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3 years ago

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 Give answer to 3 significant figures

Rina8888 [55]

Answer:

AB = 8.857 cm

Step-by-step explanation:

Here, we are given a right angle $\triangle ABC$ in which we have the following things:

$\angle A = 90 ^\circ\\\angle C = 41 ^\circ\\\text{Side }BC = 13.5 cm$

Side BC is the hypotenuse here.

We have to find the side AB.

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 cosine 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 .

6 0

3 years ago

MARKING BRAINIEST HURRY UP****

ivann1987 [24]

Answer:

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

Without more detail of the problem, it would seem three different cameras would show the same scene only if they were all in exactly the same place, which is not possible.

Step-by-step explanation:

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3 years ago

Generate a line up for the 9players on a ball team

Setler79 [48]

Answer:

do a 3 by 3

Step-by-step explanation:

three across and three up

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3 years ago

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