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How do I solve this? in the interval [0,2pi]

sin(3x)= - (sqrt 3) / 2

in the interval [0,π).

In a solution of ZnI2(aq), is Zinc reduced at the cathode? Also, what are the oxidation and reduction equations for Zn and I2?

The circle in the diagram below has radius one. The angle θ is 6/14π radians.Determine the area between the two triangles which is shown in blue in the figure below. Your answer should be an exact expression and should not be a decimal number.

Picture: http://www.webassign.net/waplots/4/b/336b258a95f84...

Can anyone help me understand this? Thanks

A polygon with 5 equal sides has a circle of radius one inscribed within it. The circle has a polygon with 5 equal sides inscribed within it. Determine the area between the two polygons

Can anyone explain this please?

A mass is attached to a spring on a horizontal bench, and it oscillates. The spring has a spring constant, k Nm, and the mass has mass m kg. The cost to purchase a spring is 8k$, and the cost to purchase a mass is 6m$. The position of the mass is given by:

x(t) = sin(sqrt[k/m]t +b)

1. What is the expression to calculate the total cost of the configuration in terms of k and m ? (Only consider the costs associated with purchasing the mass and the spring.)

2. The completed configuration should cost a total of 36 dollars and the oscillations should have a period of

1/19 seconds. What are the values of k and m that will meet these design objectives?

I have no clue how to do this, can anyone please help show me how?

Determine the set of values of

x where the function

y = sin(x)

is increasing where −2π < x < 2π. Do not include the endpoints of the intervals, and all intervals should be open intervals on all endpoints.

Enter your answer using interval notation.

What is this even asking for and how do you solve it? Im stuck, thanks

The picture shows a sector with angle 0.6 radians, and the sector's arc length is s. Express the area of the sector as a function of the arclength, s.

Can someone please explain this? I can never figure these problems out, thanks

Find the values for all six trig functions. Im confused because the picture given is just a triangle with the opposite side labeled as B and the hypotenuse labeled as C with no label on the Adjacent side. I tried plugging in A and it didnt work.

If sin theta= b/c and csc= c/b, what are the rest?

The problem is: The population density of voles in a park is approximated by the function:

P= (1400e^(8t)) / 1 + 7e^(8t)

where t is the time in days. Determine the long term population density. (What number does the population density approach after a very long time?)

Hint: divide the top and bottom of the fraction by the term that grows the fastest in time.

I have no idea how to do this, can anyone please help explain it?

I cant seem to get the right answer, as it has to be in symbolic form. The problem is:

Alice makes an initial investment on July 1, 2000 into a bank account on that compounds continuously at an unknown rate.

On July 1, 2005, the balance was $230.00. On July 1, 2014, the balance was $440.00. Answer the following.

A) What is the interest rate?

B)Determine the initial investment to the nearest cent

Any explanation would be great, thanks!

Here is my problem: A bacteria population begins with 540 bacteria present and grows exponentially. Each bacterium divides into 2 organisms every 55 minutes.

(a) Find the size of the population after 2 hours. Enter an exact answer or round to the nearest whole number.

I used n=540e^2(2.1818) and got 42411 bacteria, but that was not correct. How do I solve this?

A small metal sphere has a mass of .16g and a charge of -23nC. It is 10cm directly above an identical sphere with the same charge. The lower sphere is fixed and can't move.

1. What is the magnitude of the force between the spheres?

2. If the upper sphere is released, it will begin to fall. What is the magnitude of its initial acceleration?

Thanks a ton!

I'm a 17 year old boy and I have wide hips. I hate them. What do I do to get rid of it? (Pics in my last question)

Here's how the chorus goes:

6 syllable line,

6 syllable line,

11 syllable line,

6 syllable line,

6 syllable line,

11 syllable line.

What's a good chord progression for this? Or how can I find good chords to play. I'm new to songwriting

Slow songs and fast songs please. Thank you!

I'm a 16 year old boy and a red mark appeared on my cheek the other day. Its kind of bumpy and is about the diameter of a pea. Its very noticeable and I want to get rid of it. I don't think its acne unless its cystic but how do I get rid of it?

I need a quote that shows the beliefs of Marxism Leninism from the movie