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ANTONII [103]
2 years ago
15

HELP!! PLEASE!!!!!

Mathematics
2 answers:
aleksandr82 [10.1K]2 years ago
5 0

Answer:

Isolate the variable by dividing each side by factors that don't contain the variable.

n=5, -5

8090 [49]2 years ago
4 0

Answer:

n=\frac{3i\sqrt{22}-2}{-8}

Step-by-step explanation:

(2-8n)^2=-198

\sqrt{(2-8n)^2} =\sqrt{-198}

2-8n=i\sqrt{198}

2-8n=3i\sqrt{22}

-8n=3i\sqrt{22} -2

n=\frac{3i\sqrt{22}-2}{-8}

I hope this helps!

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3 years ago
Can anyone plz explain the permutation formula in math? and plz make it simple because I'm just a 7th grade student​
mixas84 [53]

Answer:

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What is the domain of the fraction​
nikitadnepr [17]

The domain is the set of all x-values in that table:

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2 years ago
Last one, use trigonometry to help you solve for y given that one side is 4 and there is an angle of 50 degrees.
Ostrovityanka [42]

Answer:

y = 6.22

You can solve this in two ways.

1.) Use SOH CAH TOA:

I typically start off by labeling the sides of the triangle with H (hypotenuse), O (opposite), and A (adjacent). Because I need to figure out what y is when given an angle and 4, I will use CAH, or cosine.

\cos(angle)  =  \frac{adjacent}{hypotenuse}

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y = 6.22

2.) Use Law of Sines:

Solve for the last angle inside the triangle first.

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Then use the angle you found (40°) in the equation.

\frac{4}{ \sin(40) }  =  \frac{y}{ \sin(90) }

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3 0
3 years ago
HELPP
LenaWriter [7]
F, D, C
F: 5 x 3 = 15
D: 7 x 3= 21 - 2 = 19
C: 5 x 3 = 15 + 6 = 21
6 0
3 years ago
Read 2 more answers
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