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Sholpan [36]
3 years ago
14

Sandra needs to buy 21/25 meters of chain for a home project. Which decimal number is equal to the fraction 21/25 ?

Mathematics
2 answers:
lesya692 [45]3 years ago
8 0
<u><em>≡ Solution:</em></u>
<em>⇔ To make it easier:</em>
⇒ ²¹/₂₅ × ⁴/₄
⇒ ⁸⁴/₁₀₀
<u>⇒ 0,84</u>
ollegr [7]3 years ago
3 0

Answer:answer is c

Step-by-step explanation:

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ABCD is a trapezium.
lisabon 2012 [21]

The length of BC is 4.674 m

<u>Explanation:</u>

Given:

Angle A = angle B = 90°

AD = 2.1 m

AB = 1.9 m

CD= 3.2 m

An image is inserted for the reference

According to the figure,

a is the base

b is the height

c is the hypotenuse

Using pythagoras theorm:

a² + b² = c²

a² + (1.9)² = (3.2)²

a² + 3.61 = 10.24

a² = 6.63

a = 2.574

BC = 2.1 + 2.574

BC = 4.674m

Therefore, the length of BC is 4.674 m

7 0
3 years ago
The midpoint of AB is M(-1, -2)M(−1,−2). If the coordinates of AA are (1, 3)(1,3), what are the coordinates of BB?
Sholpan [36]
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2 years ago
Please give me the correct answer. No mistakes. Thanks.
IceJOKER [234]

Answer:

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Step-by-step explanation:

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6 0
3 years ago
Need some help with these 2 math questions, They are related so best to finish one then work on the bisect. Thank you.
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4 0
2 years ago
Read 2 more answers
Which property of operation could you use to show whether 7y + 7b + 3y and 7(y x b) + 3b are equivalent or not
Dmitry_Shevchenko [17]

Answer and explanation:

They are not equivalent because if we simplify the second expression, the result isn't the same:

7(y×b)+3b

= 7(yb)+3b

=7yb + 3b

Therefore 7yb+3b≠7y+7b+3y

And even though you meant

7(y+b)+3b

=7y+7b+3b

=7y+10b

7y+10b≠10y+7b

5 0
2 years ago
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