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Dafna1 [17]
4 years ago
13

Jack cut a piece of wood that was 8 feet long into two pieces. One piece is three times as long as the other. How long is the sh

orter piece of wood? A. 1 foot long B. 2 feet long C. 4 feet long D. 3 feet long
Mathematics
1 answer:
Dmitry_Shevchenko [17]4 years ago
7 0
The answer is B, 2 feet long. If you multiply 2 by 3, you get 6. If you add 2 plus 6, you get 8.

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A guy wire for a suspension bridge runs from the ground diagonally to the top of the closest pylon to make a triangle. We can us
PolarNik [594]

Answer:

The guy wire lenght is 500 ft.

Step-by-step explanation:

The Pythagorean Theorem says the sum of the squares two adyacent sides is equal to the square of the opposite side.

Applied in this example, we can rephrase it as:

The sum of the square of the pylon height with the square of the distance from the guy wire tip to the pylon is Equal to the  square of the Guy wire lenght.

So:

PylonHeight^{2}  + floordistance^{2} = GuyWireLength^{2} \\160.000 + 90.000 = GuyWireLength^{2} \\\\\sqrt{160.000 + 90.000} =GuyWireLength\\GuyWireLength= 500 ft

4 0
4 years ago
These triangles are similar.<br> True<br> Or<br> False
iren2701 [21]

Answer:

<u><em>True</em></u> because they both are triangles, they both have tree side but one is just smaller than the other.

3 0
3 years ago
What is the perimeter of a square whose diagonal is 3 radical 2
k0ka [10]

a square is made up of 2 congruent right triangles with the same leg length. we use the Pythagorean theorem to find the length of one of these legs. a^2+b^2=c^2, but we know that the legs are equal in length, so we have 2a^2=(3rad2)^2

2a^2=9*2

a^2=9

a=3

square is made up of 4 of these, so 4*3=12

the perimeter is 12

7 0
3 years ago
Help me simplify these both PLEASE
sleet_krkn [62]
15.) 12a^11y^12/4a^5y^8
=12a^6y^4/4
=3a^6, y^4

16.)(2p^10z)^3
      =8p^30 z^3

Your welcome love! :)
7 0
3 years ago
Which decimal is greater 6.128 or 6.826
Lunna [17]

Answer:

6.826 is greater

Step-by-step explanation:

6.826 is greater than 6.128 by 0.698

7 0
3 years ago
Read 2 more answers
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