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Alex777 [14]
3 years ago
5

Numbers 16 && 18 please??

Mathematics
1 answer:
Len [333]3 years ago
3 0
16.

{ (6x^3)/(3x^4)}^2

= (2/x)^2

=(4)/(x^2)

so, option A is correct

18.

option C is the correct one.
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The figure shown models a roof truss. Based on the markings, is there enough information to prove that ΔACD ≅ ΔBCD?
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Answer:

C

Step-by-step explanation:

Yes, ACD = BCD by AAS since they have 2 congruent angles & share a side.

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2 years ago
How do you write 21% as a decimal
Goshia [24]

Answer:

0.21

Step-by-step explanation:

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2 years ago
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Need help GET BRAINLISTS #8
gladu [14]

Answer: 6.7 mm

Step-by-step explanation:

The area of a square is equal to side(side), but is also equal to 1/2(apothem)(perimeter).

The apothem is the perpendicular distance from the center of the square to the midpoint of its side.

We can use these formulas to find the apothem and use the pythagorean theorem to find the hypotenuse (slant height).

Area of square = 9(9) = 81

Area of square = 1/2(apothem)(perimeter)

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81 = 1/2(apothem)(36)

162 = apothem(36)

apothem = 4.5

Pythagorean theorem: a^{2} + b^{2}  = c^{2}

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20.25 + 25 = x^{2}

x = \sqrt{45.25}

x ≈ 6.7

5 0
3 years ago
PLEASE HELP ME!!!!!!!!<br>does anyone know how to do this I am clueless please help
vredina [299]
Maybe this will help! (:
https://youtu.be/1wPJfzStBqE
6 0
3 years ago
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Lubov Fominskaja [6]

Answer:

x: -8, -4, 0, 4

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