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3 years ago

13

Am i doing it right..if not explain why. And if i am help me thru the other process 21 points

2 answers:

Rzqust [24]3 years ago

8 0

You should probably have brackets () around the 4x+25º

Aliun [14]3 years ago

8 0

A triangle's angles sum equals 180°. Try using this equation: 30+4x+25+25=180. Use this equation to find the value of x. Then plug x into 4x+25 to find the measure of Y.

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I NEED HELP PLEASE, THANKS! :)

Afina-wow [57]

Answer:

Third option is the right choice.

Step-by-step explanation:

Manipulate the right hand side.

$\sec \left(x\right)\\\\=\frac{1}{\cos \left(x\right)}\\\\\mathrm{Use\:the\:following\:identity}:\quad \:1=\cos ^2\left(x\right)+\sin ^2\left(x\right)\\\\=\frac{\cos ^2\left(x\right)+\sin ^2\left(x\right)}{\cos \left(x\right)}\\\\\Rightarrow \mathrm{True}$

Best Regards!

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3 years ago

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Elan Coil [88]

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3 years ago

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Solve for x.<br> 6 - 4x = -22

Kitty [74]

Answer:

x = 7

Step-by-step explanation:

6 - 4x = -22

-6 - 6

-4x = -28

x = -28/-4

x = 7

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3 years ago

Solve the equation 5n+7=21

Simora [160]

Answer:

Hi there, I believe the answer to this equation is: 2.8

Step-by-step explanation:

Subtract 7 on both sides so

5n+7=21-7

you are left with 5n=14 you need to get n by itself so divide 5 on both sides.

5n/5 = 14/5

n=2.8

Hope this is correct :)

Have a great day

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Firlakuza [10]

Answer:

the leanth of the track is 1/2 miles long.

Step-by-step explanation:

Im sorry that i couldn't complete all the questions, I had a family thing to go to so sorry.

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