1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Studentka2010 [4]
3 years ago
15

If sin150=1/2 then find sin75

Mathematics
1 answer:
Darya [45]3 years ago
3 0

Sin75° = Sin(30° + 45°)

= Sin30°.Cos45° + Sin45°.Cos30°

= 1/2 . √2/2 + √2/2.√3/2

= √2/2 ( 1/2 + √3/2 )

= √2/2 ((1+√3 ) /2 )

= (√2 + √6 )/ 4

You might be interested in
63n^3+54n^2-105n-90<br> Please help me factor by grouping
Zinaida [17]

Answer:3(7n+6)(3n^{2}-5)

Step-by-step explanation:

5 0
2 years ago
Please help me. If you don't know the answer don't respond<br> I need a correct answer
kozerog [31]

Answer:

Step-by-step explanation:

Remark

You have to guess what the question is. I'm assuming that it is either the black triangle to the blue one or the blue one to the black one. Be careful when you post a question to see if you have included a question.

Answer

<em>Ratio of blue to black</em>

The distance of the left most point of the blue triangle to the y axis is 3. The same point on the black one is 1

blue/black = 3/1

<em>Ratio of black to blue</em>

ratio of the black triangle to the blue one is 1/3

The answer will depend on the question. Notice that the two answers are reciprocals.

6 0
3 years ago
Hhhhhhhhhhhheeeeeeeeeeeeeeeeeeeeelllllllllllllllllp
alexdok [17]

Answer:

55

Step-by-step explanation:10 percent of 50 is 5 +50 equals 55

8 0
2 years ago
Read 2 more answers
A tray can hold 9 milk bottles. There are 9063 milk bottles in a dairy farm. After packing the milk bottles in the trays,10 tray
Lemur [1.5K]

Answer:

1017

Step-by-step explanation:

9063/9=1007

1007+10=1017

3 0
3 years ago
Pls help me. I'm lost<br>​
Ket [755]

Answer:

f(-2) = 13

g(4)  = -9

Explanation:

Whenever a question is asking you to find something like, in this example, f(-2) or g(4), you have to substitute whatever number is in the parentheses for every x in the function with that letter.

Let's try to find f(-2). We have to substitute -2 for every x in the function f and simplify:

f(-2) = -2 (-2)^{3} -3\\f(-2)  = -2(-8)-3\\f(-2) = 16 - 3 \\f(-2)  = 13

Therefore, f(-2) = 13.

Next, let's try to find g(4). We have to substitute 4 for every x in the function g and simplify:

g (4) = -2(4) - 1\\g(4) = -8-1\\g(4) = -9

Therefore, g (4) = -9.

4 0
2 years ago
Other questions:
  • Definition: The state of being steady or constant regarding your finances is having
    13·1 answer
  • A group of randomly selected Clyde Marketing employees were asked what their most common form of transportation is. The bar grap
    15·2 answers
  • Solve this equation: 4y + 228 = 352.<br> a. y = – 31<br> b. y = 145<br> c. y = 31<br> d. y = 3
    14·2 answers
  • There are 80 tens.write how many hundreds.write the number
    7·2 answers
  • What is the measurement of angle y?
    10·1 answer
  • If 1⁄50 of an amount is 12, what is 1⁄20?
    8·1 answer
  • Help with the this question pleaseeee
    13·2 answers
  • Plz take this serious plz help me!!!
    15·1 answer
  • Solve the following equation for x to find the total number of people who became members of a social networking site for a certa
    5·1 answer
  • To find the quotient of 3 divided by one-sixtto find the quotient three-fourths divided by one-eighth,h, multiply 3 by
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!