# Posts by mema

Total # Posts: 65

**math**

n (level 0) = 1 n (level 1) = 4 n (level 2) = 13 n (level 3) = 27 what is the n level ? it means n of any level .. I need an equation, pls ?

*November 12, 2012*

**Python - Tkinter**

how can I make my program to freeze in certain conditions .. unless I click "r" it will continue to work ?

*October 27, 2012*

**math**

find complex zeros of the polynomial function. put f in factored form. f(x)=x^3-6x^2+21x-26

*August 24, 2012*

**chemistry**

Serine exists in its zwitterion form at a pH of 5.7. Draw the structural formula for the same. Explain the manner in which the structural formula of polar and non-polar amino acids would vary.

*July 28, 2011*

**Chemistry**

Serine exists in its zwitterion form at a pH of 5.7. Draw the structural formula for the same. Explain the manner in which the structural formula of polar and non-polar amino acids would vary

*July 27, 2011*

**Chemistry**

A girl is celebrating her seventh birthday. Each guest is served one large slice of chocolate cake, a hamburger, French fries, and some oranges. Identify the food groups mentioned above. If one slice of chocolate cake contains 35g of carbohydrate, 15g of fat and 5g of protein...

*July 23, 2011*

**Chemistry**

What kind of molecule is NADH dehydrogenase? Where and how does it typically function?

*July 19, 2011*

**Chemistry**

The Managing Director of a well-known company on Wall Street thrives on a diet of fruit jam, bread, pasta, and coffee. She exercises intermittently. One day she decides to go to her primary healthcare provider for a routine checkup. The healthcare provider recommends that she ...

*July 17, 2011*

**chemistry**

Identify a haloalkane and describe the manner in which it functions as an anesthetic.

*July 16, 2011*

**chemistry**

In beta decay, why does the atomic number increase by 1?

*July 13, 2011*

**chemistry**

A 55-year-old woman visits a popular eatery for lunch. She orders a cheese and bacon pizza with extra cheese and has about 3 large glasses of cola (ph value 3). On the way back home, she experiences heartburn and abdominal pain, and has difficulty breathing. She drinks a lot ...

*June 25, 2011*

**chemistry**

State three examples each of acids, bases, and salts commonly used in therapeutic processes. From the examples you state, select one acid, one base, and one salt and describe how and where they are used in therapeutic processes. Please note that your examples should not ...

*June 25, 2011*

**chemistry**

Discuss in detail the healthcare applications of chemical reactions. Which chemical reactions would you consider to be of importance to healthcare professionals? Why? In which situations are these chemical reactions useful to healthcare professionals?

*June 25, 2011*

**chemistry**

Identify the two important classes of catalysts. Analyze the chemical reactions that take place when a biological catalyst combines with a reactant (substrate) to form an unstable intermediate

*June 25, 2011*

**chemistry**

consider a neutral atom with 30 protons and 34 neutrons. What is the mass number for the atom?

*June 21, 2011*

**chemistry**

The body consist of elements, 65% oxygen is in the blood and 18% carbon. Anything in the body tends to be a compound. Is blood always 65 % oxygen and 18% carbon?

*June 21, 2011*

**chemistry**

consider a neutral atom with 30 protons and 34 neutrons. What is the mass number for the atom?

*June 20, 2011*

**chemistry**

what is the element with the electron arrangement 2 8 7

*June 20, 2011*

**chemistry**

What is the mass number of an atom of potassium that has 20 neutrons?

*June 20, 2011*

**chemistry**

The carbon tetrachloride molecule,CCi4 is what kind of molecule and bond?

*June 20, 2011*

**chemistry**

What is the mass difference between sodium ion vs. sodium atom?

*June 20, 2011*

**chemistry**

Elements in group 2A(2) 0f the periodic table from ions with a change of, How would I find this out. 1+ 1- 2+ 3+ 0

*June 19, 2011*

**Chemistry**

A freshman is currently enjoying the Arts Studio program she is pursuing at a well-known university. In her free time, she likes to skate, take salsa dance lessons, and cook. She particularly enjoys pickling and decides to pickle olives over a leisurely weekend. According to ...

*June 19, 2011*

**Chemistry**

A freshman is currently enjoying the Arts Studio program she is pursuing at a well-known university. In her free time, she likes to skate, take salsa dance lessons, and cook. She particularly enjoys pickling and decides to pickle olives over a leisurely weekend. According to ...

*June 16, 2011*

**Chemistry**

thanks

*June 16, 2011*

**Chemistry**

Analyze the properties of a sodium atom and a sodium ion. What are the differences in mass, stability, and reactivity that are caused due to the differences between the sodium atom and sodium ion?

*June 16, 2011*

**chemistry**

thank you

*June 15, 2011*

**chemistry**

A robust first grader goes for swimming lessons three times a week, and he enjoys it thoroughly. During the first week of December, he develops an upper respiratory infection, starts coughing continuously, and has a high fever of 39°C. His condition remains the same even ...

*June 15, 2011*

**chemistry**

Every measurement has a measurement uncertainty. Discuss how precise and accurate measurement can be achieved in spite of the inherent measurement uncertainty. You could use either of the two options given below. • Take a ruler and measure the height of the textbook three...

*June 15, 2011*

**Chemistry**

convert 39C fever to fahrenheit

*June 15, 2011*

**algebra**

Multiply -5x+4 by 4x^2+x

*June 9, 2011*

**algebra**

Use polynominal long division to divide -4x^3+24x^2-24x+4 by x^2-5x+1

*June 9, 2011*

**algebra**

Joe has a collection of nickles and dimes that is worth $7.65.If the number of dimes was doubled and the number of nickles was increased by 35, the value of the coins would be $14.30. How many nickles and dimes does he have?

*June 9, 2011*

**algebra**

Given the quadratic function f(x)=9x^2-36x+36 find a value of x such that f(x)=9

*June 9, 2011*

**algebra**

Subtract (4x+17xy-9y)-(5x-8xy)

*June 9, 2011*

**algebra**

express in terms of i 3/-104

*June 9, 2011*

**algebra**

write with postive exponents. Assume that even roots are nonnegative quantities and the demoninators are non zero (2x/y^2)-^4

*June 9, 2011*

**algebra**

Solve using the elinination method 2x+2y=20 2x-2y=4

*June 9, 2011*

**algebra**

solve using the subsitution method 4x+4y=36 4x+4y=12 If the system has no solution or an infinite number of solutions, please help me understand it.

*June 9, 2011*

**algebra**

Use the discriminant to determine the following equations have that are two different rational solutions:two different irrational solutions or exactly one rational solution or two different imaginary solution. x^2=5x+6

*June 9, 2011*

**algebra**

If a stone is thossed from the top of a 230 meter building, the height of the ston as a function of time is given by h(t)=9.8t^2-10t+230 t is seconds and h in meters. How many seconds will the stone hit the ground?Round to the nearest hundredreths place include units.

*June 9, 2011*

**algebra**

solving the equation (x+4)(x-4)=9 Eric stated that the solution would be x+4=9>x=5 or (x-4)=9=>x=13 However one of these solution fails to work when subsituted back to the original equation. Why?olve and explain the reasoning. Can someone please help me?

*June 9, 2011*

**Algebra**

Wk 6 Sec 12.7 #24 World population growth In 2008 the world population was 6.7 billion and the exponential growth rate was 1.14% per year. A.Find the exponential growth function B.Predict the world’s population in 2014 C.When will the world’s population be 8.0 ...

*June 8, 2011*

**algebra**

express as an equivalant expression that is a single logarithmic and simplfy if poissible loga(2x+10)-loga(x^2-25)

*June 3, 2011*

**algebra**

rewrite as an equivalent loganthmic e-^2=0.1353

*June 3, 2011*

**algebra**

find the quotient 9a^2-b^2/3a-b

*June 1, 2011*

**algebra**

find the quotient y^4+3y-1/y^2-3

*June 1, 2011*

**algebra**

the area of a rectangular swimming pool is given by 4x^2+9x+2ft^2.One side length of the pool by 4x+1feet. What is an algebraic expression for the other side lengeth of the pool and simplify and include correct units as a part oy your answer. please help

*June 1, 2011*

**algebra**

find the quotient 6x^3-5x^2-13x+13/2x+3

*June 1, 2011*

**algebra**

find the vertex and the axis of symmetry andf(x)=x^2-10x+21` graph the function

*May 26, 2011*

**algebra**

determine what type of number the solutions are and how many solutions exist 5x^2=48x

*May 26, 2011*

**algebra**

Replace each equation with constants to complete the square and form a true equation x^2+2x+--=(x+---)^2

*May 26, 2011*

**algebra**

find the product (1/7x^2-2/5)1/2x+1/2 Can someone show me how to find the product?

*May 26, 2011*

**algebra**

Add the following polynimal (1/10x^2-1/2x-3/10)+(1/2x^2+1/4x-1/5 Show me how to do this please?

*May 26, 2011*

**algebra**

Consider that the age x of a unicorn in human equivlant years can be given by the formula f(x)=0.097326x^3-1.3367^2+12.46+3.914. When a unicorn is 2.5 years old, what is its age in human equilvant years. 12years old

*May 26, 2011*

**algebra**

Bob barber shop estimates their gross revenue for the second quarter to be given by the polynimal 3x^3+6x^2+3x+3. The shop estimates their cost for the quarter to be given by 9x^2-6x+5. Find and simplify the polyminal that will represent their profit. Will someone show me how ...

*May 26, 2011*

**algebra**

4x^3-6x^2+7what is the polynomial is it a trinomial can be evaluated at x=.1/3 coeffcient of 6 is it a quadratic

*May 26, 2011*

**algebra**

x-^2-3x+6 7x-0 find and simplisy

*May 23, 2011*

**algebra**

Find the product 7x(-2x^2+x-4)

*May 22, 2011*

**algebra**

Find the difference (-x^2+8x-7)-(9x^2-5x-7)

*May 22, 2011*

**algebra**

add tyhe following (-8x^2-2x+4)+(x^2-9x+7)

*May 22, 2011*

**algebra**

add the following (8.1x^2-5.9x-7.1)+-9.8x^2-8.1x-4.8)

*May 22, 2011*

**algebra**

list the coefficients of the given polynomial 2x^3+4x^2+8x-5

*May 22, 2011*

**algebra**

add the following (-8x^2-2x+4)+(x^2-9x+7)

*May 22, 2011*

**algebra**

state the degree of the given polynomial 3x^4-4x^2+7x-1

*May 22, 2011*

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