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3 years ago

What is the value of x?

Mathematics

1 answer:

Hitman42 [59]3 years ago

4 0

$\triangle ABD\sim\triangle CAD\ \text{therefore the sides of triangles are in proportion}\\\\\dfrac{x}{12}=\dfrac{12}{27}\ \ \ |cross\ multiply\\\\27x=144\ \ \ |:27\\\\x=\dfrac{144}{27}\\\\x=\dfrac{16}{3}\\\\\boxed{\text{Answer:}\ B.\ \dfrac{16}{3}}$

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Answer:

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Step-by-step explanation:

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3 years ago

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3 years ago

Using the quadratic formula, what is the value of x for x^2-4+5=0

PSYCHO15rus [73]

value of x is: x= i and x= -i

Step-by-step explanation:

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Keywords: Quadratic formula

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3 years ago

How long can the run be made?

defon

Answer:

$L=15\ m$

Step-by-step explanation:

we know that

The perimeter of rectangle is equal to

$P=2L+2W$

In this problem we have

$P=42\ m$

$W=6\ m$

substitute in the formula and solve for L

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simplify

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3 years ago

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3 years ago