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Karo-lina-s [1.5K]
2 years ago
13

Help im being timed plssss

Mathematics
1 answer:
mamaluj [8]2 years ago
5 0

The value of cos 45 in a right angle triangle is 1/√2.

<h3 /><h3>What is the trigonometry ratio?</h3>

The trigonometry ratios are ratios that can be used to determine the side and angles of a triangle depending on the known parameter. The basic trigonometry ratios are denoted by the acronym: SOH CAH TOA

i.e.

  • Sin θ = opp/hyp
  • Cos θ = adj/hyp
  • Tan θ = opp/adj

From the given diagram, we are to find the Cos 45°

i.e.

θ = 45°

Let's recall the angle 45 45 90 theorem that states that right angles have the following values for the sides:

  • hypotenuse = √2
  • opposite = 1
  • adjacent = 1

Since

Cos θ = adj/hyp

Cos 45 = 1/√2

Learn more about trigonometry functions here:

brainly.com/question/24349828

#SPJ1

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Check all of the ordered pairs that satisfy the equation below.
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Answer:

A, C, E

Step-by-step explanation:

Plug in x for each point and compare it to the y

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For example:

A. y = 2/5 (30) = 12 --> this means when x = 30, y = 12. Therefore, the point (30,12) is correct.

B. y = 2/5 (25) = 10 --> when x = 25, y = 10. This doesn't match with the answer choice, therefore, it is incorrect and not satisfy the equation.

so on and so on for the rest of it :)

Answer:

A. y = 2/5 (30) = 12 --> correct

B. y = 2/5 (25) = 10 --> incorrect

C. y= 2/5 (10) = 4 --> correct

D. y = 2/5 (40) = 16 --> incorrect

E. y = 2/5 (50) = 20 --> correct

F. y = 2/5 (14) = 5.6 --> incorrect

8 0
3 years ago
2x - 5 + ¾ (4x - 8) =19
rosijanka [135]

It would most likely equal to 6. Hope this helped.

Step-by-step explanation:

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Answer:

(m+5)(m-9)=0

Step-by-step explanation:

you set each of them equal to zero,

m+5=0

m-9=0

and solve for 'm'

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Answer: the answer is B or 2

Step-by-step explanation:

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Plz help..................refresh page before u answer
Zepler [3.9K]
= 3x(x^2-9)
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answer is B. second choice
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