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Darina [25.2K]
3 years ago
12

Find the value of x.

Mathematics
1 answer:
ElenaW [278]3 years ago
7 0

Answer:

x = 3

Step-by-step explanation:

Given 2 intersecting chords, then

The product of the parts of one chord is equal to the product of the parts of the other chord, that is

5x × x = 5 × 9

5x² = 45 ( divide both sides by 5 )

x² = 9 ( take the square root of both sides )

x = \sqrt{9} = 3

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Romashka-Z-Leto [24]

Answer:

B

Step-by-step explanation:

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  • For the option B the p value will also be same as in case A hence B is true as an alternative hypothesis.
  • We can calculate P value

         Confidence Interval = p ± z \sqrt{p(1-p)/n}

         

4 0
4 years ago
A boy flying a kite is standing 30 ft from a point directly under the kite. If the string to the kite is 50 ft long, what is the
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Answer:

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Step-by-step explanation:

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5 0
4 years ago
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Calculate the sample standard deviation and sample variance for the following frequency distribution of final exam scores in a s
Furkat [3]

Answer:

using

Step-by-step explanation:

\sqrt{efx(x - x) \div fx}  \\

5 0
3 years ago
The two box plots summarize the number of hours spent in the weight room for all the players on the football team
iragen [17]

Options:

A. Players at school 1 typically spent more time in the weight room than players at school 2.

B. The middle half of the data for school 1 has more variability than the middle half of the data for school 2.

C. The median hours spent in the weight room for school 1 is less than the median for school 2 and the interquartile ranges for both schools are equal.

D. The total number of hours spent in the weight room for players at school 2 is greater than the total number of hours for players at school 1.

(See attachment for the box plots)

Answer:

C. The median hours spent in the weight room for school 1 is less than the median for school 2 and the interquartile ranges for both schools are equal.

Step-by-step explanation:

The median for school 1 is the value at the vertical line that divides the box of the box plot display of for school 1, which is 8

School 2 has a median of 9.

As we can see, the median for school 1 is less than the median of school 2.

Interquartile range is the range of the box.

Interquartile range for school 1 = 10 - 4 = 6

Interquartile range for school 2 = 13 - 6 = 6

As we can also see, the interquartile range for school 1 and that of school 2 are equal.

7 0
4 years ago
What is the recommended daily amount of protein
vaieri [72.5K]

Answer:

the recommended protein intake is 100 grams a day. Although, a study has been conducted by researches that proved the average human takes in approximately only 70 grams a day.

Step-by-step explanation:

7 0
3 years ago
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