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Sara
Questions (2,407)
Which was not a reason for U.S. intervention in Latin America during the Cold War era?
Allende's rise in Chile Sandinista control
2 answers
1,004 views
Describe how the nervous system helps different parts of your body communicate with one another the moment you begin to pet a
1 answer
1,156 views
Which pronoun correctly completes the sentence?
Please send __________ the directions when you can. A. she and I B. she and me C.
5 answers
3,036 views
A good leader is never a follower.
True False
2 answers
1,027 views
Achieving happiness in your future career is an example of a short-term goal.
True----> My answer False
1 answer
1,083 views
Tom uses pesticides to manage his garden. He is:
saving time and money conserving water ----> My answer exposing the environment
6 answers
1,408 views
onathan wants to go to The Ohio State University someday. His dad is trying to decide between two job offers, one of which is
1 answer
1,005 views
What is the value of the function when x = 3?
x −2 −1 1 3 4 y 4 3 6 5 8
1 answer
393 views
Match the term with its definition.
(Points : 12) Potential Matches: 1 : to cook uncovered by direct heat 2 : to cook in a small
1 answer
1,232 views
what are the six questions for examining a source’s reliability?
1 answer
777 views
What are Eleanor of Aquitaine's ideas and what did she want to be when she grew up
1 answer
370 views
How does comparing the embryos of different organisms support the theory of evolution?
The embryos of all organisms are
2 answers
2,305 views
Why was Charles Darwin able to offer a large amount of evidence for his theory of evolution by natural selection?
He compiled the
3 answers
1,158 views
Based partially on his comparative studies of the fossils of woolly mammoths and the bones of modern-day elephants, Georges
3 answers
995 views
a ball of mass m is thrown vertically upwards with Vo= 10j m/s. Study nature of motion
1 answer
462 views
Balance the reaction using half reactions under BASIC conditions:
Al + CrO4^-2 ---> Al(OH)3 + Cr(OH)3 I tried to solve this
1 answer
2,426 views
If investors sell their stocks and increase their money holdings due to a bad economy then
A. demand for loanable funds will
2 answers
1,098 views
Given the balanced net ionic equation
Zn(s) + 2H^+(aq) <---> Zn^2+(aq) + H2(g) would the cell notation be: Zn|Zn^2+||2H^+|H2 (i'm
1 answer
916 views
From the equation below, how many grams of barium sulfate can be produced from 20.8 g of barium chloride?
BaCl2 + Na2SO4 -> BaSO4
2 answers
4,461 views
When 2.05 moles of CH4 are mixed with 5.03 moles of O2 in the reaction below, the limiting reactant is
CH4 + 2O2 -> CO2 + 2H2O
2 answers
2,387 views
Balance the reaction using half reactions under BASIC conditions:
Al + CrO4^-2 ---> Al(OH)3 + Cr(OH)3 I'm not sure how to do this
1 answer
620 views
I am given a question where I have to state which combination of electrodes will result in the greatest voltage and which will
4 answers
1,171 views
Can someone help me?
If a and b are any two real numbers, explain how you calculate the difference a – b. Be sure to include
1 answer
539 views
If there had not been a system of military alliances in place in Europe in 1914, would the assassination of Archduke Franz
3 answers
1,706 views
How did World War I and its aftermath contribute to the rise of fascism in Europe in the 1920s?
2 answers
814 views
Which best describes Hitler's beliefs as expressed in Mein Kampf?
Revolution was needed to create a classless society. Germany
3 answers
1,800 views
Which is true about communism but is not true about fascism?
uses secret police creates powerful leaders opposes democracy has
4 answers
1,994 views
Which best describes Vladimir Lenin's vision for Russia?
Professional revolutionaries would seize power for the working class.
1 answer
1,080 views
I need help, we start to write a research paper and we picked our own topic, 1 requirement was to use (mlk letter from
6 answers
547 views
I am given a question where I have to state which combination of electrodes will result in the greatest voltage and which will
2 answers
1,352 views
Determine the pH of a buffer made from 250 ml of 0.50M HF and 150 ml of 0.75 M NaF.
3 answers
852 views
How would I find the pH of 0.25 M carbonic acid? also the pH for 0.075 M CN^-?
2 answers
835 views
Determine the molar solubility of Y for XY2 if Ksp is 2.2x10^-4.
The 2 in Xy2 is a subscript. I found the Ksp equation which is
1 answer
1,009 views
Determine Ksp if the equilibrium concentration of X is 0.02 M and Y is 0.05 M given that X2Y(s)<-->2X^+(aq)+Y^(2-)(aq).
The 2 in
3 answers
601 views
Determine Qsp if 8.7 ml of 2.1 M AgNO3 is added to 1.7 ml of 1.5 M CaCl2 .The Ksp of AgCl is 1.77 x 10^-10.
2 answers
509 views
Story : The Ethanol Debate
Natalie Stewart What feature of the selection BEST illustrates that it is a persuasive essay? A) < --
4 answers
5,327 views
The reaction N2(g)+3H2(g)<-->2NH3(g) begins with 1.15 M N2 and 1.36 M H2. At equilibrium the concentration of NH3 is 0.78 M.
Dete
4 answers
1,015 views
Select the inequality that models the problem.
The length of a rectangle is four times its width. If the area of the rectangle is
1 answer
586 views
Researchers from around the world have declared this fast-acting, appetite suppressant as a modern medical miracle for Americans
1 answer
433 views
if 3 1/2 bags of seed cost $35, what will 4 1/2 bags cost?
3 answers
3,210 views
Eduardo started a business selling sporting goods. He spent $7500 to obtain his merchandise, and it costs him $300 per week for
2 answers
1,193 views
The length of a rectangle is four times its width. If the perimeter is at most 130 centimeters, what is the greatest possible
1 answer
921 views
The current in a stream moves at a speed of 9 mph. A boat travels 17 mi upstream and 17 mi downstream in a total time of 13 hrs.
1 answer
802 views
SAT scores are distributed with a mean of 1,500 and a standard deviation of 300. You are interested in estimating the average
3 answers
4,446 views
A flask contains 25.0 mL of diethyl ether weighth 18.74 µg (micrograms). What is the density of the diethyl ether and grams per
1 answer
777 views
Sulfur dioxide reacts with chlorine to produce thionyl chloride and dichlorine oxide
S: 32.0 amu O: 16.0 amu Cl: 35.45 amu SO2 +
1 answer
4,795 views
Aluminum metal reacts with iron (III) oxide to produce aluminum oxide and iron metal. Answers the following three questions
note:
1 answer
1,632 views
Solutions of sodium hypochlorite, NaClO are sold as bleach. They are prepared by the following reaction:
2NaOH + Cl2 --> NaCl +
1 answer
1,222 views
A flask contains 25.0 mL of diethyl ether weighth 18.74 µg (micrograms). What is the density of the diethyl ether and grams per
2 answers
676 views
In an experiment, 13g of methanol and 11 g of carbon monoxide were placed in a reaction vessel. Given the following reaction
C:12
1 answer
634 views
A mixture containing 11.9 g of calcium fluoride and 10.3 g of sulfuric acid is heated to drive off hydrogen fluorid. Given the
3 answers
744 views
Molarity
What is the final volume (in Liters) of a solution prepared by diluting 25 mL of 8.25 M sodium hydroxide to a
2 answers
2,117 views
An organic compound consists of only carbon, hydrogen, and oxygen. Through combustion analysis, 5.671g of water and 36.933g of
3 answers
997 views
What is the solution to the following system of equations
-2x+3y+z=5 x+5y+2z=17 To do this, I used elementary operations and
1 answer
445 views
How would I find the equilibrant of three vectors? I am given a graph of three different vectors which meet at the point (0,0)
1 answer
889 views
If 3(a,3,2)-2(3,b,b)=(-3,1,-2) determine a and b. Describe the set spanned by the vectors.
I don't know how to answer this
1 answer
367 views
What are the coordinates of the point on the graph of f(x)=(x+1)(x+2) at which the tangent is parallel to the line with equation
2 answers
637 views
What does it mean to span in R2? I have this question:
Which of the following sets if vectors span R2? a) {(1,1),(-2,-2)} b)
1 answer
568 views
An airplane is heading due east with an airspeed of 220km/h when it encounters a wind from the south at 76km/h. What is the
3 answers
2,155 views
For the function f(x)=x^3e^x, determine intervals of increase and decrease and the absolute minimum value of f(x)
To do this I
1 answer
638 views
Can you please explain how I would solve these questions?
1) Which point is 2 units from the line 12x-9y-5=0? a)(8,3) b)(7/6,
1 answer
623 views
Susan pulls on a rope sleigh with a force of 120 N. If the rope makes an angle of 25 degrees with the horizontal, what is the
2 answers
2,958 views
What are some things you can skip?
1 answer
388 views
How would I find the second derivative if f(x)= √(x^3+2) using the quotient rule.
I got to the step where
1 answer
416 views
How would I find the critical numbers of
f'(x)=(x-3)^3(x+4)(x^2+1)? The answer is x=-4, x=3
2 answers
506 views
What does Georgiana represent in "The Birthmark"?
feminine perfection<----- evil and greed the rewards of hard work the price of
1 answer
991 views
The pKa of acetic acid is 4.74. What is the buffering range of this acid and its conjugate base? Explain.
1 answer
2,766 views
The activity of a stock isotope is 10,000 DPM/0.10mL. If 0.25 ml of this stock is placed in 2.50 ml of water, what is the
2 answers
614 views
What is the nature of intersection of these three planes:
5x+3y-z=11 -2x-7y+10z=2 6x+21y-30z=-6 I know that the answer is two
2 answers
725 views
Determine the vector equation of a plane that contains the line with symmetric equation (x+3)/-2=(y+1)/5=(z+2)/4 and the point
1 answer
1,910 views
At what point does the line r=(-2,3,1)+s(2,3,-1) intersect the y-axis?
1 answer
953 views
What is the distance between the parallel lines having equations 2x+2y=16 and x+y=0?
I'm getting 2 as my answer but the answer is
4 answers
741 views
why does this equation 3xy +y = 0 represent two planes?
1 answer
391 views
How would I convert cartesian equation to parametric?
For example: 2x-y+3z-6=0
0 answers
399 views
Some number added to -12 is 45. Add this number to 30. Multiply the answer by 3. What is the final number?
1 answer
462 views
What does the electron shell rotate around?
1 answer
459 views
How are these two lines coincident?
1) r=(1,7)+s(2,5) 2) x=4t+3 y=10t+12
1 answer
346 views
The revolutionary war was fought on american soil. how do you think this fact influenced the role of women in war?
1 answer
564 views
I need help.
In a brief essay, explain three ways in which the Roman Catholic Church responded to the spread of Protestantism in
9 answers
2,284 views
A 5.0 M solution of HNO3 is titrated with 0.3 M NaOH. Identify the species that have the highest concenttrations in the solution
4 answers
5,154 views
A buffered solution was created by mixing solutions of NH4Cl and NH3 at 25 C. Which species, NH4+ or NH3, has the highest
1 answer
2,615 views
Half of Allan's test score plus eight equals 50. What did Allen score on his test?
1 answer
622 views
How would I find the direction vector parallel to a line? For example, how is (2,1) a direction vector parallel to the line
0 answers
400 views
determine the number of solutions, the generalized parametric solution, and explain why there are no integer solutions for the
1 answer
515 views
Can you please explain how to answer this?
What is a solution for the following system? x-4y+z=2 and -x+4y-2z=8 a) x=4s+12, y=s,
1 answer
331 views
Multiple choice: Can you please explain how to answer this?
Which point does not lie on the same plane as the points P(1,5,6),
1 answer
505 views
What is the distance between the parallel lines having equations 2x+2y=16 and x+y=0
a) 16 b) 4 root 2 c) 2 d) 8 I got the answer
1 answer
469 views
To answer this I would just sub in the x and y values right? I got a) as my answer since it equals 0.
Which of the following
1 answer
605 views
can you please explain how to answer this:
Which of the following is not a plane a) r=(1,3,4)+s(2,-1,2)+t(1,1,1), s,t∈R b)
1 answer
384 views
The shortest distance between a point and a line occurs at:
a) infinitely many points b) one unique point c) random points d) a
1 answer
918 views
Multiple choice.
How would I answer this in a short way? what is the distance between the skew lines L1:(0,4,-3)+s(-1,1,3),seR
2 answers
544 views
Two lines with the slopes m1=4/3 and m2=-7/2 intersect at (3,4). Determine the equations of the two lines and check your answer
2 answers
602 views
Determine the vector equation of a line passing through the point P(3,2,-1) and with a direction vector perpendicular to the
2 answers
3,909 views
Determine the slope of the tangent to the function f(x)=5e^x - 2e^(2x) at the point with x-coordinate x=1
1 answer
920 views
How would I write the equation y=3.9657(0.9982^x) in the format of g(x)=f(x)+f(x-60)?
1 answer
367 views
Find an equation of a line tangent to y = 2sin x whose slope is a maximum value in the interval (0, 2π]
I believe the equation
1 answer
594 views
Explain why the planes 3x-6y-9z+5=0 and x+2=2y+3z never intersect
1 answer
765 views
Does the point of intersection between L1:(4,9,2)+s(1,-1,-1), seR and Ls: (2,11,4)+t(5,-3,-4), teR lie on the plane
0 answers
423 views
How would I solve this equation for x?
0=3.9657(0.9982^x)ln0.9982
1 answer
335 views
How would I find the instantaneous rate of change using this formula y=3.9657(0.9982^x) and given a table of values?
1 answer
451 views
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