8. Kane has 4 pieces of wood available to build a triangle-shaped garden.

Mathematics

1 answer:

Aleks04 [339]3 years ago

6 0

I think is the last one :;:;;::::::)

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Find the length of DE. Round to the nearest hundredth. (Picture included)

LenKa [72]

Notice the picture
we have, the opposite side
the angle
and we want the hypotenuse

so recall your SOH CAH TOA $\bf sin(\theta)=\cfrac{opposite}{hypotenuse}
\qquad \qquad 
% cosine
cos(\theta)=\cfrac{adjacent}{hypotenuse}

\\ \quad \\\\
% tangent
tan(\theta)=\cfrac{opposite}{adjacent} =$

which one has all that? low and behold, is Ms Sine,
so let's bother Ms Sine

$\bf sin(\theta)=\cfrac{opposite}{hypotenuse}\implies sin(27^o)=\cfrac{18}{hypotenuse}
\\\\\\
hypotenuse=\cfrac{18}{sin(27^o)}$

make sure your calculator is in Degree mode, since the angle here is in degrees, as opposed to Radian mode

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3 years ago

How can you find 75% of any number?

Aleks04 [339]

Answer:

Step-by-step explanation:

Multiply it by 0.75, or find 3/4 of that number. Whichever you prefer! The first one always works though the second one sometimes does but sometimes 3/4 of the number isn't that obvious.

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3 years ago

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Please help ASAP

Alisiya [41]

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Erin's family went to Disney world when Erin was 11 yrs old and her sister was 3. This year Erin's age is double if her sister.

atroni [7]

The Disney trip was 5 years ago. Now, Erin is 16 and her sister is 8.

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zvonat [6]

Step-by-step explanation:

x² + 3x + 2

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By taking out common terms, we get

x(x+1)+2(x+1)

(x+1)(x+2)

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