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Aliun [14]
3 years ago
6

Please help, trigonometry is hard for me

Mathematics
1 answer:
Vsevolod [243]3 years ago
6 0

Because the cos theta < 0 then theta must be an obtuse angle

so a^2 + b^2 < a^2

C

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In the game of​ roulette, a player can place a ​$8 bet on the number 17 and have a StartFraction 1 Over 38 EndFraction probabili
svp [43]

Answer:

Expected value of the game: -$0.421

Expected loss in 1000 games: $421

Step-by-step explanation:

There are two possible outcomes for the event:

- There is a 1 in 38 chance of winning $280

- There is a 37 in 38 chance of losing $8

The expected value for a single game is:

E(X) = \frac{1}{38}*\$280-\frac{37}{38}*\$8\\E(X)=-\$0.421

The expected value of the game is -$0.421

In 1,000 plays, the expected loss is:

L = 1,000*-\$0.421\\L=-\$421

You would expect to lose $421.

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2 years ago
Samantha is making soup. to make the broth, she combines 2/5 cup of vegetable stock and 2/3 cup of chicken soup stock. Boiling
iogann1982 [59]
First,you do,2/5+2/3,but since you will need a common denominator,you will find the least common denominator for 5 and 3.The LCD(Least Common Denominator) will be 15 since both 5 and 3 could go in 15.Now,the equation looks like this: 2/15+2/15 since whatever you do to the bottom numbers,you NEED to do to the top numbers:2 and 2.Now you will need to do,2x3,since 5x3=15 and the answer to 2x3=6 then you do 2x5,since 3x5=15 the answer is 10 now the equation looks like this:6/15+10/15 now you add them together,and the answer will be 16/15 and if you want the answer to be a mixed number,it would look like this: 1 1/15. Hope this helps!
5 0
3 years ago
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a pitcher contains 11.25 cups of iced tea. You drink 1.5 cups of the tea each morning and 0.75 cup of the tea each evening. When
stiks02 [169]

Answer:

<h2>You will run out of iced tea after <em><u>5</u></em> days.</h2>

Hope this helps! :)

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2 years ago
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If u spenpend 20 minutes a night doing homework how many seconds
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Answer:

1200 seconds per 20 minute study session

Step-by-step explanation:

20 min x 60 sec = 1200 seconds

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3 years ago
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X= -2,-1,0,1<br> Y= 4,1,0,1
Ganezh [65]

Answer:

12x + 3y = 15

Step-by-step explanation:

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