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Mandarinka [93]
2 years ago
13

Question 3 (1 point) Find the value of x for the right triangle. 15 30° Х

Mathematics
1 answer:
Marina86 [1]2 years ago
6 0

Answer:

x = 8.7

Step-by-step explanation:

Reference angle = 30°

Opposite side length = x

Adjacent side length = 15

Apply trigonometric function, TOA:

Tan 30° = Opp/Adj

Plug in the values

Tan 30° = x/15

Multiply both sides by 15

15*Tan 30° = x

8.66025404 = x

x = 8.7 (nearest tenth)

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Which ordered pair is the solution to the system of equations?
SOVA2 [1]
To find the solution, we use the substitution method. 

x+y=-1
<span>x-3y=11
</span>
x+y = -1-y
  -y       

x = -1-y

Now apply the value of x into the other equation.

x-3y=11
-1-y-3y = 11

Combine like terms

-4y -1 = 11
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Now, apply the value of Y to one equation to find x.

y = -3

x -3 = -1
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Now we have the value for both, x and y.
x = 2
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Final answer: A. <span>(2, −3)</span>
3 0
3 years ago
What’s 4x + 7y + 4 + 5x + y
fomenos

Hello!

Okay, so first we need to add like terms... so first, add the terms with the same variables. That gives us:

9x + 7y + 4 + y

Now add 7y and y

That gives us:

9x + 8y + 4

This can't be added anymore... this is as far as we can go because they are no longer like terms.

6 0
2 years ago
Read 2 more answers
What is the fourth term of a number pattern that begins with 250 and subtracts 13? A. 211 B. 224 C. 198 D. 302
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Create the equation:

250-13x

Plug in 4 for the equation and solve:

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3 years ago
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Answer:

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Trava [24]

Answer:

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the total of angel in 90°

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3 0
3 years ago
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