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
Which of the following describes the function −x3 + 5?
algol13

Answer:

The correct choice is C

Step-by-step explanation:

The given function is:

-x^3+5

The degree of this function is odd so the function will rise at one end and fall on the other end.

Since the coefficient of the leading term is negative, the graph of the function will rise at the left and fall on the right.

The correct answer is option C.

4 0
2 years ago
What are the values of the trigonometric ratios for this triangle?
Norma-Jean [14]
We know that
in the right triangle

<span>sinθ=opposite side/hypotenuse
</span><span>cosθ=adjacent side/hypotenuse
</span><span>tanθ=opposite side/adjacent side

in this problem
opposite side angle </span>θ=8
adjacent side angle <span>θ=15
hypotenuse=17
so

</span>sinθ=8/17
cosθ=15/17
tanθ=8/15
4 0
2 years ago
Can someone please help me with this ASAP!! (will mark as brainliest if correct)
sattari [20]

Answer:

P = 6x-2

x = 14

Step-by-step explanation:

To find the perimeter, we add the sides

P = 4x-8 + 3-2x + 5x+3

Combine like terms

P = 4x-3x+5x  -8+3+3

  = 6x -2

Now we know the perimeter

82 = 6x-2

Add 2 to each side

82+2 = 6x-2+2

84 = 6x

Divide each side by 6

84/6 = 6x/6

14=x

6 0
3 years ago
Read 2 more answers
A deposit earns $102 after 36 months at a simple interest rate of 5%
Vladimir [108]

Answer:

You need to give us the possible answers first.

Step-by-step explanation:

6 0
3 years ago
Suppose the scores of seven members of a women’s golf team are 68, 62, 60, 64, 70, 66, and 72. Find the mean, median, and midran
grin007 [14]
Mean - add up all of the scores, and divide it by the number of members:

68 + 62 + 60 + 64 + 70 + 66 + 72 = 462
462 / 7 = 66

ANSWER: The mean is 66

Median - write out all the numbers in order, and select the middle value:

60, 62, 64, 66, 68, 70, 72

ANSWER: As you can see, 66 is the middle value.

Midrange - find the mean (average) of the smallest and largest number:

Largest number: 72
Smallest number: 60

Midrange:   72 + 60 = 132
                     132 / 2 = 66

ANSWER: So the midrange is 66

4 0
2 years ago
Other questions:
  • Help me solve these equations
    9·2 answers
  • What is the value of n in this equation?(2.4 x 10^3) x (3 x 10^n) = 7.2 x 10^9​
    6·2 answers
  • consider the radical equation square root n+4=n-2. Which statement is true about the solutions n=5 and n=0
    6·1 answer
  • Please answer the attached question by selecting of the the given answers.
    5·1 answer
  • Two angle measures in a triangle are 47 degrees and 43 degrees. what type of triangle is it?
    5·1 answer
  • A park began with a population of 8 rabbits. Every year, the rabbit population triples. How long will it take for the population
    6·1 answer
  • What is the value of the discriminant for the quadratic equation 0 = x + 2 + x^2?
    9·1 answer
  • A hiker is making his way up a mountain. After resting for a night, he travels with a group toward the top of the mountain
    7·1 answer
  • Select the correct answer.
    11·1 answer
  • The map shows the location J of Jose's house, the location of Tyrell's house, and the
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!