Find the measure of the indicated angle to the nearest degree.

Answers

Answer 1

Answer: you would do sin ? = opposite / hypotenuse so sin? = 3/9 and to fin the angle you would do sin^-1(3/9) = ? so ? = 19.47 degrees. make sure your calculator is in degree mode

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Simply the expressions1. 4x + x + 3 + 8x

2. 9x - 5x + x - 3x

3. 5a - 4b + 2c - 3b - 6c + a

Answers

Answer:

1) 13x + 3

2) 2x

3) 6a -7b -4c

Step-by-step explanation: If its wrong; Just know its not far away from right. :()

2+7x=4-3x I need help solving

Answers

X=1 for the first equation for the second X=9 Because 2+7=9*1=9 then you do 4-3=1*9. GOOD LUCK!(:

   2 + 7x = 4 - 3x
      + 3x + 3x
   2 + 10x = 4
- 2    - 2
   10x = 2
      10 10
   x = 0.2

Find the percent of decrease from 22 songs to 12 songs. Round to the nearest tenth of a percent if necessary.percent of decrease %

Answers

Answer:45.5% decrease????

Step-by-step explanation:

Please help me... I don't understand why I got it wrong(

Answers

You did the first step correctly ... even admirably !
You zeroed in on finding 'x' with laser-like precision, and
you knocked it out of the park.
Then, from there ... you fell off the deep end.

There's no reason that (3x + 18) has to be equal to 2(y+6).
In fact, they add up to 180°, so you could have used that
and solved for 'y'.

BUT ... (5x + 2) and 2(y+6) are "vertical angles", and THEY
are equal.

So 2 (y+6) = 5x + 2

2 (y+6) = 102

(y+6) = 51

y = 45 .

You got the answer y=78 by substituting x=20 into the top angle, 3x+18.
But the angle 3x+18 is not equal to the angle with the y variable.
They are supplementary angles (equal 180) but are not necessarily equal.
The angle that equals 2(y+6) is the angle opposite to it, 5x+2 (Vertical angle theorem).
So you should have substituted 20 into 5x+2

David received $50 dollars for working at his father’s store. He spent $20 dollars at the movies, and $10 dollars buying comic books. After buying $5 worth of candy, he saved the rest. What is the ratio of the amount of money David spent to the amount that David saved?

Answers

Total amount of money received by David for working at his father's store = $50
Amount of money spent by David at the movies = $20
Amount of money spent by David buying comics books = $10
Amount of money spent by David buying candy = $5
Then
Total amount spent by David = (20 + 10 + 5) dollars
       = 35 dollars
Amount of money saved by David = (50 - 35 ) dollars
   = 15 dollars
So
The ratio of the amount of money David
spent to the amount of money David saved = 35:15
      = 7:3
So the ratio of the amount of money David spent to the amount of money David saved is 7:3

PLLLLEEEEEAAASEEE HELP ME!!!

Answers

The total of a triangle must be 180 degrees, so since c = z, then z is 35 degrees, add that to the 65 degrees of angle x to get 100, so the angle must be an 80 degrees, so angle y is 80 degrees

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