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jeka57 [31]
2 years ago
14

I need help 9th grade math

Mathematics
1 answer:
Rashid [163]2 years ago
8 0

Answer:

10

Step-by-step explanation:

Lower quartile (Q₁) = 25

Upper quartile (Q₃) = 35

Interquartile range (IQR) = Q₃ - Q₁ = 35 - 25 = 10

(see attachment)

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How many edges does a polyhedron with 28 faces and 40 vertices have calculator?
emmasim [6.3K]
Hey user!

your answer is here..

we know about EULER'S FORMULA, it is a formula used to verify a polyhedron or to calculate the number of faces, vertices or edges.

Euler's formula = F + V - E = 2

given :-

faces = 28, verticies = 50 and edge = ?

we know that F + V - E = 2

therefore 28 + 40 - E = 2

==> 68 - E = 2

==> - E = 2 - 68

==> - E = - 66

==> E = 66

hence, the number of edges of the polyhedron is 66.

cheers!!
6 0
3 years ago
Read 2 more answers
6.25% tax on a $25 purse
enyata [817]

Answer:

what you want me to asnwer

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Step-by-step explanation:

4 0
3 years ago
William got scores of q sub 1, , and q sub 3 on three quizzes.
USPshnik [31]

Answer:

a. The average is  =(++) .

b. He can use the formula  =−− q sub 3 , equals 3 x minus , q sub 1 , minus , q sub 2. He will need a score of  =()−−= q sub 3 , equals 3 open 90 close minus 85 minus 88 equals 97 on his third quiz.

Step-by-step explanation:

3 0
3 years ago
Trees are planted at intervals of 5 m along side of a 140 m straight path. The first tree is planted at the start of the path an
Luden [163]
<h3>Solution :</h3>

Distance between first tree and last tree is 140m .

And distance between each tree (d) = 5 m

let's solve for number of trees (n) :

\hookrightarrow \: (n - 1)d = 140

\hookrightarrow \: (n - 1)5 = 140

\hookrightarrow \: n - 1 =  \dfrac{140}{5}

\hookrightarrow \: n = 28 + 1

\hookrightarrow \: n = 29

hence, total number of trees = 29.

4 0
3 years ago
Mr. Dylan asks his students throughout the year to record the number of hours per week they spend practicing math at
AnnZ [28]

Answer:

  see the attachment

Step-by-step explanation:

A "line of best fit" generally has about as much data above the line as below it. If the data has any trend, it generally follows the trend.

The best choice here is B.

7 0
3 years ago
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