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andreev551 [17]
3 years ago
8

Please help me with these questions and show how u found them! i will mark you brainliest

Mathematics
1 answer:
natta225 [31]3 years ago
4 0

Answer:

Step-by-step explanation:

i know that number 9 is 8

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Use the triangle below and the given trigonometric ratio to determine which angle in the triangle below is
4vir4ik [10]
Cosine is the ratio of the adjacent side to the hypotenuse.

In short, we have this equation
cos(angle) = adjacent/hypotenuse

In the case of cos(A) = 18/19.5 we can see that
adjacent = 18
hypotenuse = 19.5

The side of 18 cm is next to angle 2, so the 18 cm side is adjacent to angle 2 (in contrast, the 7.5 cm side is the opposite leg in relation to angle 2)

So that's why the answer is angle 2
In other words, replace the '2' angle marker with 'A' to be able to write cos(A) = 18/19.5
7 0
3 years ago
Please help need an answer by today
love history [14]
We don't know what the question is.

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If that's the question, then . . .

Since the store marks up their cost by 60% before they sell
the thing, the price they sell it for is

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You know their cost.  The selling price is   (1.60  x  $80) .    
8 0
3 years ago
Evaluate.<br> 43 – 4:25<br> ο<br> ο<br> ο<br> ο
meriva

This is an improper. Perhaps you can fix it, so that I can assist you with it? I apologise.

4 0
3 years ago
Solve the equation for 0° ≤ x ≤ 90°. Round to the nearest degree. tan^2 B = 4
Anettt [7]

<u>ANSWER</u>

B=63\degree


<u>EXPLANATION</u>

We want to solve the trigonometric equation;


tan^2(B)=4, where 0\degree \le B \le 90\degree.


Taking square root of both sides gives,


tan(B)=\pm \sqrt{4}


tan(B)=\pm 2


Since B is in the first quadrant, we proceed with;


tan(B)=2, because the tangent ratio is positive in the first quadrant.


\Rightarrow B =arctan(2)


\Rightarrow B =63.43\degree.


Correct to the nearest degree,


B =63\degree




7 0
3 years ago
The average weight of the top 5 fish at a fishing tournament was 13.6 pounds. Some of the weights of the
lapo4ka [179]

Answer:  Carla P.  15.1

Step-by-step explanation:

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