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Anon25 [30]
3 years ago
15

The diagonal of a tv is 28 inches long. Assuming that this diagonal forms a pair of 30-60-90 right triangles, what are the exact

length and width of the tv?
Mathematics
2 answers:
solmaris [256]3 years ago
8 0
30-60-90

shortest leg is always x ; longest leg is always x√3 ; hypotenuse is always 2x

hypotenuse = 28 inches = 2x = 2(14)
shortest leg = x = 14
longest leg = x√3 = 14√3

The exact length and width of the tv would be 14 inches and 14√3 inches.
lidiya [134]3 years ago
6 0

Answer:

14 inches by 14 square root of 3 inches

Step-by-step explanation:

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Given:
notsponge [240]

A line <u>bisector</u> is a <em>straight </em>line that <u>divides</u> a given line into two equal parts. Thus the following steps are required by Naomi to show that point D is <em>equidistant</em> from points  A and C.

BD ⊥ AC (given)

BD = 3 units, and AC = 8 units.

BD is the <em>perpendicular</em> bisector of <u>segment</u> AC (given)

Thus,

<BDA  ≅ <BDC <em>(right</em> angles formed by a <u>perpendicular</u> bisector)

AD ≅ DC <em>(equal</em> parts of a<em> bisected l</em>ine)

AD ≅ DC = 4 units

Thus joining <u>points</u> B to A, and B to C,

BA ≅ BC.

So that applying <em>Pythagoras</em> theorem to ΔABD, we have:

/hyp/^{2} = Adj 1^{2} + Adj 2^{2}

AB^{2} = 3^{2} + 4^{2}

       = \sqrt{25}

 AB      = 5 units

So that,

BA ≅ BC = 5 units

Therefore, it can be <u>concluded</u> that point D is <em>equidistant</em> from points A and C.

For more clarifications on a perpendicular bisector of a line, visit: brainly.com/question/929137

#SPJ1

3 0
2 years ago
I need some help...
bixtya [17]
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Question
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17x³ + (3x + 8x³<span>)

-------------------------------------
Remove the bracket
</span>-------------------------------------
17x³ + 3x + 8x³

-------------------------------------
Combine like terms
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25x³ + 3x

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Take out common factor
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x(25x² + 3)

-------------------------------------
Answer: x(25x² + 3)
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3 years ago
An advertisement reads all books 28 percent off a best-selling novel is originally priced at $18.99. About how much money will G
o-na [289]

28% of 18.99 is 5.2172


Because 18.99 * 0.28 = 5.2172 which can be rounded to 5.22


So Gio would save about $5.22.

3 0
3 years ago
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I need help on think through math
Sav [38]
The answer is the letter d
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What is the simplest form of 2(4x+y)+3(x-6y)+x^2​
kipiarov [429]

Answer:

8x+2y+3x-18y+x^2

final answer: x^2+11x-16y

*edited*

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3 years ago
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