Ask a New Question
Search
Questions and answers by
Mary
Questions (2,163)
A microbiologist measures the speed of a swimming bacterium. The bacterium covers a distance of 2.16 microns in 5.0 seconds. The
2 answers
1,463 views
I'm in need of help really bad. I been sitting here( I got a serious butt ache) trying to figure out this answers and I only got
5 answers
1,199 views
I need help on this question. I have 30 questions and this is the only one i'm stuck on.
Why did the Framers of the Constitution
3 answers
489 views
3 5/9 divide 4 4/9
1 answer
311 views
I must show my work for full credit. I need help on this question. I don't need answers, but could you help me figure it out.
Tha
2 answers
1,173 views
I need someone to help me and explain this question. Every time I put thought into it, i just get confused.
Choose a product that
10 answers
1,239 views
I need two examples of someone being a producer
I know producers produce goods and services, but I can't think of any examples.
2 answers
1,086 views
Describe how subjectivity and other factors affect a person's calculation of cost and benefit. Give an example of a cost-benefit
3 answers
4,728 views
The combustion of ethane (C2H6) produces carbon dioxide and steam:
2C2H6+702 yields 4CO2 +6H2O How many moles of CO2 are produced
3 answers
1,965 views
Patient motion may create artifact that looks like an atrial arrhythmia? True or False. True
The ECG tracing represents a 3
1 answer
634 views
Patient motion may create artifact that looks like an atrial arrhythmia? True or False. True
The ECG tracing represents a 3
0 answers
537 views
Solve the equation and write the solution set.
|4x – 8| – 3x = 6x + 2 I need help!!
2 answers
882 views
If someone makes random guesses for each NCAA Basketball Tournament game, what is the probability of picking the winner in each
1 answer
451 views
Find the value of k so that the line containing the points (−5,0) and (k,−2) is parallel to the line
y=(5/9)x−2
1 answer
488 views
From a titration of KHP and NaOH.
Determine the range in NaOH volume to achieve a relative standard deviation of less than 0.2%.
0 answers
476 views
The set S= {AAA,AA,C,D} represents the sizes of batteries a hardware store offers.
The set T= {regular, alkaline, rechargeable}
1 answer
554 views
A bullet is fired vertically upward with initial speed wo, at latitude ö. Neglecting air resistance, by what distance will it
1 answer
1,295 views
Where can I find an example of this assignment? I know what the pluralistic and elitist perspective are but I do not know what
2 answers
520 views
The assignment: Create a matrix between the pluralistic and elitist perspective. When differentiating between the two
1 answer
569 views
Thank you Ms. Sue for the answer. I just wanted to know how you arrived at that $31000, because I have a number of problems like
1 answer
386 views
linear correlation between the number of years in college versus average pay. average pay= 1,000 + 15,000x where x is the number
1 answer
556 views
where can I find health care policy of the United States and develop a timeline. I need some fresh ideas about the policies like
1 answer
437 views
linear correlation between the number of years in college versus average pay. average pay= 1,000 + 15,000x where x is the number
1 answer
572 views
In what way is a lesson that is designed to promote an autonomy supportive environment different from a teacher directed lesson?
2 answers
512 views
write the equations in logarithmic form.
1. 216 =6^3 2. 25 =(1/5)^-2 3. a = b^c
1 answer
887 views
I was wondering what topic to write about with the most information,Write a 1,400- to 1,750-word paper on a current health care
1 answer
637 views
With figure,
img19.imageshack.us/img19/2135/81gd.png prove: tan(x/2) = sin(x)/(1+cos(x)).
0 answers
712 views
What are some things to create in a community that would be good to have?
(I would appreciate it if you gave me a list of
4 answers
471 views
A 1.80 m radius playground merry-go-round has a mass of 120 kg and is rotating with an angular velocity of 0.300 rev/s. What is
0 answers
814 views
A 33.5 kg block m1 is on a horizontal surface, connected to a 6.50 kg block m2 by a massless string. The pulley is massless and
0 answers
513 views
Where can I find some information about this? Most of the class is talking about the costs of health care I would like to do
3 answers
929 views
Calculate the pH at the equivalence point if 25.00 mL of 0.010M barbituric acid (HC4H3N2O3) is titrated with 0.020M NaOH. (Ka
1 answer
542 views
How are finance and accounting related to an operating budget?
where can I find information about this question. Basically I am
1 answer
376 views
You have 120 grams of U-235. How many half lives would it take to make enough helium to fill a 5.60 L balloon at STP?
0 answers
388 views
The instructions are, Write Lewis structures that obey the octet rule for the following species. (Assign atomic charges where
1 answer
768 views
Charged particles such as ions can separate the charges inside of overall electrically neutral atoms, thus making an electric
0 answers
603 views
2) Calculate the Molar Enthalpy of Neutralization (ΔHn) in kJ/mol of the reaction between a monoprotic acid and a monoprotic
1 answer
987 views
Not sure if these are right
1) What is the Molar Enthalpy of Neutralization (ΔHn) in kJ/mol if 5.00 moles of HCl(aq) (acid)
3 answers
708 views
What is the difference between polar and nonpolar molecules?
1 answer
1,925 views
How would I calculate these? I have the answers because there from a previous test.
1) How much heat is required to raise the
1 answer
573 views
How would I calculate this? I have the answer because its from a previous test I just want to know how I would calculate it.
How
1 answer
1,083 views
How would I calculate this?
30.0 mL of pure water at 280. K is mixed with 50.0 mL of pure water at 307 K. What is the final
1 answer
1,919 views
How do I calcuate this?
How much heat is gained (in Joules) by the water (qwater) when a chemical reaction takes place in 100.0
2 answers
575 views
Compelete the following table for an ideal gas.
P= 7.74*10^3 Pa V= 10.3 mL N= ? T= 25°C I'm getting 3.20e-4, but my online
1 answer
608 views
Compelete the following table for an ideal gas.
P= 7.74*10^3 Pa V= 10.3 mL N= ? T= 25°C I'm getting 3.20e-4, but my online
1 answer
514 views
Compelete the following table for an ideal gas.
P= 7.74*10^3 Pa V= 10.3 mL N= ? T= 25°C I'm getting 3.20e-4, but my online
0 answers
466 views
Compelete the following table for an ideal gas.
P= 7.74*10^3 Pa V= 10.3 mL N= ? T= 25°C I'm getting 3.20e-4, but my online
1 answer
621 views
What is the Molar Enthalpy of Neutralization (ΔHn) in kJ/mol if 5.00 moles of HCl(aq) (acid) neutralized 5.00 moles of NaOH(aq)
1 answer
674 views
On a Statement of Revenue and expense I have one year plus the percentage of change and I need to find the projected budget for
0 answers
376 views
What quantity of heat is required to produce 5 mol of oxygen gas by this reaction? HgO(s) → Hg(l) + ½ O2(g), ΔH = +90.7kJ
I
3 answers
1,401 views
Calculate the Calorimeter Constant (Ccal) if 25.00 g of water at 51.50°C was added to 25.00 g of water at 25.00 °C with a
1 answer
443 views
Calculate the Calorimeter Constant (Ccal) if 25.00 g of water at 51.50°C was added to 25.00 g of water at 25.00 °C with a
1 answer
1,270 views
I have to do a revenue and expense statement and balance sheet for 2 years I have find the dollar differences and the percentage
0 answers
394 views
what is the value of "a" if the equation (9+i)x^2+(a-i)x+36-2i=0 has
real roots?
0 answers
309 views
I gave a test that had 50 items on it. I can only enter a grade of 20 total points if all are answered correctly. So, how much
3 answers
315 views
Please replace the incorrect words with correct words in the following sentences using AP Style. There may be more than one
3 answers
661 views
Permutation and combinations (Trig/alg2 class)
In how many ways can all the letters in SEYCHELLES be arranged?
1 answer
410 views
We're supposed to make a simple pendulum with a period of 24 seconds. So i attached a hardware bolt at the end of a string. The
0 answers
515 views
What is the antiderivative of. 3X/x^2?
2 answers
429 views
write a news story in inverted-pyramid style. Begin your story with a summary news lead of no more than 20 words and then write
5 answers
606 views
write a news story in inverted-pyramid style. Begin your story with a summary news lead of no more than 20 words and then write
2 answers
638 views
write a news story in inverted-pyramid style. Begin your story with a summary news lead of no more than 20 words and then write
7 answers
610 views
Pipe A takes twice the time to fill up the pool as pipe B does.The pool can be filled up in 2 h when both pipes are opened How
0 answers
462 views
Oxygen vapor combines with hydrogen gas to produce liquid water. If 50.0 g of oxygen combines with 105 L of Hydrogen gas (at
1 answer
593 views
How many liters of oxygen are required to react completely with 5.9 L c3H8?
1 answer
514 views
Simone de Beauvoir warns against “ethical recipes,” suggesting instead that life and ethics are both inherently ambiguous.
8 answers
495 views
Simone de Beauvoir warns against “ethical recipes,” suggesting instead that life and ethics are both inherently ambiguous.
0 answers
498 views
If something originally contained 32.0 g of Po-210, which has a half-life of 10.5 minutes, and was now 73.5 minutes old, how
1 answer
401 views
Let f(x) be a polynomial such that f(f(x))−x^2 =xf(x). Find f(-100)
2 answers
475 views
1. What is the total sales tax to be paid in 2012 on the purchase of a 2012 passenger vehicle with a selling price of $17,000
1 answer
438 views
A vending machine dispenses coffee into a twelve-ounce cup. The amount of coffee dispensed into the cup is normally distributed
0 answers
1,031 views
A car rental agency advertised renting s car for %26.95 per day and @0.34 per mile. If David rents this car for 4 days how many
1 answer
1,134 views
It’s time to go shopping! You grab your Best Purchase credit card, which has an annual interest rate of 18%. The unpaid
0 answers
557 views
1. Calculate the interest charge on a $5,000 balance with your current 16.5% annual interest rate.
2. Calculate the interest
2 answers
456 views
I need to research the root cause of disease classification structure and how it is linked to the outcomes of both the
1 answer
419 views
What is the sum of all positive integers N<=1000 such that N equals 13 times the digit sum of N ?
1 answer
458 views
Alonzo plans to retire as soon as he has accumulated $250,000 through quarterly payments of $2,500. If Alonzo invests his money
3 answers
952 views
Simplify arctan 1/3 + arctan 2/3(round to the nearest degree).
1 answer
1,547 views
This has to do with vectors...I'm wondering if I set up the diagram correctly?
A plane has a speed of 250mph and flies with a
3 answers
539 views
This has to do with dot products (I can't make the arrow above the u, i, or j).
Given u = 4i - 6j and v = -3i + 5j, find
1 answer
312 views
I have four problems I'm having trouble with. I need to solve the equations by completing the square.
1) w^2 - 5w = 11/4 2) z^2 +
1 answer
458 views
From a certain distance from the base of a Giant Sequoia tree a surveyor determines that the angle of elevation to the top of
4 answers
756 views
The problem is:
Verify the given linear approximation at a=0. Then determine the values of x for which the linear approximation
0 answers
634 views
On what intervals of t is the curve described by the given parametric equation concave up? Concave down?
x=t^2; y=t^(3)+3t
0 answers
452 views
I am so confused! The problem is:
Verify the given linear approximation at a=0. Then determine the values of x for which the
0 answers
607 views
Find the distance d(P1,P2) between the points P1 and P2
P1=(-1,5);P2=(2,4) d(P1,P2)=
1 answer
781 views
You bought an oil company stock for $83K per share. The price of the stock lost $16M during a six month period. Find the price
3 answers
485 views
Solve the equation on 0° ≤ θ < 360° and express in degrees to two decimal places.
sin(2θ) = -0.7843 I've gotten 308.345°
2 answers
1,475 views
how do you find the molarity of NaOH if 23.64ml of its solution is needed to neutralize .5632g of KHC8H4O4?
1 answer
756 views
The following heats of formation are used to find the change in enthalpy for the formation of tin chloride in the following
1 answer
579 views
What is the correct factorization of x^2(x-8)+5(8-x)?
1 answer
347 views
Explain how to factor the difference of two squares.
1 answer
513 views
A rock is dropped from a riverbank that is 4 feet above the surface of the river. After how many seconds does the rock hit the
1 answer
705 views
What is the wavelength of a 512 Hz sound wave in 20 degree C air?
1 answer
696 views
Suppose Z=a+bi , where a and b are integers and i is the imaginary unit. We are given that |1+iZ| = |1-iZ| and |Z-(13+15i)|<17 .
1 answer
366 views
The vertices of a cube are labeled with the numbers 0,1,2,3,4,5,6 and 7, such that no two vertices are labeled with the same
1 answer
445 views
How many ordered sets of positive integer triples (a,b,c) are there such that a+b*c=100
2 answers
550 views
When factoring an equation, how do I know if the result is prime? For example, I have a problem x^2 - 2x + 4 and I think it is
1 answer
524 views
I have several of these problems and am having trouble getting the hang of it.
Can you help me? Factor. If the result is the
1 answer
570 views
You are given an assignment to make 250ml buffer solution having 0.25M weak acid and 0.2M of its conjugate base. You have stock
1 answer
491 views
Pages
1
2
3
4
5
6
7
8
9
10