DG¯¯¯¯¯¯ , EG¯¯¯¯¯ , and FG¯¯¯¯¯ are perpendicular bisectors of the sides of △ABC . BE=3 cm and GE=4 cm.

Mathematics

2 answers:

joja [24]4 years ago

8 0

The answer to your question is 5cm.

puteri [66]4 years ago

6 0

Answer:

your answer is 5.

Step-by-step explanation:

all the sides are the same because of the right angle signs; that means the lines are 90 degrees and are midway markers in this triangle. for example, the midway markers mean EC is 3 as well, and BEC is 6, since 3+3=6.

so since we know ge is 4, and we know be is 3, we know ad = be and dg = eg. find the hypotenuse of these two bad boys. a^2+b^2=c^2.

now plug in variables: 3^2+4^2=ag^2. 9+16=25. find the square root of the hypotenuse (because we need ag, not ag^2). your answer is five, and you're done. :)

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Can you please solve and explain how

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First, it would help to simplify each side more:

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12x + 9 = 2cx + c + 25

Usually when there is no solution, the coefficients of the variable on both sides are the same, so we can make the coefficient if x on the right side into 12:

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3 years ago

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The equation is:
$0=-9.8t^2+v_0t+h_0$
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We will use the quadratic formula to solve this. The quadratic formula is:
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Plugging in our information we have:
$t=\frac{-42\pm \sqrt{42^2-4(-9.8)(0)}}{2(-9.8)}
\\
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\\
\\=\frac{-42\pm \sqrt{1764}}{-19.6}
\\
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\\
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\\
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Yuki888 [10]

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