Find angle.

ABCD is a square of side 10.    CE=6 <CEA=154   Find <EAB. Round your answer to 1 decimal place.  Hint: find AC first.   Photo of the... more

08/07/16

Question is written below in description section. I need help on this Chemisty question to get points on my extra credit assignment

An unknown hydrocarbon (made up only of hydrogen and carbon) is fully combusted. The products are cooled to release 56.35 grams of water. The remaining pure gas is taken to STP and occupies 40.0 L.... more

08/06/16

how to factor a^3b-ab^3+a^2+b^2+1

 how to factor a^3b-ab^3+a^2+b^2+1?

08/03/16

Find the equation of an ellipse.

Find the equation of an ellipse satisfying the given conditions. Foci: (-2,0) and (2,0); length of major axis: 10

08/01/16

Using y=ux to solve 1st order diff equation

Prove y=ux reduces y'=f(y/x) into separable equations in u and x hence solve

What is the bearing of A from C and what is the distance from B to C

A girl starts from a point A and walks 285m to B on a bearing of 078 degrees.  She then walks due south to a point C which is 307m from A. What is the bearing of A from C and what is the distance... more

geometric distribution

A newspaper find that the mean number of typographical error's per page is six find the probability that at most five topographical errors are found on page

Heat Capacity

A cylinder contains 250 g of Helium at 200 K. The external pressure is constant at 1 atm. The system experiences an evolution of heat and the temperature change is 55 K. Calculate q. Express your... more

Which of the following compounds when placed in water would produce an electrically conductive solution?

-FeSO4 -ZnBr2 -Mn(OH)2 -CsBr -CCl4   Please select all that are true! 

integral of (x-2)^-3/2

integral of quantity x-2 raised to three halves     need help asap      thanks

Calculate the value of the rate constant. PLEASE HELP!

The rate law for the reaction NH2 (g) + NO (g) → N2 (g) + H2O (g) was determined to be as follows: Rate = k[NH2][NO]. In an experiment at 1200K, where the initial concentration of NH2 was 1.00 ×... more

A nonnegative integer-valued random variable X has a CDF of the form F(x)=1-(1/5)^x for x=1,2,.....and zero otherwise. Find P(X is odd)?

A nonnegative integer-valued random variable X has a CDF of the form F(x)=1-(1/5)^xfor x=1,2,.....and zero otherwise.Find P(X is odd)? could you please help me with that?

The coordinate p = (a,0 is at an equal distance from origo as the coordinate Q = (3, 4). Solve algebraically possible values for a.

That is my question, i think i need to use pythagorean theorem? The distance formula? This is a question on linear functions.

06/19/16

What is the area of an equilateral triangle who's inscribed circle has a radius equal to 2?

What is the area of an equilateral triangle who's inscribed circle has a radius equal to 2?

I'm struggling for one harmonic oscillation question.

I'm struggling for one harmonic oscillation question. Continued questions are related to this question. So if I know this, I'll carry on my study. Pleas help me one time. The question is: A force... more

Definite integral question

Calculate the integral of:  cos [2x] π. cos πx dx From 0 to 1.

05/25/16

y''-3y'+2y= x+1 y(0)=1 y'(0)=1 heelp

y''-3y'+2y= x+1 y(0)=1 y'(0)=1 heelp find the solution

05/19/16

Spring with two masses

Two masses of mass m are connected by a spring with spring constant k (diagram below).a) What is the resonant frequency of the system in terms of m and k?b) If the masses are each 1AMU (atomic mass... more

What is the standard form equation of a parabola with a vertex of (5, 6) and a directrix at y= 23/4?

What is the standard form equation of a parabola with a vertex of (5, 6) and a directrix at y= 23/4?   standard form equation of a parabola

05/15/16

at what rate is the volume of the sphere changing at the instant when the surface area is increasing at the rate 4 square centimeters per minute

at what rate is the volume of the sphere changing at the instant when the surface area is increasing at the rate 4 square centimeters per minute and the radius is increasing at the rate of 0.1... more

05/14/16

The maximum value of |z|, when z satisfy the condition |z + 3/z|=3 ?

This question is from complex numbers.

What is the molecular formula of SxFy ?

General formula : SxFy One of the compound is 25.23%S. If you place 0.0955 of the compound in a 89 mL flask at 45 degree celcius, the pressure of the gas is 83.8mmHg. What is the molecular formula ?

Solve the differential equation y= 2xv1-y2

a. Solve the differential equation y= 2x√1-y2b. Explain why the initial value problem y =2x√1-y2 with y(0) = 3 does not have a solution.

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