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Tema [17]
2 years ago
8

For the rectangle shown, which equation can be used to find the value of x?

Mathematics
2 answers:
sweet-ann [11.9K]2 years ago
7 0

Answer:

The 4th one: 3^2 + 13^2 = x^2

Step-by-step explanation:

The <u>pythagorean theorem</u> is a^2  + b^2 = c^2. In this case 3 is a, 13 is b, and x is c.

happy to help

saw5 [17]2 years ago
6 0
Actually a is 3, b is x, and 13 is c. the c is always across from the right angle
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(-2,9), (0,1) what is the y-intercept?
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Step-by-step explanation:

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The sides of a triangle are x , x +1 , 2 x -1 and its area is x root of 10 .Find the value of x.
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Ok, I'm going to start off saying there is probably an easier way of doing this that's right in front of my face, but I can't see it so I'm going to use Heron's formula, which is A=√[s(s-a)(s-b)(s-c)] where A is the area, s is the semiperimeter (half of the perimeter), and a, b, and c are the side lengths.

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Simplify:

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<span>x√10=√[2x(x)(x-1)(1)]</span>

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<span>x√10=√(2x³-2x²)</span>

<span>10x²=2x³-2x²</span>

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<span>x=0 or x=6</span>

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6 0
3 years ago
((60 points to whoever answers all of these))
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lubasha [3.4K]

Answer:

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Step-by-step explanation:

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