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Hitman42 [59]
2 years ago
14

X + 2x = 15 Please help!!! Worth 20 points!!! I need an answer ASAP!!!

Mathematics
1 answer:
hram777 [196]2 years ago
5 0

Answer:

x=5

Step-by-step explanation:

x+2x=15

Combine like terms:

3x=15

Divide both sides by 3:

x=15/3=5

Hope this helps!

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Y+5=-(x+5) in standard form
swat32

1. y+5=-x-5

2. y=-x-5-5

3.y=-x-10

4. y=x-10

_______________________

1. distribute negative sign

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ΔABC has three sides with these lengths: AB = 9, BC = 40, and CA = 41. What is the value of cos C?
kotykmax [81]

Answer:

cos(C) =\frac{40}{41}\\\\cos(C)=0.976

Step-by-step explanation:

To find the cos (C) we must use the cosine theorem.

The cosine theorem says that:

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9^2- 40^2- 41^2 =-2(40)*(41)cos(C)

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cos(C) =\frac{40}{41}\\\\cos(C)=0.976

7 0
3 years ago
Plz hury plz What type of graph is best to use to organize numerical data based on their digits to compare value?
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Step-by-step explanation:

6 0
2 years ago
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Serjik [45]

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2/3

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2 years ago
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