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Gnesinka [82]
3 years ago
13

What is a fractional and decimal equivalent of 9/20

Mathematics
2 answers:
skelet666 [1.2K]3 years ago
6 0

Answer:4.25 and

7/10

Step-by-step explanation:

never [62]3 years ago
4 0

Answer:

.45 and 9/20

Step-by-step explanation:

9 divided by 20 is .45 which is how you get a decimal.

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Ronald bought a number of cds for 13$ each. What was the total amount he spent on CDs
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How many cds did he buy?
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Answer Please this is really important
trapecia [35]

Answer:

B) Parallel

Step-by-step explanation:

The lines have the same slope of \frac{4}{3}. This makes the lines parallel.

Hope it helps!

3 0
3 years ago
Read 2 more answers
6p+2+ p - 3 = 8p - 8​
saul85 [17]
6p+p+2-3=8p-8
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7 0
3 years ago
What radius of a circle is required to inscribe a regular hexagon with an area of 210.44 cm2 and an apothem of 7.794 cm
alekssr [168]
We know that

[area of a regular hexagon]=6*[area of one <span>equilateral triangle]
</span>210.44=6*[area of one equilateral triangle]
[area of one equilateral triangle]=210.44/6-----> 35.07 cm²

[area of one equilateral triangle]=b*h/2
h=7.794 cm
b=2*area/h------> b=2*35.07/7.794------>b= 9 cm

the length side of a regular hexagon is 9 cm
<span>applying the Pythagorean theorem
</span>r²=h²+(b/2)²------>r²=7.794²+(4.5)²------> r²=81--------> r=9 cm

<span>this last step was not necessary because the radius is equal to the hexagon side------> (remember the equilateral triangles)
</span>
the answer is
the radius is 9 cm
8 0
3 years ago
The number of ways in which 4 squares can be chosen at random on a chess board such that they lie on a diagonal line?.
wariber [46]

The number of ways is 364 if the number of ways in which 4 squares can be chosen at random.

<h3>What are permutation and combination?</h3>

A permutation is the number of different ways a set can be organized; order matters in permutations, but not in combinations.

It is given that:

On a chessboard, four squares are randomly selected so that they are adjacent to each other and form a diagonal:

The required number of ways:

= 2(2[C(4, 4) + C(5, 4) + C(6, 4) + C(7, 4)] + C(8, 4))

= 2[2[ 1 + 5 + 15+35] + 70]

= 364

Thus, the number of ways is 364 if the number of ways in which 4 squares can be chosen at random.

Learn more about permutation and combination here:

brainly.com/question/2295036

#SPJ4

5 0
1 year ago
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