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
hram777 [196]
3 years ago
11

How to prove it's an identity sin y + sin 3y + sin 5y + sin 7y = 4 cos y cos 2y sin 4y

Mathematics
1 answer:
Gennadij [26K]3 years ago
7 0

Answer:

0.9777102203

Step-by-step explanation:

the identity is 0.9777102203

You might be interested in
Sovle the system of equations using the substitution method (pls show work if you can haha)
lions [1.4K]
Just get photo math and take a pic and it’ll show you how to do it like in elimination substitution and graphing
5 0
4 years ago
There are 28.35 g in an ounce and 2.21 lb in a kilogram. Juanita converts 3 kilograms to ounces. Is her conversion correct? Expl
GarryVolchara [31]

Answer:

3 kg = 105.82 ounces

Step-by-step explanation:

We have,

1 ounce = 28.35 g

and

1 kg = 2.21 lb

If we want to the value of 3 kg to ounces. The direct relation between kilogram to ounce is as follows :

1 kg = 35.274 ounces

It means,

3 kg = 105.82 ounces

So, the value of 3 kg is equal to 105.82 ounces.

4 0
3 years ago
Read 2 more answers
Question Completion Status:
jeka94

Answer:

y=3x-3

Step-by-step explanation:

The equation of the line with the slope m and passing through the point (x_0,y_0) is

y-y_0=m(x-x_0)

In your case,

m=3\\ \\x_0=3\\ \\y_0=6

Hence, the equation of the line is

y-6=3(x-3)\\ \\y-6=3x-9\\ \\y=3x-9+6\\ \\y=3x-3

3 0
3 years ago
THE DIFFERENCE OF TWO NUMBERS IS 4 AND THEIR SUM IS -7. WHAT IS THEIR PRODUCT. Who ever solved this correct will mark brainlist.
babunello [35]

Answer:

33/4

Step-by-step explanation:

Let the first number be x, and the second number be y.

x - y = 4

x + y = -7

Solve for x in the first equation.

x - y = 4

x = 4 + y

Put x as (4 + y) in the second equation and solve for y.

4 + y + y = -7

4 + 2y = -7

2y = -7 - 4

2y = -11

y = -11/2

Put y as -11/2 in the first equation and solve for x.

x - y = 4

x - (-11/2) = 4

x + 11/2 = 4

x = 4 - 11/2

x = -3/2

Their product is:

-11/2 × -3/2

33/4

6 0
3 years ago
Read 2 more answers
Which of the following represents the diameter of the circle below?
Svetach [21]

Answer:

xy represents the diameter

7 0
2 years ago
Other questions:
  • Gavin's anemometer measures the wind speed at 44.14 kilometers per hour. 4 times faster than the wind speed 5 hours ago.
    6·2 answers
  • Explain how science can help people save resources such as coal
    9·2 answers
  • What is the answer? pls help
    10·1 answer
  • Is 0.248 greater than 0.29???
    6·2 answers
  • How many ten thousands equal 8 thousands
    15·2 answers
  • Can you help me pls
    5·1 answer
  • PLEASE IT DUE IN 1 HR :(((((( During the month of February, Fabulous Feet Shoe Mart sold 30 pairs of red loafers. After an ad ca
    11·2 answers
  • Please help :)<br> Given ΔCAT≅ΔDOG, which statement is true?
    13·2 answers
  • I need help asap plz <br> For the first too am I correct and i need help for the last one plz
    6·1 answer
  • Student bought n books with 20 dollars and 10-n books with 30 dollars each if p is the total price of the books then which one o
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!