3 years ago

Pls help below, pls help

Mathematics

1 answer:

lilavasa [31]3 years ago

6 0

I think the first one coefficients...

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Kazeer [188]

Answer:

(19,4)

Step-by-step explanation:

M is the average of R and S:

(19+20)/2 = 19.5

(4+15)/2 = 9.5

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How many timnes does 43 go into 93

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After that, there's only room for another 7 inside the 93,
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What is the domain of f(x)=5^x?

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3 years ago

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If BD = 4, AD = x-6, and CD = x, what is the length of CD?

emmainna [20.7K]

Answer:

The length of CD is 8 units

Step-by-step explanation:

<u><em>The complete question in the attached figure</em></u>

we know that

According to the Right Triangle Altitude Theorem,

$(BD)^2 = (AD)(CD)$

substitute the given values

$(4)^2 = (x-6)(x)$

$16=x^2-6x\\x^2-6x-16=0$

solve the quadratic equation by graphing

The solution is x=8 or x=-6

see the attached figure N 2

Discard the negative length.

therefore

The length of CD is 8 units

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3 years ago