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Serggg [28]
3 years ago
8

Find the exact value of x

Mathematics
1 answer:
tresset_1 [31]3 years ago
6 0

ΔABC and ΔCBD are similar. Therefore we have the proportion:

\dfrac{AB}{BC}=\dfrac{BC}{BD}\\\\AB=6;\ BC=x;\ BD=2

Substitute:

\dfrac{6}{x}=\dfrac{x}{2}    <em>cross multiply</em>

(x)(x)=(6)(2)\\\\x^2=12\to x=\sqrt{12}\\\\x=\sqrt{4\cdot3}\\\\x=\sqrt4\cdot\sqrt3\\\\\boxed{x=2\sqrt3}

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Step-by-step explanation:

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3 years ago
Simplify [3(4-2)]x(16-4x3)PLS HURRY!!!!!!!!!
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Answer:6x*4

Step-by-step explanation:

(12-6)x(16-12)

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two sides of a triangle have the same length. the third side measures 6 m less than twice the common length. the perimeter of th
Y_Kistochka [10]

Let x be the length of the two sides that are the same.

Then the third side would be 2x -3.

The perimeter of the triangle will come from adding all of the sides together and setting it equal to the value given, 13.

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the length of each of the common sides is 4, making the third side 5, to get a total perimeter of 13.

<h3>What are two sides of a triangle?</h3>

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5 0
1 year ago
1. Ima Thief robs a bank and takes off in a getaway car. Five minutes Polly Srule takes off after Ima.
chubhunter [2.5K]

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a. 12 minutes

b. 34 minutes

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Here, we are told that Ima has driven 5 minutes before Polly started driving

So if Ima has driven for x minutes , polly would have driven for y minutes but the difference between x and y is 5

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x = y + 5

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Answer:

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