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Lucy
Questions and answers by visitors named
Lucy
Questions (625)
What did Francis Bacon believe scientists should rely on to explain the laws of nature?
A. Greek learning B. Church teachings C.
16 answers
asked by
Lucy
9,361 views
Use log5(2)=0.4307 and log5(3)=0.6826 to approximate the value of log5=54.
According to the example in my book I would divide
5 answers
7,512 views
Two oppositely charged spheres, with a centre to centre separation of 4.0 cm, attract each other with a force of magnitude
5 answers
2,285 views
How did the discovery of gold influence events leading up to Chief Joseph's war?
4 answers
900 views
Why are alloys used to make coins rather than the pure metal?
4 answers
1,123 views
As water drains out of a 2000L hot tub, the amount of water remaining in the tub can be modelled by the function
5 answers
2,848 views
What is the Ph for the solution made from 11.10mL of 0.278M HCL solution mixed with 70.90mL of 0.1300M ammonia solution? The pKa
4 answers
1,113 views
inquiry lab determining the refractive index of a variety of materials (Snell's Law Lab):
Basically this lab: We us a polar
3 answers
1,116 views
A tree is losing its trees. Two thirds fall off in the first week, two thirds of those remaining fall off in the second week,
7 answers
3,216 views
A ball of mass 0.6 kg, initially at rest, is kicked directly toward a fence from a point 20 m away, as shown below.
The velocity
4 answers
7,205 views
How many grams of ethanol must be added to 500.0 g of water to make a solution that freezes at 0.00 degrees fahrenheit? The
4 answers
2,717 views
The point (1/3,1/4) lies on the terminal side of an angle.
Find the exact value of the six trig functions, and explain which
4 answers
2,401 views
Reggie King took out a 36-month fixed installment loan of $26,000.00 at 8.5% APR to open a sporting goods store.
He began making
4 answers
242 views
Explain the conflict between the Tenth Admendment and the Necessary and Proper Clause. How was this conflict resolved in
1 answer
615 views
We're supposed to research famous actors who have played the role of Macbeth -- know any?
Thanks for your help ^^ Richard Burton?
1 answer
466 views
Macbeth Questions
1. (Act IV, i) The witches' pageant provides Macbeth with some important information but in the cryptic form of
1 answer
543 views
I'm supposed to do a Mini Chapter Presentation for Chapter 4.
I need to include a piece of research to explain
1 answer
558 views
What are some clues that someone is being ironic?
Others may have different or additional ideas, but the biggest clue to me is
1 answer
450 views
I need to write an essay outline on "phishing."
(Phishing is a form of identity theft where a scammer sends someone an email that
1 answer
564 views
She is a very capable black woman.
If that is an effort to write a politically correct non-racist sentence, you have nearly
1 answer
495 views
Please could someone advise me on how to write a balanced equation for the breakdown off H2SeO3.
The solution is dissolved in
1 answer
466 views
Please could you tell me if I am going in the right direction.
I am trying to write molecular formula for As2O3 I make molecular
1 answer
769 views
Why is the colour of the light emitted by an element in its gaseous state characteristic of the element? And why does hydrogen
1 answer
446 views
A drop of oil volume 0.05cm^3 is released from a medicine dropper on to a calm surface of a pond where it spreads out to cover
1 answer
589 views
Please could someone advise me on answering this question. I need to explain why when infrared radiation falls on fluorescent
1 answer
626 views
Why was the war in the air a significant battle of WWI? (Three reasons)
Also, supporting evidence and examples would be helpful
1 answer
485 views
You answered a earlier post on a question for someone with the same question I am trying to answer.
The hydrolysis of tocainide
1 answer
548 views
About Cleopatra VII...
Why do you think she is so famous? What about her as made her so iconic?
1 answer
610 views
3.
1 answer
224 views
What is mechanized recreation?
Please and thank you! Mechanized recreation is anything people do for fun that involves any kind
3 answers
721 views
if a box weigh 2 2/3 pounds. how much will 1 1/3 boxes weigh
4 answers
405 views
Questions about ionic radius...
Why do the noble gas elements not have ionic radii? Why do boron, carbon and silicon not have
2 answers
501 views
I just need help with this one question, and then once I know how to do the steps, I think can do the others.
--- The average
3 answers
872 views
This is a kind of general question, but I was wondering if you have any tips on successful methods of studying.
Also, reducing
3 answers
601 views
5.000g / 2.5mL = ?
1 answer
286 views
Suppose a piece of lead with a mass of 14.9g at a temperature of 92.5 degrees C is dropped into an insulated container of water.
3 answers
773 views
Identify the graph of the solution set of 8.5>6.1 +0.6y.
Would the answer be all numbers 4 and greater? Thanks.
1 answer
427 views
One number is two less than a second number. If you take one-half of the first number and increase in by the second number, the
2 answers
1,281 views
Two sides of a triangle are equal in length. The length of the third side is three meters less that the sum of the lengthsof the
3 answers
760 views
Solve the inequality:3{m-4}>6.
The {} equals the inequality signs since I couldn't draw a line on the computer. Thanks.
1 answer
363 views
Solve the inequality: 3[m-4]>6.
[]=the straight lines indicating inequality. Thanks for the assistance.
3 answers
434 views
I have a 1000 ohm resistor with a measured resistance of .967 how do I use submultiples or mutliples to get it in the SI units?
1 answer
422 views
One mole of methane has a mass of 16.0 grams. 1000cm3 of methane have a mass of 0.174 g. What is the correct expression for
2 answers
538 views
Well, my assignment is to write a news article on the story of the conflict between Beowulf and Grendel.
But one of the criteria
3 answers
614 views
If 0.385 g of a gas occupies a volume of 200mL at minus 73 degrees C and 750 torr, what is the molecular mass of the gas?
4 answers
948 views
How did The Canterbury Tales (by Geoffrey Chaucer) change the English language?
I know it was very successful in Europe and
1 answer
1,209 views
Find DE if matrix D= Row 1= -2,4,6 and ROW 2= 5,-7,1 and matrix E= Row 1= 1,-2
Row 2= 0,-4, and Row 3= -3,4 WORK:
2 answers
536 views
How do you factor 12x^2+8x-15? Thanks in advance.
3 answers
409 views
The graph of a line through (2,3) that is perpendicular to the line with equation x = -1 also goes through which point?
How to
4 answers
381 views
What property of liquids and solids is crucial in chromatography?
1 answer
418 views
How many milliliters of NH3 (at STP) are needed to react with 45.0 mL of NO2 (at STP) according to the equation:
8NO2 (g) + 6NH3
3 answers
1,119 views
What mass of sucrose, C12H22O11, is needed to make 500mL of a 0.20M solution?
Help please... Thanks.
4 answers
2,903 views
Okay, I know I asked this before (a while ago), except I lost the link to my original question and the answer to it...
What
1 answer
363 views
1) Write the standard form of the equation of the line parallel to the graph of 2y-6=0 and passing through B(4,-1).
Answer: y+1=0
2 answers
829 views
For a lab, I have to write out the balanced equation for the titration of vinegar (containing acetic acid) with sodium
2 answers
581 views
Find the concentration of H3O if the pOH of a solution is 11.700:
So far I have: pH= 14.000- pOH which is 14.000-11.700=2.300 pH
4 answers
1,582 views
Write the net ionic equation for the reaction between sulfuric acid and potassium hydroxide.
I got 2H^+ + 2OH^-1 ==> 2H2O. Is
3 answers
3,328 views
What are some practical applications of chromatography?
1 answer
479 views
Compound Identification
How can I identify the anion of an unknown solution? - The possible cations in the solution are Ag, Al,
2 answers
745 views
I added amylase to a cornstarch suspension.
I thought that amylase breaks down starch into oligosaccharides. But then I heated up
1 answer
575 views
Phenolphthalein is an indicator that changes colour to pink/purple between pH 8-->10, however, neutralization occurs when pH=7.
4 answers
1,729 views
Write an equation in standard form for a line with an x-intercept of 2 and a y-intercept of 5.
I cannot find any examples of how
4 answers
1,820 views
The pH of healthy lakes is around 6.0. Due to acid rain, the pH of our lakes & rivers is decreasing. At low pH levels, producers
3 answers
433 views
How many joules are needed to heat 8.50 grams of ice from -10.0 degrees C to 25.0 degrees C?
2 answers
601 views
Calculate the enthalpy change for the reaction 2C + H2 yield C2H2 given the following reactions and their respective enthalpy
3 answers
1,195 views
Which system is inconsistent?
A) y=0.5x x-2y=1 B) 2x-y=8 4x+y=5 C) x+y=0 2x=y D) y= -1 x=2 Answer: A Thanks
1 answer
336 views
Calculate the enthalpy change for the reaction 2C (s) + H2 (g) yield C2H2 (g) given the following reactions and their respective
3 answers
4,140 views
Solve: 3+2(1-x) >6 or 2x+14 <=8. Graph the solution set on a number line.
When I solved the equations for the first one I got
4 answers
752 views
Use two ordered pairs to write a prediction equation. Then using your prediction equation to predict the number of comic books
4 answers
1,902 views
A furniture company displays bedroom sets which require 21 square meters of space and living room sets which require 42 square
4 answers
845 views
The problem simply is this:
Evaluate: 12 5 -2 -3 0 1 -5 4 2 These figures are in matrix form. I don't understand what it is I am
4 answers
390 views
Two negatively-charged bodies with
-5.4e-5 C are 0.20 m from each other. What force acts on each particle? F=kqq/d^2
4 answers
1,451 views
Why do lungs feel spongy?
Is it because they contain alveoli...?
1 answer
467 views
My assignment is to write an exlpication of a peom by emily dickinson. The poem is:
Hope is the thing with feathers That perches
3 answers
657 views
The problem states: Saturn is approximately 1.4x 10 to the 9th power kilometers from the Sun. If light travels at approx. 3.0 x
2 answers
754 views
The problem is 5x to the 3rd times (7x)squared.
I multiplied (7x)(7x) first and got x squared + 14x + 49. Then I multiplied each
2 answers
528 views
How do I work the following problem? I cannot find an example in my book that shows how to divide when there are two variables
2 answers
851 views
Write the standard form of the equation of the line that passes through (-3,7) and is perpendicular to the line with the
1 answer
410 views
A ball falling from rest is located 45 m below its starting point 3.0 s later. Assuming that its acceleration is uniform, what
4 answers
711 views
So...
The task is to evaluate the design of three types of car tires, and explain how each type differs to maximize performance.
2 answers
1,099 views
State the possible number of imaginary zeros of g(x)= x4 + 3x3 + 7x2 - 6x - 13.
I came up with the answer of 2,4 or 0. Is this
2 answers
1,227 views
State the number of positive real zeros, negative real zeros, and imaginary zeros for g(x)= 9x3 -7x2+10x-4.
Since there were 3
3 answers
917 views
The question simply states-solve.
-x^4+200=102x^2 I rearranged the equation so that I have x^-102x^2+200=0 Since I cannot factor
5 answers
605 views
I have to compare and contrast three types of tires, and relate them to physics.
I've chosen: <li> Racing tires <li> Winter tires
2 answers
689 views
Write 36x^2-360x-25y^2-100y=100 in standard form. Then state whether the graphs of the equation is a parabola, circle, ellipse,
4 answers
733 views
Write an equation for the ellipse with end points of the major axis at (7,1) and (-7,1) and end points of the minor axis at
2 answers
541 views
Simplify:
4xy^3/z^2 divided by (8x^2y/z^3)^2 I came up with the following: 2.2.x.y.y.y.z.z.z.z.z/z.z.z2.2.16.x.x.x.x.y.y
2 answers
1,047 views
Simplify:
d/d^2-9 + 5/2d+6 I got as far as d/(d+3)(d-3) + 5/2(d+3) but do not know how to further simplify. Thanks for any help
1 answer
373 views
Determine the equation of any vertical asymptotes and the value of x for any holes in the graph: f(x)= x^2-11x+18/x-2.
I factored
4 answers
1,265 views
Write an equation for the parabola with focus (1,3) and vertex (0,3).
I cannot find any example in my book that works a problem
2 answers
1,212 views
Write an equation for an ellipse if the endpoints of the major axis are at (1,6) and (1,-6) and the endpoints of the minor axis
5 answers
537 views
What are some of the differences between the creation stories of the Native groups and the creation stories of the Europeans who
5 answers
592 views
What is the best way to study for a math test?
Also, what is the best/most efficient way to write a math test? The format of my
4 answers
1,321 views
Lately, for the past couple of tests I've written, I suddenly blank out and can't recall any information...
Normally I've been
3 answers
735 views
Simplify: 7/m-6 - m/6-m
Answer: m-7/m-6 Is this correct? Thanks
1 answer
277 views
Solve: 4-1/b<3/b
1 answer
269 views
Thomas can do a job in 4 hours. Julia can do the same job in 6 hours. How many hours will it take the two of them to do the job
5 answers
1,050 views
What does impartial mean?
1 answer
331 views
Graph 16x^2 + 9y^2 = 144
I know that you cannot graph this but the graph of this equation should be a circle I think. I have
5 answers
747 views
Graph: x^2/9 - (y+2)^2/9 = 1
I do not have any points to graph for this equation. Any suggestions? Thanks.
1 answer
292 views
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