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
solong [7]
3 years ago
11

Which of the expressions (on the photo document I inserted) together represent all solutions to the following equation?

Mathematics
1 answer:
Ipatiy [6.2K]3 years ago
7 0

Answer:

x =15 + 30n

Step-by-step explanation:

8cos(12x)+4=-4

Subtract 4 from each side

8cos(12x)+4-4=-4-4

8cos(12x)=-8

Divide by 8

8/8cos(12x)=-8/8

cos(12x) = -1

Take the arccos on each side

arccos(cos(12x)) = arccos(-1)

12x = 180 degrees  

But we can go around in a circle of 360 and get the same result

12 x = 180+360n  where n is an integer

Divide each side by 12

x = 180/12 +360n/12

x =15 + 30n

You might be interested in
If y = -10 -x, find y when x = -2​
arlik [135]

Answer:

y = -8

Step-by-step explanation:

y = -10 - x

y = -10 - (-2)

y = -10 + 2

y = -8

8 0
3 years ago
Read 2 more answers
Synthetic Division <br> -2 | 1 2 -3 1
Tom [10]

Answer:

7

Step-by-step explanation:

I am assuming that the division problem looks like this:

-2|  1   2   -3   1

Going off that assumption, we will work this problem.  The first thing you always do in the execution of synthetic division is to bring down the first number.  Then multiply that number by the one "outside", which is -2, then put that number up under the next number in the line:

-2|  1   2   -3   1

        -2

    1

Now add the 2 and -2 and bring that down as a 0 and multiply the -2 times the 0:

-2|   1   2   -3   1

         -2    0

     1    0

Now add -3 and 0 to get -3 and multiply that -3 times the -2 and put the product up under the next numbe in line;

-2|   1   2   -3   1

          -2   0  6

     1     0   -3

Now add the 1 and the 6 to get the remainder:

7

Read more on Brainly.com - brainly.com/question/12992907#readmore

6 0
3 years ago
HELP ASAP IT'S AN EMERGENCY​
Lelu [443]

Answer:

AAS

Step-by-step explanation:

Two angles are equivalent and they share a side

4 0
3 years ago
your class sponsors a benefit concert and the tickets at $8 each.Jordan sells 12 tickets,Andy 16,Morgan 17,and Pat 13.Compute th
Irina18 [472]
Alright, so we have tickets for 8 dollars. The number of tickets can represent x, and the money totaled is 8x. x=16+17+13=46, so we can substitute that in to get 8*46 for the total revenue=368 dollars
8 0
3 years ago
Solve the exponent equation for x 7(4x-6)= 1/49
tatiyna
X=1. Chose C. Hoped that will help
4 0
3 years ago
Other questions:
  • A game room has a floor that is 225 feet by 30 feet. A scale drawing of the floor on grid paper uses a scale of 2 units:5 feet.
    5·1 answer
  • Evaluate the fallowing expression 6^-1
    15·1 answer
  • The sum of three consecutive numbers is 72. What is the smallest of these numbers?
    14·2 answers
  • The weight of a stack of standard 8.5x11 copier paper vs number of sheets of paper. Is it proportional
    5·2 answers
  • A triangle can be formed with side lengths 4in, 5in, and 8 in. True or false
    15·1 answer
  • Can someone please help me
    8·1 answer
  • Find the slope of the line passing through the points (3, 4) and (8,-3).
    9·1 answer
  • The cookie recipe called for oatmeal and raisins in the ratio of 3 to 1. If 4 cups of oatmeal were called for, how many cups of
    14·2 answers
  • A zip line starts on a platform that is 40 meters above the ground. The anchor for the zip line is 198 horizontal meters from th
    13·1 answer
  • I need help!!! Solve the equation 7= -10s -3
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!