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SIZIF [17.4K]
3 years ago
7

Can somebody explain why 8/17 is correct. Will make brainliest.

Mathematics
1 answer:
irina1246 [14]3 years ago
8 0

Answer:

8/17 is correct because cosine = adjacent/hypotenuse, and since angle A is theta, or the reference angle, the adjacent of A would be 8, and the hypotenuse is always across the right angle.

15/17 would be sine instead of cosine

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-7 = -1 + x/3, solve and explain with an algebraic property
k0ka [10]
-7 = -1 +  \frac{x}{3}

Multiply both sides by 3 :

-3*1 + 3* \frac{x}{3}  = -3*7

Refine:

x - 3 = -21

x = - 21 + 3

x = - 18

hope this helps!.
4 0
3 years ago
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What is the value of x?
Tom [10]

Answer:

x=21

Step-by-step explanation:

100+3x+x-4=180

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2 years ago
What is the solution to f(x)=8^5/3
11111nata11111 [884]

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5 0
3 years ago
I have the answer here
NISA [10]
So what do u need help on??
6 0
2 years ago
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If y = kx, what is the value of k if y = 20 and x = 0.4? A) 5 B) 8 C) 9.6 D) 50
Margaret [11]
Answer: D, 50
y = kx          <span>y = 20 and x = 0.4
</span>
What you will do: You will plug in your y and your x.
Your equation should look like: 20=k(0.4)
Next: What you will do is divide each side of your equal sign by 0.4 so you will get your k alone.
You would get: k=50

HOPE THIS HELPS! ^_^
  
7 0
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