Tuesday
March 31, 2015

Posts by Brenda


Total # Posts: 429

chem1B
How many milliliters of 0.950M sodium hydroxide must be added to 35.0mL of 0.850M acetic acid to reach the equivalence point? should the volume of the hydroxide be the same as the volume of the acid because there is a 1:1 ratio? If so, how do I set up an equation or ICE table ...
March 8, 2015

math
When it is assembled, a flute is 28 inches long. The middle piece m is 5 inches less than twice as long as the first piece f. The last piece l is two-thirds as long as the first piece. Find the length of each piece of the flute
March 4, 2015

Math
-5,-3,-1,1,3,5 If a and b are different integers chosen from the list above, how many possible values are there of the product ab? I know the answer is 15 but do I always use factorial method whenever I meet questions that ask for how many possibilitites? And the factorial is ...
February 22, 2015

Math
Oo I see! ThanksSteve! Could you Lso hep me with the questions above?
February 22, 2015

physics
What is the net gravitational field due the sun and earth at the center of the moon? You are given that the mass of the sun in 1.99 x 10^30 and the mass of the earth is 5.97 x 10^24. The distance from the center of the sun to the center of the earth is 1.496 x 10^8 and the ...
February 4, 2015

accounting
Analyze the following scenario: River County is planning several capital acquisitions for the coming year. These include the purchase of two new garbage trucks at $150,000 each, one new bulldozer at $240,000, three new riding lawn mowers at $16,000 each, and construction of an...
January 26, 2015

MATH
George saves 18% of his total gross weekly earnings from his 2 part-time jobs. He earns $6.25 per hour from one part-time job and $7.50 per hour from the other part-time job. George works a total of 40 hours between the two jobs each week. What additional information is needed...
January 15, 2015

algebra
Of 256 consumers polled, 78 people like thrillers and 116 like both thriller and comedies. how many only prefer comedies?
January 5, 2015

geography
to accommodate the rapid human population growth, the water supply should increase by- a. 5% for 15 years b. 20% for 15 years c. 50% for 10 years d. 10% each year over next 2 decades
January 3, 2015

GEOGRAPHY
which of the following demographic characteristics distinguishes Europe's population from that of Asia?
December 30, 2014

language arts
What does the phrase as friendly as a nest of yellow jackets mean in paragraph 2?
October 28, 2014

French
J'/ ordinateur/ un / avoir
October 14, 2014

AP Calculus
Using the definition of derivative find f'(x) when f(x) = (1/sqr x) + x.
October 7, 2014

DISCRETE MATH
How many different strings can be made from the letters in STATISTICS, using all the letters
September 29, 2014

math
Identify the solution(s) of the system of equations, if any. x + 5y = 6 6x - 15y = 18
September 27, 2014

Math
Sarah bought 1.4pounds of seed that costs 0.4 per pound. How much does Sarah pay for the seed? You are suppose to use a 10x10 decimal model
September 15, 2014

English
When there are thousands of written materials floating in cyberspace' what is the most important criterion to consider when choosing sources of information for your research paper? A. Relevant B. Current C. Famous author D. Impressive web site
July 9, 2014

English
An extensive list that identifies sources in cited in your research report is called a (n). I put B but I am not sure
July 9, 2014

statistics
What formula do I use to solve: A sample with a mean of M = 40 and a variance of s2 = 20 has an estimated standard error of 2 points. How many scores are in the sample?
July 8, 2014

History
Please explain what the three reconstruction plans have in common and how they are different? Thank you
May 6, 2014

Geometry
Is anyone in connections academy? I need help with lesson 5 unit 4 geometry quiz polygons and angles Thank you
May 1, 2014

accounting
On December 31, 2013, University Theatres issued $500,000 face value of bonds. The stated rate is 8%, and interest is paid semiannually on June 30 and December 31. The bonds mature in 15 years. If required, round your answers to the nearest whole dollar. Follow the format ...
April 22, 2014

Statistics
Put in Binomial Probability Formula? probability ( 2 of 22 are lost) = C(22,2) (1/200)^2 (199/200)^20
March 9, 2014

Statistics
How do I plug this into the Binomial Probability Formula? prob(lost) = 5/1000 = 1/200 prob(not lost) = 199/200 prob( 2 of 22 are lost) = C(22,2) (1/200)^2 (199/200)^20 = .005224..
March 9, 2014

Statitics
A Department of Transportation report about air travel that 5 out of every 1000 pieces of luggage are lost by the airlines. You are traveling with a group of people who have 22 pieces of luggage. What is the probability that 2 of these are lost? Set up the equation and plug in...
March 8, 2014

math
adding and subtracting fractions with unlike denominators
February 18, 2014

Physics
A 55 kg box is pulled with constant speed across the floor with a rope that is at an angle of 40 degrees above the horizontal. If the tension in the rope is 125n what is the coefficient of friction between the box and the floor?
February 17, 2014

math
How much total pounds of candy does Sam have...1/2,1/4,1/2,1/4,1/8,1/8,1/4,1/2,1/8? How much would he have if he redistributed the candy into bags with equal amounts, how much candy would be in each bag?
February 11, 2014

statistics
a sample of men's heights was taken. The average height was 68.5 inches, the SD was 1.95 inches. Use the normal curve to estimate the percentage of men with heights between 69 inches and 70 inches.
February 7, 2014

Math
What should you say if you see a tall, wrought-iron tower in Paris?
January 27, 2014

chemistry
bobpusrsley my answer is 700 hundred for the question A I just don't know how to show the work can you help me with that please.
January 16, 2014

chemistry
The best means of personal protection from radiation for emergency responders is the implementation of three basic principles: time, distance and shielding. Please show your work when answering the following questions: a. Using the inverse square law of radiation, what Geiger ...
January 16, 2014

Finate Mathematics
Is it true that the y-intercept of the straight line with equation Ax + By + C = 0 is -C/B (B ‚ 0).
January 3, 2014

English
Which marks of punctuation would be appropriate to set off the italicized words in the following sentence? One day my dad and his brother stop me if you've heard this story started out on what they thought would be an uneventful drive to work.
December 29, 2013

math
how to write 7/8 as a decimal
November 12, 2013

Criminal Justice
What are the top two theorys of interpreting the constitution if we eliminated judicial review?
November 1, 2013

physits
if the treadmills initial speed is 1.6 m/s what's it final speed
October 3, 2013

Pre-Cal
For given functions f and g find formulas for a)f o g and b)g o f. Simplify results as much as possible. f(t)= t-3/t+6 , g(t)= 1/(x+6)^2
September 17, 2013

Math (College Pre-Cal)
For given functions f and g find formulas for a)f o g and b)g o f. Simplify results as much as possible. f(x)= x+7/x-13 , g(x)= 1/x+1
September 17, 2013

suno
a 250 g yoyo is swung on the end of a 50cm string at a constant speed of 4/ms. the centrpetal force acting on the yoyo
September 14, 2013

math
Is it 56?
September 12, 2013

math
I am a 2 digit number. I am even. My digits have a difference of 1. I am not a multiple of 5. The sum of my digits is 11. What number am I?
September 12, 2013

College Geometry
A: 3=(3/2)sin(2tt/3)=3,3/4 sq units and so on. 3=3*tan(tt/3)=3,3 sq units. B: go 3.5 C: 3, 6,9, 12. D: not sure E: they go up. F: 6, 12, 18.?
September 3, 2013

Chemisty
How do I solve what is the mass of a 32.5 mL sample of ethanol if the density of ethanol is .789 g/mL. I know Mass = Density * Volume. So 32.5 mL * .789g/mL = the mass, but I don't know how to solve that.
August 26, 2013

Math
Write the ratio 2.7kg to 1.8kg as a fraction to the simplest form, with whole numbers in the numerator and denominator.
July 31, 2013

biology
Jesus. Jesus is always the answer. No but I found this page on google and I need the answer to this question for my bio assignment. We're all children of God. Love thy neighbour. Whats the answer fam?
July 8, 2013

conceptual science
In the absence of air resistance, a ballplayer tosses a ball straight up. (a) By how much does the speed of the ball decrease each second while it is ascending? (b) By how much does its speed increase each second while it is descending? (c) How does the time of ascent compare ...
June 23, 2013

Accounting
True
June 9, 2013

algebra
Which point lies on the line defined by the equation 4x+3y=27 A. (-3,5) B. (5,3) C. (3,5) D. (-5,3)
June 4, 2013

CRT/205
I have to identify the rhetorical devices in this article race, class, and real estate by Sheryll D. Cashin august (2004)
June 2, 2013

chemistry
what is the percentage of alcohol in a misture containing 1500 mo of witch hazel (14% alcohlol), 2000 ml of glycerin, and 5000 mls of 50% alcohol?
June 2, 2013

algebra
how many grams of 2.5% hydrocortisone cream should be mived with 360 g of 0.25 to make a 1% hydrocortisone cream
June 2, 2013

math
The Flour Power Bakery makes 200 cherry cheesecakes at a cost of $2.45 each. If a spoilage rate of 5% is anticipated, at what price should the cakes be sold to achieve a 40% markup based on cost?
May 31, 2013

Accounting II
calculate the total dividends and the per-share dividends declared on each class of stock for each of the six years.
May 22, 2013

n-clex RN
which book is good to study for n-clex rn
May 10, 2013

MATH
CALCULATE THE MISSING LENGTH VOLUME= 1,000 CM CUBED
May 9, 2013

Business Law
yes
May 4, 2013

American History
Awesome thanks Ms. Sue you are awesome
May 2, 2013

American History
Ms Sue am i on the right track: The philosophers Ralf Waldo Emerson and Henry David Thoreau, poet Walt Whitman fought for self-reliance and independence. Many American philosophers of this period argued against slavery: William Lloyd Garrison, an abolitionist whose works were ...
May 2, 2013

American History
During the 1820 and 1830 a distinct American culture began to emerge. What philosophies, artists and artists works contributed to this culture? What were the unique American themes explored within these works? Help I dont know where t begin to answer this question especially ...
May 2, 2013

HCS/335
what is the historical and current impact of the biomedical issue?
April 23, 2013

english
i need help to i think is c.
April 22, 2013

college algebar
logb x= logb(x+2)-logb8
April 13, 2013

statostocs
The Precision Scientific Instrument Company manufactures thermometers that are supposed to give readings of 0°C at the freezing point of water. Tests on a large sample of these thermometers reveal that at the freezing point of water, some give readings below 0°C (...
April 10, 2013

math
Determine the value of x(4 - x) + 2 when x = –1.
February 12, 2013

college algebar
5< x-2/6 <6
February 11, 2013

algebra
70% = 7 ft (10ft x 70% = 7ft) after 10 bounces 10 x 7ft = 70 ft
February 10, 2013

business
using your full purchasing power, substituting products or suppliers, and placing high-volume orders
February 10, 2013

Science
Need help with a research topic for a paper on conservation of fresh water. I have to include two disciplines of classes - history and human and family development. Also, I need to integrate a theory - Bandura's theory of modeling? Can anyone help me? Throw me a bone to ...
February 10, 2013

Education/Technology
I would go with D. They are portable - think of a CD or an USB device. You can insert a CD or USB and take it out. If the teacher changes classes, she can take her removeable media with her.
February 10, 2013

math
Generalize the pattern for the division of (x^n)-(y^n) by x-y
February 2, 2013

math
n points are arranged on a cirlce and all the chords drawn. Let I(n) be the number of intersection points inside the circle if no 3 chords are concurrent. Find a formula for I(n).
February 2, 2013

math
thank you!!
February 2, 2013

math
n points are arranged on a cirlce and all the chords drawn. Let I(n) be the number of intersection points inside the circle if no 3 chords are concurrent. Find a formula for I(n).
February 2, 2013

alphabetize
How do you alphabetize(using the actual number) 7 and 150?
January 28, 2013

math
what is an example or a quintic function with exactly four real zeros?
January 28, 2013

math
What is an example of a quintic polynomial function that has exactly four zeros?
January 28, 2013

math
What is an example of a quintic polynomial function that has exactly four zeros?
January 28, 2013

algebar
A rectangle is 5 times as long as it is wide. If the area is 125 square feet, find its perimeter.
January 26, 2013

Chemistry.
Caculate the wavelength of light emitted when each of the following transitions occur in the hydrogen atom. A.) n=3->n=2 B.) n=4->n=3 C.) n=2->n=1 How do you do this. Could you please just show me step by step for atleaset one. Please!
January 24, 2013

Chemistry
When n=3, the possible values of l are: 5, 4, 3, 2, 1, and/or 0? How do you know?
January 19, 2013

Chemistry
a.) Caculate the energy of light emitted when an electron moves from n=2 to n=1 in the hydrogen atom. b.) Caculate the energy of light emitted when an electron moves from n=4 to n=2 in the hydrogen atom. c.) How many total different light energies can be emitted from an ...
January 19, 2013

math
For how many positive integers n does n! end in exactly 5 0s?
January 10, 2013

math
For how many positive integers n does n! end in exactly 5 0s?
January 10, 2013

math
What is the simplified form of the square root of 8x^5?
January 5, 2013

math
What is the simlified form of the square root of 8x^5?
January 4, 2013

math
You draw 2 marbles from a bag containing 3 blue marbles, 2 green marbles, and 5 red marbles without replacement. What is the probability of drawing a red marble and then a green marble?
January 4, 2013

Physics - Heat Transfer
aaaaaaaaahhhh. got it. you have to add them and set them equal to zero.
December 6, 2012

Physics - Heat Transfer
I am trying to calculate heat transfer between two objects. The units are as follows: m1: 100 g t1: 10 degrees C spec heat 1: 1.00 cal/g degree C m2: 200 g t2: 90 degrees C spec heat 2: 0.2 cal/gm degree C I set Q1 = Q2 m1 x spec heat 1 x delta T1 = m2 x spec heat 2 x delta T2...
December 6, 2012

Physics - Unit Conversion
I am trying to calculate heat transfer between two objects. The units are as follows: mass: grams specific heat: cal/gm degree celsius temperature: degree celcius My numbers aren't working out and I know how to do the problem. So, what's the deal with the gm. Is that ...
December 4, 2012

physics
1/200 = 0.005 meters / rad pi rad / node x 0.005 meters / rad = 0.0157 m / node
November 20, 2012

Math
(4.5 km/hr x X) + (3.5 km/hr x Y) = 40 Where X is the time there and Y is your time back. X = (40 - 3.5 Y) / 4.5 = 8.88 - 0.77Y Now plug X back into your original eqn and solve for Y: 4.5 (8.88 - 0.77Y) + 3.5Y = 40 Got it?
November 19, 2012

Physics
I think you solve it like this...do you have the answer to verify? I am no genius in physics... Forces in the x direction = friction = mass x acceleration. friction forces is found by multiplying the coefficient of friction (u) by the normal force. so. -u x mass x gravity = ...
November 17, 2012

Physics
ok. thanks.
November 17, 2012

Physics
Won't the amplitude and period be greater at a maximum?? Do you know why we can use the given values??? As far as I can tell, we assume that 0.6 and 4.1 are maximums...I am not following. This gives me the correct answer, so, I guess I'm not understanding the equation ...
November 17, 2012

Physics
The period of oscillation of a spring-and-mass system is 0.60 s and the amplitude is 4.1 cm. What is the magnitude of the acceleration at the point of maximum extension of the spring? I have too many unknowns to use the equation for frequency, period, acceleration, velocity. ...
November 17, 2012

Physics (maybe it's just math)
A sphere of copper is subjected to 89.7 MPa of pressure. The bulk modulus is 130 GPa. a) By what fraction does the volume of the sphere change? b) By what fraction does the radius of the sphere change? for a) I have dV/V = 0.00069 - this is correct. for b) the area I have 4/3 ...
November 17, 2012

physich
initial momentum = final momentum m1v1(initial) + m2v2(initial) = m1v1 (final) + m2v2 (final) Initial Final m1 = m m1 = m v1 = 280 m/s v1 = ? m2 = 16m m2 = 16m v2 = 0 v2 = ? Plug them in and cancel out your ms and solve for v1 or v2. Then go back and plug that solved value ...
November 4, 2012

algebra
35 cents to $2.20. Whats the question?
November 4, 2012

Grand Canyon University
Show that 480 W of power is expended by a weightlifter when lifting a 60-kg barbell a vertical distance of 1.2 m in a time interval of 1.5 s.
October 27, 2012

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