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3 years ago

In the diagram below ABC DEC what is the value of x

Mathematics

2 answers:

mamaluj [8]3 years ago

7 0

$\bf \triangle ABD\sim \triangle DEC\implies \cfrac{AB}{ED}=\cfrac{AC}{CD}\implies \cfrac{42}{x}=\cfrac{6}{32-x}\implies 42(32-x)=6x \\\\\\ 1344-42x=6x\implies 1344=48x\implies \cfrac{1344}{48}=x\implies 28=x$

Lyrx [107]3 years ago

5 0

the answer is 28!!!!

Step-by-step explanation: idk

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HELP “The vertical supports in this truss bridge are built so that

ElenaW [278]

Answer:

The statement that is not true is;

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Step-by-step explanation:

With the assumption that the lengths AO, and OD are equal, we have that in ΔABO and ΔOCD, the following sides are corresponding sides;

Segment AO on ΔABO is a corresponding side to segment OD on ΔOCD

Vertices B and C on ΔABO and ΔOCD are corresponding vertices

Therefore;

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Therefore, ∠ABO on ΔABO is the corresponding angle to ∠OCD on ΔOCD

Given that ΔABO ≅ ΔOCD, we have that ∠ABO ≅ ∠OCD

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2 years ago

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Ipatiy [6.2K]

Answer:

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Step-by-step explanation:

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3 years ago

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Vlad1618 [11]

Answer:

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Step-by-step explanation:

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2 years ago

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ikadub [295]

Answer:

y(0) = 0.25 feet

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Step-by-step explanation:

We are given the following information in the question:

The displacement from equilibrium of an oscillating weight suspended by a spring =

$y(t) = \displaystyle\frac{1}{4} \cos(5t)$

where y is the displacement in feet and t is the time in seconds.

Here, cos is in radians.

1) t = 0

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$y(\frac{1}{4}) = 0.0789 \text{ feet}$

3) t = $\frac{1}{2}$

$y(\displaystyle\frac{1}{2}) = \displaystyle\frac{1}{4} \cos(5(\frac{1}{2})) = \frac{1}{4} \cos(2.5) = \frac{1}{4}(-0.80114362) = -0.200285905$

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2 years ago

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madam [21]

Answer:

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Step-by-step explanation:

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2 years ago