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Serjik [45]
3 years ago
9

Anyone wanna help me with this??

Mathematics
1 answer:
elena-s [515]3 years ago
4 0

Answer:

1.c

2.b

3. c

4.d

Step-by-step explanation:

leave an brainlest!

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Find the length of side AB<br> Give answer to 3 significant figures
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Answer:

AB = 8.857 cm

Step-by-step explanation:

Here, we are given a <em>right angle</em> \triangle ABC in which we have the following things:

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Side <em>BC </em>is the hypotenuse here.

We have to find the side <em>AB</em>.

Trigonometric functions can be helpful to find the value of Side AB here.

Calculating \angle B:

Sum of all the angles in \triangle ABC is 180^\circ.

\Rightarrow \angle A + \angle B + \angle C = 180^\circ\\\Rightarrow 90^\circ + \angle B + 41^\circ = 180^\circ\\\Rightarrow \angle B = 49^\circ

We know that <em>cosine </em>of an angle is:

cos \theta = \dfrac{\text{Base}}{\text{Hypotenuse}}\\\Rightarrow cos B = \dfrac{AB}{BC}\\\Rightarrow cos 49^\circ = \dfrac{AB}{13.5}\\\Rightarrow AB = 13.5 \times 0.656\\\Rightarrow AB = 8.857 cm

So, side AB = 8.857 cm .

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2 years ago
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ivann1987 [24]

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Neither the scene nor the positions of the cameras are shown....

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The associative property changes the ____ of three addends or factors.
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