3 years ago

What does x equal ? This is similarity

1 answer:

6 0

First, let's find the scale of the smaller to the bigger triangle:

6:6+4 = 6:10 = 3:5

3/5 = x/2

6 = 5x

x = 6/5

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Irina-Kira [14]

$x^3 + x^2 - 20x=0\\
x(x^2+x-20)=0\\
x(x^2+5x-4x-20)=0\\
x(x(x+5)-4(x+5))=0\\
x(x-4)(x+5)=0\\
x=0 \vee x=4 \vee x=-5$

4 0

3 years ago

aleksklad [387]

You are looking at right angles in the problem. Right angles are 90 degrees.

So set up the problem to solve for X using:

90=4x+12

90-12=4x

78=4x

39/2 or 19.5 = x

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3 years ago

mixas84 [53]

Answer:

Step-by-step explanation:

sin 31 = 42/x

x sin 31 = 42

x = (sin 31)/42

6 0

3 years ago

koban [17]

The answer is B.....

4 0

3 years ago

azamat

Yea its is reasonable. Hope i helped :)

3 0

3 years ago