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geniusboy [140]
3 years ago
9

What is the decimal representation of 2/ 10

Mathematics
1 answer:
kondor19780726 [428]3 years ago
3 0
To represent 2/10 it can be 0.20 or 0.2
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3 years ago
Plato wonders of these triangles are congruent.
yanalaym [24]

Answer:

Step-by-step explanation:

∠D ≅ ∠R

DC ≅ RK

So, If ∠C ≅ ∠K,

Then ΔDCS ≅ ΔRKO  by   Angle Side Angle congruent.   {A S A}

OR

DC ≅ RK

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If SD ≅ OR , then

ΔDCS ≅ ΔRKO   by Side Angle Side   congruent  {S A S}

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What additional information is needed to prove that the triangles are congruent using the AAS congruence theorem?
Kaylis [27]

Answer:

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8 0
3 years ago
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(6x2 - 4x – 5) – (3x2 – 7x + 2)
galben [10]

Answer: 3x2 + 3x - 7

Step-by-step explanation: The first term is,  3x2  its coefficient is 3

The middle term is, +3x  its coefficient is 3

The last term, the constant, is  -7

1.Multiply the coefficient of the first term by the constant   3 times -7 = -21

2. Find two factors of  -21  whose sum equals the coefficient of the middle term, which is 3

5 0
3 years ago
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If I add the square of a number<br> to the number itself, I get 30.<br> What could the number be?
Wittaler [7]

Answer:

I know you could easily solve this just looking at it.

But if you want the algebraic solution:

x + x^2 = 30

x^2 + x -30 = 0

a = 1  

b = 1

c = -30

Using the quadratic formula:

x = [ -b +- sqr root (b^2 - 4ac) ] / 2a

x = [-1 +- sqr root (1 - 4 * 1 -30) ] / 2*1

x = [-1 +- sqr root (1 + 120) ] / 2

x = -1 +- sqr root (121) / 2

x1 = (-1 + 11) / 2 = 10 / 2 = 5

x2 = (-1 -11) / 2 = -12 / 2 = -6

Answers are 5 and -6

5 + 5^2 = 30

-6 + (-6)^2  = 30

-6 +36  = 30

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
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