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olga nikolaevna [1]
3 years ago
9

choose an object that is the same length as a real baseball bat explain how to estimate its length in feet

Mathematics
1 answer:
tekilochka [14]3 years ago
3 0
Visually again I’m not really sure but a average arm would be the same size
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Find the percent of area under a normal curve between the mean and the given number of standard deviations from the mean.​ (Note
coldgirl [10]

Answer:

15.86%

Step-by-step explanation:

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.

Percent of area between the mean and 0.20 standard deviations from the mean:

pvalue of Z = 0.2 subtracted by the pvalue of Z = -0.2

Z = 0.2 has a pvalue of 0.5793

Z = -0.2 has a pvalue of 0.4207

0.5793 - 0.4207 = 0.1586

So this percentage is 15.86%

8 0
3 years ago
Order the decimal greatest to least 8.31,8.295, 8.06,8.3
Mama L [17]

Answer:

Least 8.06, 8.295, 8.3, 8.31 Greatest

5 0
2 years ago
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2x × 9 = ?<br><br> What is the answer?<br> Is the answer 18x?
scoundrel [369]

Answer:

The answer is 18x.

Step-by-step explanation:

2x times 9 is 18x because when you multiply 9 times 2, you get 18 and the x carries over.


5 0
2 years ago
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An observer for a radar station is located at the origin of a coordinate system. Find the bearing of an airplane located at the
AfilCa [17]

Answer:

135 degrees

S45^{0}E

Step-by-step explanation

Consider the attached diagram

we are required to find the bearing of the aeroplane,

Consider the right angled triangle BOE

|OB|=4 unit

|AB|=4 Units

Tan \alpha =\frac{Opposite}{Adjacent} =\frac{4}{4} \\\\\alpha=Tan^{-1} 1=45 degrees

The Bearing of the Aeroplane is therefore given:

(i)From North Clockwise as: 90+45 =135 degrees

(ii)From a North South Line as S45^{0}E

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3 years ago
Find the perimeter and area of the following
Bess [88]
You multiply the two side lengths for area
To get 52x^3y
To find perimeter you add all the side lengths to get 8x^2+26x
7 0
3 years ago
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