perimeter of a ruler that measures 6 inches by 5656 inch.

AleksAgata [21]

The perimeter of a ruler that measures 6 in. by 5656 in. is 11,324 in.

Explanation:
To find the perimeter<span> of a rectangle or square you have to add the lengths of all the four sides.</span>

5 0

3 years ago