The length of the bottom beam =9.16 feet
<h3>What is Pythagoras theorem?</h3>
the well-known geometric theorem that the sum of the squares on the legs of a right triangle is equal to the square on the hypotenuse.
Given : Total length of arm = 3.4+3.4=6.8 ft
Applying Pythagoras in triangle on right side we have,
H²=P²+ B²
6.8²= P² + 4.8²
46.24= P² +23.04
P²= 23.2
P= 4.81 feet
Similarly, on the triangle on left side.
Again we have the base as 4.81 feet.
Now, the length of the bottom beam= 4.81*2
=9.16 feet
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The equation which represents a system with infinitely many solutions is;
<h3>What system of equations have infinitely many solutions as in the task content?</h3>
The condition for a situation in which case an equation has infinitely many solutions is such that the right hand side and left hand side of the equation are equal.
On this note, it follows that the answer choices which represents the equations with infinitely many solutions is;
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The least common multiple between 3 and 4 is 12, so we can use this fact to rewrite both 1/3 and 1/4 in 12ths:

We're left with an answer of
7/12, which can't be reduced.
Need points sorry but hope u get the right answer
Step-by-step explanation:
y=-2x²-25x+10
=x²+25/2x-5