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3 years ago

Can someone help me with this???

Mathematics

2 answers:

Sedbober [7]3 years ago

7 0

It would be 47 degrees

Ymorist [56]3 years ago

5 0

Answer:

it's 47 degree answer of your question

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Pls help I will give you 15 points only

QveST [7]

N= 1/8 I’m pretty sure I did that last year

6 0

3 years ago

Find sin(x/2), cos (x/2), and tan(x/2) from the given information.

zhannawk [14.2K]

Step-by-step explanation:

sin(x/2) = sqrt((1 - cos(x))/2)

cos(x/2) = sqrt((1 + cos(x))/2)

tan(x/2) = sin(x/2)/cos(x/2)

sin(x) = 15/17

so, we can assume the Hypotenuse of the right-angled triangle is 17, the vertical leg is 15.

via Pythagoras we get the 3rd, horizontal side :

17² = 15² + side²

289 = 225 + side²

64 = side²

side = 8

cos(x) = 8/17

sin(x/2) = sqrt((1 - 8/17)/2) = sqrt(9/34) = 3/sqrt(34) =

= 0.514495755...

cos(x/2) = sqrt((1 + 8/17)/2) = sqrt(25/34) = 5/sqrt(34) =

= 0.857492926...

tan(x/2) = 3/sqrt(34) / 5/sqrt(34) = 3/sqrt(34) × sqrt(34)/5 =

= 3/5 = 0.6

6 0

2 years ago

2 1/2 ÷ 1/2= what is this answer

Anna11 [10]

Answer: 5

Step-by-step explanation:

5 0

3 years ago

X+3y=24<br><br> Please solve super fast

adoni [48]

Step-by-step explanation:

x+3y=24

3y/3=24/3

x+y=8

divide x to both side not to y

y=-x +8

5 0

3 years ago

Katie has read 34% of a book. If she read 85 pages, does she have more than or fewer than 125 pages left to read? Explain

mestny [16]

Determine the percent of book she hasn't read.
percent = 100% - percent she has read
percent = 100% - 34%
percent = 66%
She hasn't read 66% of the book.

Find the amount of page she hasn't read.
page = $\dfrac{\text{percent hasn't read}}{\text{percent has read}} \times\ \text{page has read}$
page = $\dfrac{66\%}{34\%} \times\ 85$
page = $\dfrac{66}{34} \times\ 85$
page = $\dfrac{5,610}{85}$
page = 165

The number of page she hasn't read is 165. It's more than 125.

3 0

4 years ago