3 years ago

If CB =3(x+8) and AD= 4(x+3), find AB

Mathematics

1 answer:

kkurt [141]3 years ago

6 0

CD=CA+AB+BD

AB=CD-CA-BD

AB=CD-BD-BD

AB=CD-2.BD

AB=CD-2(BC+CD)

AB=CD-2BC-2CD

AB=-(CD+2BC)

AB=-{98-6(x+8)}

AB= 6x-50

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Viktor [21]

Answer:

$x =\sqrt 5$

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Step-by-step explanation:

Given

The attached triangle

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$\cos(45) = \frac{y}{\sqrt{10}}$ --- cosine formula i.e. adj/hyp

Solve for y

$y = \sqrt{10} * \cos(45)$

In radical form, we have:

$y = \sqrt{10} * \frac{1}{\sqrt 2}$

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To solve for x, we make use of Pythagoras theorem

$x^2 + y^2 = (\sqrt{10})^2$

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$x^2 =10-5$

$x^2= 5$

Solve for x

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3 years ago

mike says 3/3 of his fraction model is shaded blue. Ryan says 6/6 of the same model is shaded blue . are the two fractions equiv

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Since 20% or 1/5, is ___, there will be ___ word problems on the test

VARVARA [1.3K]

Answer:

Step-by-step explanation:

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Answer:

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Step-by-step explanation:

If we're seeing how much pizza they both ate, we would add them together.

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$\frac{5}{15}+ \frac{3}{15}$

add

$\frac{7}{15}$

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3 years ago