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Jenn
Questions and answers by visitors named
Jenn
Questions (204)
The sum of the reciprocals of two consecutive even integers is 9/40. this can be represented by the equation shown.
13 answers
7,939 views
Homework help!!
∞ Σn=1 -4(-1/2)^n-1 This converges at -2 2/3, or -2.66– Correct? The formula I used is a1/1-r. then i put
4 answers
805 views
In triangle ACE, G is the centroid and BE=9. Find BG and GE.
(segments BE and AD cross in the middle of the triangle, BE overlaps
10 answers
9,545 views
B is the midpoint of segment AC and D is the midpoint of segment CE. Solve for x, given BD=3x+5 and AE=4x+20.
Sorry I couldn't
15 answers
16,209 views
Find the co terminal angle for 15pi/4
5 answers
4,698 views
"Newton's law tells us that Force= Mass x Acceleration. We also know that Energy = Force x Distance and Pressure= Force/Area.
1 answer
561 views
"Newton's law tells us that Force= Mass x Acceleration. We also know that Energy = Force x Distance and Pressure= Force/Area.
1 answer
461 views
It turns out that the van der Waals constant b equals four times the total volume actually occupied by the molecules of a mole
1 answer
768 views
For HW we have to do test corrections on our practice exam, so if any of you know the answers to these I'd appreciate it. =]
(I�
1 answer
361 views
For HW we have to do test corrections on our practice exam, so if any of you know the answers to these I'd appreciate it. =]
1.
1 answer
465 views
Compounds like CCL2F2 are known as chloroflourocarbons, or CFCs. These compounds were once widely used as refrigerants but are
5 answers
4,415 views
which of the following is a chemical reaction?
A) propane forms a flame and emits heat as it burns. B) Acetone feels cold as it
4 answers
2,893 views
I need help on this question. Could someone give me tips on how to solve it?
thanks An emergency breathing apparatus often placed
1 answer
1,073 views
An emergency breathing apparatus often placed in mines works via the following chemical reaction: 4KO2(s) + 2CO2(g) to make
3 answers
2,806 views
I would really appreciate some help on this problem. =)
At 218 C, Kc = .00012 for the equilibrium NH4HS(s)<==> NH3(g)+ H2S(g)
4 answers
2,035 views
I have a science question that I don't quite understand.
Would you have to to have physical contact to exert a force? Not
1 answer
486 views
Define a variable and write an inequality. Then solve. A local summer baseball team plays 20 games each season. So far, they
2 answers
669 views
A two-digit # whoses cube root is the square root of the sum of its digits
5 answers
385 views
a jury of people is chosen from 10 men and 12 women. How many ways can a jury of 6 men and women be chosen?
4 answers
2,357 views
Four penguins are being pulled along very slippery (frictionless) ice by a curator. The masses of the three penguins are given
4 answers
1,010 views
WHICH SENTENCE IS MORE CORRECT AND WHY?
"Why can't I go with you?" asked Jake. or "Why can't I go with you?" Jake asked.
3 answers
411 views
Compare and contrast the processes of photosynthesis; aerobic respiration; and the two types of fermentation. Give examples of
2 answers
527 views
Which sentence is correct?why
I eat cake, carrots, pizza, and drink soda. I drink soda and eat cake, carrots, and pizza.
1 answer
418 views
Find the slope and y intercept. 3 - 1/2y=2x, 2y+9x+2=11+9x
1 answer
327 views
This is for organic chem lab.
I don't understand how to calculate the relative Rf values by setting ibuprofen to 1.00. For
2 answers
518 views
what are some of the ways that psychologists attempt to explain human behavior?
1 answer
458 views
Determine the percent composition of your unknown mixture.
My data for refractive indexes for acetone is 1.365 and water is
5 answers
4,118 views
how does carbon dioxide affect the ocean?
3 answers
497 views
A sample of 2-butanol has a specific rotation of -9.75 degrees. Determine the % ee (enantiomeric excess) and the molecular
3 answers
1,873 views
Can someone help me with these questions, I am having trouble with them. 3. Traumatic events do not always result in a
2 answers
1,050 views
An optical rotation study gives a result of +140 degrees. Suggest a dilution experiment to test whether the result is indeed
4 answers
1,328 views
Can someone help me with these questions, I am having trouble with them. 1. Traumatic events do not always result in a
4 answers
519 views
Partition (distribution) coefficient, k, of benzyl alcohol in hexane and water is 12.0. Choose for the correct equation for the
2 answers
694 views
Children, like adults, experience depression and anxiety. How do the experiences of children who feel anxiety or depression
3 answers
614 views
If sodium bromoacetate is used instead of sodium chloroacetate, how will the rate of reaction be affected?
5 answers
388 views
A peptide has the sequence:
Glutamate - His - Trp - Ser - Gly - Leu - Arg - Pro - Gly What is the net charge of the molecule at
1 answer
633 views
A peptide has the sequence:
Glutamate - His - Trp - Ser - Gly - Leu - Arg - Pro - Gly What is the net charge of the molecule at
2 answers
598 views
How does having a negative self-schema affect one's social interactions? How does social intelligence affect one's responses in
2 answers
562 views
Explain why the addition of bromine to trans-cinnamic acid takes place more slowly than the addition of Br2 to a normal alkene
2 answers
604 views
Are there Japanese Beetles in Italy? I couldn't find out if there were or not. Thanks for looking this up!
1 answer
413 views
I figured out this percent composition problem and I got REALLY close answers, so I wanted to check in with someone to confirm
1 answer
399 views
I figured out this percent composition problem and I got REALLY close answers, so I wanted to check in with someone to confirm
1 answer
439 views
Which bacterial plates control for:
1) If the E. coli cells were transferred correctly: 2) If the E. coli cells can grow on LB:
1 answer
429 views
f(x)=8 x^2 + x - 3 f(x+1)
*ah i cant get this one please help!
1 answer
228 views
Find x-intercept for the line 9x+10y+16=0
1 answer
383 views
Find the time it would have taken a horse to run:
displacement: +1609 m average acceleration: +0.0105 m/s^2 initial velocity:
1 answer
336 views
A rocket moves upward for 3 seconds
After 2 seconds, its speed is 10 m/s After another 1 second, its speed is 20 m/s Find
1 answer
355 views
I did 2/3 + 1/3 I got 3/3.
How do I do 7/15 + 9/20? I'm not good at adding fraction with different denominators.
4 answers
269 views
Solve the following inequality. Write the answer in interval notation
abs value of x+4<4
1 answer
361 views
1580 kg car is traveling with speed of 15 m/s. What is magnitude of horizontal net force that's required to bring the car to a
4 answers
813 views
292 kg motorcycle is accelerating up a ramp that is 30 degrees above the horizontal.
Propulsion force pushing the motorcycle up
5 answers
2,735 views
Rollercoaster has a dip that bottoms out in a vertical circle of radius r.
Passenger feels seat of car pushing upward on her with
2 answers
577 views
Angle x is in the second quadrant and angle y is in the first quadrant such that sinx=5/13 and cosy=3/5, determine and exact
4 answers
2,255 views
Locate the absolute extrema of the function on the closed interval
f(x) = 2(3-x) [-1,2]
4 answers
1,173 views
If Terry hiked 0.5km/h faster, he would have taken 1h less to complete a 15- km hike. What was Terry's hiking speed?
3 answers
368 views
Graph the following equation and find the Y-intercept Y=x+8
2 answers
460 views
Can some one help me get this into y intercept form x+3y=6. And then explain how to graph it
1 answer
386 views
can some one help me with this Find the equation of the line using these two points. (-3,-7) and (-9,-6) it has to be in
1 answer
280 views
Could someone help me please? Does anyone know how a human service agency determines goals and objectives? I'd appreciate it.
3 answers
372 views
Given f(x) = 2root x+7 and g(x) = 5x2 – 9, evaluate (f/g)(2) . I don't understand how to do this, can someone please explain
1 answer
374 views
Given f(x) = 2root x+7 and g(x) = 5x^2 – 9, evaluate (f/g)(2) . I don't understand how to do this, can someone please explain
1 answer
344 views
Given f(x) = 2root x+7 and g(x) = 5x^2 – 9, evaluate (f/g)(2) . I don't understand how to do this, can someone please explain
1 answer
337 views
operations on functions:
Given f(x) = 2root x+7 and g(x) = 5x^2 – 9, evaluate (f/g)(2) . I don't understand how to do this, can
1 answer
422 views
"Spreading light...without taking part in the affairs of the world...seeing as a trap...all expantion into Africa or the
2 answers
628 views
I need help with properties of a TRAPEZOID, please!
-Are opposite sides congruent AND parallel? -Are opposite angles congruent?
2 answers
1,024 views
A solution of sodium chloride in water has a vapor pressure of 18.5 torr at 25°C.
What is the mole fraction of NaCl in this
3 answers
921 views
I am doing an assignment on how to improve patient intake efficiency. Would assigning one staff member the task of dealing with
1 answer
347 views
Using the 68-95-99.7 rule:
Assume that a set of test scores is normally distributed with a mean of 100 and a standard deviation
2 answers
804 views
My fiancé does not think he needs a credit card right now. We are already in enough debt. It has actually consumed our lives.
2 answers
600 views
My fiancé does not think (he) needs a credit card right now. (We) are already in enough debt. It has actually consumed (our)
2 answers
532 views
Ok i need to write a paragraph and then find the adverbs and adjectives. I have found some of them, but I am afraid I might of
4 answers
578 views
what impulse is needed to stop a 45 g mass traveling at 42 m/s?
4 answers
2,372 views
Will Zinc react with Zn(NO3)2, Cu(NO3)2,Pb(NO3)2, Mg(NO3)2, AgNO3, Al(NO3)3, or Fe(NO3)3
2 answers
637 views
Will Na2CrO4 react exactly the same as Na2CrO7 when mixed with Pb(NO3)2
3 answers
505 views
Assuming gasoline is 100% isooctane, with a density of 0.692g/mL, what mass of carbon dioxide is produced by the combustion of
4 answers
1,264 views
A uniform board 12 ft long weighs 10 lbs. Two feet from the left is centered a 3 lbs. structure. How far from the left end is
4 answers
393 views
two equal mass cars collide head to tail and their bumpers lock. One car has a velocity of 10m/s and the other is at rest. what
3 answers
529 views
two equal mass cars collide head to tail and their bumpers lock. One car has a velocity of 10m/s and the other is at rest. what
2 answers
988 views
a satellite is in a circular orbit at a constant velocity around the earth. how much work is done on the satellite?
4 answers
540 views
Determine the exact value for the constant k such that the area of the region bounded by the curves y=x and y=kx^2 is equal to
1 answer
489 views
Help!
Initially there are 6x10^9 radioactive of element W (decay constant 0.173/day) in a sample. As a nucleus of W decays, it
1 answer
418 views
What are three most important concepts or principles of ethics involved in medicine and the provision of health care services?
1 answer
446 views
Input 4 21 36 38 56
Output 57 40 25 23 5 what is the rule?
1 answer
326 views
input 50 1 10 25 5 2
output 1 50 5 2 10 25 What is the rule?
1 answer
319 views
calculate the number of K atoms in a 1.00 ug sample of pure KCL. K=39.1 g/mol and KCL= 74.6 g/mol.
1 answer
397 views
What is the molarity of the hydrochloric acid solution used if 25mL of it reacted with excess calcium carbonate to produce 5.3g
3 answers
939 views
multiply and simplify
k^2+10k+16 k^2+6k __________ x _________ k^2+14k+48 k^2+5k+6
2 answers
762 views
Why is propanol ammonia a better separator of red leaf extract in thin layer chromatography that propanol water?
2 answers
515 views
find the given fuctions f and g, find f*g and state the domain of f*g, f(x)=�ã2x-5,g(x)=|x-1|
1 answer
365 views
find the given fuctions f and g, find f*g and state the domain of f*g, f(x)=�ã2x-5,g(x)=|x-1|
1 answer
317 views
When three or more lines intersect at one point they are, ______.
Thank You ^0^
5 answers
3,488 views
For the given function f,g, and h, find f*g*h and state the exact domain of f*g*h
f(x)=e^x g(x)=log_x h(x)=x/x+8
1 answer
847 views
For the given function f,g, and h, find f*g*h and state the exact domain of f*g*h
f(x)=e^x g(x)=log_x h(x)=x/x+8
3 answers
573 views
Identify and discuss the differences between the terms ‘theories,’ ‘laws,’ and ‘hypotheses.’ Describe ‘controlled
2 answers
1,014 views
On a number line, point A has coordinate 5, and point D is on the line such that AD = 8. What are two possible coordinates of
4 answers
602 views
FQR Question: The role of political parties inorganizing Congress
1 answer
330 views
Calculate pH when 0.060 mols of HCl are added to 1.000 L of a buffer containing 0.499M KH2PO4 and 0.193M K2HPO4
2 answers
502 views
Discuss, in detail, the role played by DNA and RNA in genetic diseases. What are the breakthroughs, if any, in the
1 answer
371 views
Compare the natural chemistry that takes place in the environment with the chemistry that takes place due to manmade factors
2 answers
518 views
If you have a tank containing 10,000L of water. what weight of CaSO4.H2O must be added to math the Ca+ concentration of 130ppm
1 answer
309 views
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