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
hjlf
3 years ago
6

Please help me with this question please

Mathematics
1 answer:
lora16 [44]3 years ago
7 0

Answer:

○ sin 15° = sin 30°⁄2 = ±√[1 - cos 30°\2]

Step-by-step explanation:

According to the Sine Half-Angle Identity, this is the formula:

sin x = sin ˣ⁄2 = ±√[1 - cos x\2]

Notice the <em>-</em><em>cos</em><em> </em><em>x</em><em>\</em><em>2</em><em> </em>inside the radical. The second option nearly resembles this option. It has a positive symbol inside. Do not let this confuse you. The Cosine Half-Angle Identity is the formula that has a positive in the radical:

cos x = cos ˣ⁄2 = ±√[1 + cos 30°\2]

I am joyous to assist you anytime.

You might be interested in
27&lt; 3+5x+4<br><br> “With a step-by-step explanation be specific”
Nataly [62]

Answer:

27 < 3 + 5x + 4 \\ 27 < 7 + 5x \\ 27 - 7 < 5x \\ 20 < 5x \\5x > 20 \\ x >  \frac{20}{5}  \\  \boxed{x > 4}

<h3><u>x>4</u> is the right answer.</h3>
4 0
3 years ago
Read 2 more answers
What is the ratio of 36 to 20 in simplest form?
ollegr [7]
36:20            18:10
--------    =     --------      = 9:5
    2                  2

6 0
4 years ago
Read 2 more answers
Please help me! Im so confused. If you could explain, too that would be great!!! &lt;3
Zielflug [23.3K]

Answer:

the base length is 8 units

Step-by-step explanation:

You can use pythagorean theorem to solve this

8 0
2 years ago
Log6 8 + log6 27 as single logarithm
Vsevolod [243]
Log[8/(36*3)] Log[2/27] Hope I really help you !
6 0
3 years ago
Taylor and Nora go to the movie theater and purchase refreshments for their friends. Taylor spends a total of $69.00 on 6 drinks
fgiga [73]

Answer:

The system if equation that can be used to derive this are

6x + 4y = 69 AND

12x + y = 96

The price of a drink is $7.5

Step-by-step explanation:

The question here says that Taylor and Nora went to the movie theater and purchase refreshments for their friends. Taylor spends a total of $69.00 on 6 drinks and 4 bags of popcorn Nora spends a total of $96.00 on 12 drinks and bag of popcorn.And we are now told to write a system of equations that can be used to find the price of one drink and the price of one bag of popcorn. Using these equations,we should determine and state the price of a drink, to the nearest cent .

Now, Let's assume that the price of a drink is "X" and that of a bag of popcorn to be Y

The first person made a purchase which led to the equation

6x + 4y = 69______ equation 1

And the second person also made a purchase that lead to the equation

12x + y = 96_____ equation 2

We make y the subject of the formula in equation 2 and apply it in 1

Y = 96 - 12x

Now apply the above in equation 1

6x + 4y = 69

6x + 4(96 - 12x)= 69

6x + 384 - 48x = 69

42x = 384 - 69

X = 315/42

X = 7.5

Substitute x= 7.5 in equation 2

12x + y = 96

12(7.5) + y = 96

90 + y = 96

Y = 6

Therefore, the price of a drink is $7.5

4 0
3 years ago
Read 2 more answers
Other questions:
  • Y is inversely proportional to x.
    11·1 answer
  • The ratio two numbers is 3 and 5 their sum is 135find two number
    11·1 answer
  • Micki bought 4 gallons of apple cider. Micki says she bought 1 quart of apple cider . Explain mickis error.
    11·2 answers
  • H=45t-4.9t^2 what's the max height?
    12·1 answer
  • A cake calls for three-fourths of
    14·1 answer
  • 2. I pay $4.00 for my train fare everyday. This week, my train
    12·2 answers
  • Please help :)
    8·1 answer
  • What is larger 110 feet per second or 60 miles per hour please Help this is on my quiz!!!
    8·1 answer
  • Draw a model of 1/3 ÷ 2 show a pic of the math model you get brainliest to..
    13·1 answer
  • Solve for z. <br> X=3y+3z
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!