2 years ago

Y= -4x+9; (-5, ), (2, ), (4, )

Mathematics

1 answer:

olganol [36]2 years ago

4 0

That’s a hard one there

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What is the length of CD ? In this diagram ABC EDC ? Please help !!!!

n200080 [17]

Answer:
CD = x = 4 units

Explanation:
We are given that the two triangles are similar. This means that we can set the similarity proportionality as follows:
$\frac{BC}{CD} = \frac{CA}{CE} = \frac{AB}{ED}$

W e have:
BC = 20 - x
AC = 20
CD = x
CE = 5

Substitute in the above proportionality and solve for x as follows:
$\frac{20-x}{x} = \frac{20}{5} = 4$

4x = 20 - x
5x = 20
x = 4

Based on he above:
CD = 4 units
BC = 20 - x = 20 - 4 = 16 units

Hope this helps :)

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I hope I helped you

Step-by-step explanation:

First you solve: 25:5=?

After: the number you find×8=?

And:?+5=?

The number -2

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We are told that f(x) = x + 2. We want to find $(f(x))^{2}$ .

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The answer is c, right 4 down 3

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