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
padilas [110]
3 years ago
9

Solve the equation 2sin(x) + 1= 0

Mathematics
1 answer:
noname [10]3 years ago
8 0

Answer:

Step-by-step explanation:

+ First, we write 2sin(x) = -1 (add -1 for both sides)

Then sin(x) = -1/2 (divide both sides by 2).

+ And we know that -1/2 = sin( -pi/6)

So sin(x) = sin (-pi/6)

that implicite:

x=-\frac{\pi }{6} + 2k\pi\\x= \pi - (-\frac{\pi}{6} )+ 2k\pi= \frac{7\pi}{6} +2k\pi

Hope it useful for you.

You might be interested in
The expression (3 + 6i) + (5 - 10i) simplified is
HACTEHA [7]

Answer:

The answer is 8 - 4i

you collect the like terms

5 0
3 years ago
Read 2 more answers
Melissa makes 8 dollars for each hour of work. Write an equation to represent her total pay p after working h hours
Alenkasestr [34]

Answer:

8 x h= p

Step-by-step explanation:

You see 8. That is the amount she is getting paid for each hour.

p is how much is paid totally after working a certain amount of hours

h represents how many hours she works.

8 dollars times the amount of  hours she works(h) would equal p, the total amount she is paid

I really hope this helped~~

3 0
3 years ago
Nikhil drew a picture of an open greeting card on his paper. What is the total area of the drawing of the open greeting card?
Schach [20]

Answer:

35 in2

Step-by-step explanation:

6 0
3 years ago
Sammy drew a rectangle that was w inches wide. The expression 2(2w) + 2(w) represents the perimeter of the rectangle that Sammy
Oksanka [162]
We know that perimiter is
p=2legnth+2width
the equation they gave us is
p=2(2w)+2w
so we know that 2(2w)=2legnth so 2w=legnth
so p=2(2w)+2w
p=4w+2w
p=6w

A. we were not given specific legnths so this is false
B.the perimiter is 6 times the legnth p=6w so this is the answer
C. we were not given specific legnths so this is false
D. this is false because perimeter is 6 times the width

the answer is B
3 0
3 years ago
Read 2 more answers
5) where 2 coins are toased find the probability of getting:
AleksAgata [21]

Step-by-step explanation:

Let S be the sample space

S={HH, HT, TH, TT}

n(S)= 4

A: both the coins with some place

B: both the coins with different place

C:at least one tail

D:at the most one head

1) A={TT,HH}

n(A)=2

P(G)= n(A)/n(S)

= 2/4

= 1/2

2) B ={HT, TH}

n(B) = 2

P(B) = n(B)/n(S)

= 2/4

= 1/2

3) C= {HT, TH, TT}

n(C)=3

P(C) = n(C)/n(S)

= 3/4

4). D={HT, TH}

n(D) = 2

P(D) = n(D)/n(S)

= 2/4

=1/2

8 0
3 years ago
Other questions:
  • The president of a small manufacturing firm is concerned about the continual increase in manufacturing costs over the past sever
    14·1 answer
  • convert the mixed numbers to improper fractions. this will get you one step closer to finding the unit rate
    13·1 answer
  • Help quickkkkkk- I’m terrible at dis stuff
    15·1 answer
  • If vector A⃗ has components Ax and Ay and makes an angle θ with the +x axis, then...
    10·1 answer
  • (1)/(4)(x+y)-(3)/(6)y+(2)/(9)x-8x+4y
    10·1 answer
  • Find the equation of a line that has a slope of -3/2 and passes through the point (2,1)
    15·2 answers
  • Can someone pls help
    10·1 answer
  • Consider the equation y=-2x+5. Describe everything you know about this graph compared to the parent linear function y=x.​
    10·1 answer
  • Lin has a pet German Shepherd that weighs 38 when measured in one unit and 84 when measured in a different unit. which measureme
    5·1 answer
  • Pip, David and Bridget share £60 in a ratio 1:2:2. How much money does each person get?
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!