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larisa86 [58]
3 years ago
8

NEED HELP ASAP ! answers !

Mathematics
1 answer:
bazaltina [42]3 years ago
7 0

Answer:

92 degrees

Step-by-step explanation:

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The following table shows the number of hours some students in two neighborhoods spend on social media each day:
Alex777 [14]

The box plot is not symmetrical for either data set.

<h3>What is Quartile?</h3>

Quartiles divide the data values into four parts; the first quartile is the 25th percentile, the second quartile is the 50th percentile (also the median), and the third quartile is the 75th percentile.

Firstly, order the two data set from smallest to largest as shown in diagram below

The value of median, Q2 is the 5th value of both set

The value of Q1 and Q3 is the first and third quarter of the set

The range of data set one is 5-2=3 and of set two is 12-1=11

The interquartile range of set one is 5 - 2 = 3

The interquartile range of set two is 5 - 1.5 = 3.5

Thus, the box plot is not symmetrical for either data set.

Learn more about Quartile from:

brainly.com/question/7039036

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3 0
2 years ago
If a² + a + 1=0, find the value of 1 - a -a².​
IRINA_888 [86]

Answer:

2

Step-by-step explanation:

Given: a² +a +1= 0

Bringing a terms to the right-hand side:

1= -a² -a

-a² -a= 1

-a -a²= 1

1 -a -a²

= (-a -a²) +1

= 1 +1

= 2

7 0
3 years ago
A conical tank is 8 meters high. The radius of the top is 2 meters. At what rate is the water running out if the depth is 3 mete
lina2011 [118]

Answer:

DV/dt    = 0,2355 m³/min

Step-by-step explanation:

Conical tank volume    V  =  1/3 *π*r²*h

r radius at the top    2 meters

when depth of water is 3 meters the radius of the level of water is:

let     α  angle of vertex of cone then

tan∠α   = 2/8        tan∠α   = 1/4         tan∠α  = 0,25

At the same time when water is at 3 meters depth  radius is

tan∠α  = r/3             0,25*3= r         r  = 0,75 m

Now

DV/dt    =  (1/3)*π*r²*Dh/dt            

Dh/dt  =  0,4 meters/min

By substitution

DV/dt    = 0,2355 m³/min

3 0
3 years ago
What times itself 4 times gets you 10000
jeka57 [31]

Answer: 2500

Step-by-step explanation:

6 0
3 years ago
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Which of the following relationships represents a function?
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Which of the following relationships represents a function?
Answer: B
5 0
3 years ago
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