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Confused

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Questions (120)

A direct-current power supply of low voltage (less than 10 volts) has lost the markings that indicate whichoutput terminal is
1. 5 answers
2. 3,891 views
Help to solve this1/2 (3g-2) = g/6 nevermind I was missing a bracket in the solution. multiply both sides by 2 This gives
1. 2 answers
2. 590 views
Can you please help me with this problem? I asked earlier, but nobody was able to help me... I've been working on it for about
1. 1 answer
2. 455 views
Also I would like to know how to set this problem up in finding the answer:Find the second derivative. y= sqrt(3x+4) Thanks,
1. 1 answer
2. 1,301 views
Also can I get some help with this LONG, TIRESOME PROBLEM?Find the derivative using the chain rule. f(x)= ((3x-7)/(6x+3))^4
1. 1 answer
2. 574 views
PLEASE HELP ME SOLVE THIS PROBLEM:4((3x-6)/(6x+2))^3 * ((42)/(6x+2))^2 okay, here your going to use PEMDAS. Parenthesis,
1. 1 answer
2. 510 views
Write the equation of the line passing through (-3, -5)and (3,0).(a)y= -6/5x - 5/2 (b)y= 5/6x - 5/2 (c)y= 5/6 x + 2/5 (d)y=
1. 2 answers
2. 516 views
write the equation of the line with x-intercept (-7, 0) na d undefined slope.a) y= -7 b) x= -7 c) y= -7x d) x= 0 The answer is
1. 1 answer
2. 439 views
write the equation of the line which has y-intercept (0,5) and is perpendicular to the line with equation y=-3x +1a) y=-3x + 5
1. 3 answers
2. 629 views
find the slope of any line perpendicular to the line through points (6,7) and (5,8).a)-1 b)1 c)0 d)undefined y2-y1/x2-x1 = slope
1. 1 answer
2. 456 views
"Create a diagram in PowerPoint® or Word mapping job opportunities starting from, or advancing to, the position focused on in
1. 2 answers
2. 565 views
I need to determine a rule as to why the answer is C.A.) Jumping off of a balance beam is different from jumping off a
1. 11 answers
2. 1,095 views
If the stockroom fails to dry the KHP to remove the waters of hydration, the student's calculated concentrationfor the
1. 4 answers
2. 1,909 views
Three samples of an unknown acid are titrated with 0.4901 M NaOH. The average equivalent weight of the acid using the data below
1. 1 answer
2. 484 views
I'm doing an Equivalent Weight and Normality experiment and I got very confused on the discussion questions.[ the unknown is
1. 3 answers
2. 676 views
.1 M HCl + .1 M NaCl.1 M HF + .1 M NaF .1 M HBr + .1 M NaBr Which of the above would be considered buffers?
1. 2 answers
2. 949 views
Ascorbic acid, H2C6H6O6, is a diprotic acide with a K1= 7.9 E-5 and a K2=1.6E-12. In a .005 M aq solution of ascorbic acid which
1. 2 answers
2. 1,066 views
What could you infer/say if a person could distinguish the difference between regular and low fat foods?It's for my science fair
1. 1 answer
2. 527 views
Describe the social, economic, and political composition of the decade of corporate greed and how it affected the political
1. 3 answers
2. 612 views
Can someone help me find some websites speaking about the social, political, and economic compositions of the Reganomics and how
1. 3 answers
2. 1,057 views
A car is going 20m/s when they see a traffic light 200m ahead turn red. The traffic light is known to stay red for 15s. The
1. 2 answers
2. 801 views
A box moves down a conveyor belt the is angled at 15 degrees, at a rate of 6m/s. The box then enters a dump off that is 3m below
1. 1 answer
2. 443 views
A box moves down a conveyor belt the is angled at 15 degrees, at a rate of 6m/s. The box then enters a dump off that is 3m below
1. 3 answers
2. 501 views
what are the modifications and x intercepts of the cubed root of (1-x)-1?
1. 1 answer
2. 279 views
What is The solution set of 2k^2=21k-49 ?
1. 6 answers
2. 346 views
A function is a rule, which assigns one and only one range element to each and every domain element?I want to answer that this
1. 1 answer
2. 828 views
COS[ARCSIN (SIN 3PI/4)]=COS[ARCSIN (SQRT2/2)] =COS [PI/4] = SQRT2/2
1. 1 answer
2. 621 views
Other questions have been asked about the article "Contolling Irrational Fears After 9/11 and Identifying at least two arguments
1. 1 answer
2. 468 views
Since it is the very nature of terrorism not only to cause immediate damage but also to strike fear in the hearts of the
1. 3 answers
2. 659 views
Do you find my answers after the piece of the article to be correct? Do you think my argument is, in fact, and argument?Clearly
1. 4 answers
2. 490 views
The following data represent total personnel expenses for the Palmdale HumanService Agency for past four fiscal years: 20X1
1. 1 answer
2. 405 views
M divided by fiveHow would i translate that
1. 1 answer
2. 351 views
A Ferris wheel 28.0m in diameter rotates once every 21.0s.What is the ratio of a person's apparent weight to her real weight at
1. 4 answers
2. 1,357 views
The Political Noise Problem. The amount of background noise is important to television news reporters. One station developed the
1. 4 answers
2. 986 views
My son brought home this problem...Make a set of at least 12 numbers that have the following landmarks. minimum: 3 maximum: 9
1. 1 answer
2. 433 views
complete the tablefraction decimal percent 95% .80 3/9 6/8 66 2/3%
1. 3 answers
2. 494 views
I need help finding examples of discrete models used in addition. Can you explain this to me or show me a cite that might help.
1. 3 answers
2. 413 views
The aquation of tris(1, 10-phenanthroline)iron(II) in acid solution takes place according to the equation:Fe(phen)3^2+ + 3H3O +
1. 5 answers
2. 2,081 views
How long would it take to accumulate $2,000,000 at a rate of 5% with the starting amount of $1,150,
1. 1 answer
2. 451 views
1)A toy train is initially at rest on a track fastened to a bicycle wheel, which is free to rotate. How does the wheel respond
1. 4 answers
2. 2,889 views
An enzymatic hydrolysis of fructose was allowed to proceed to equilibrium at 25 degrees C. The original concentration of
1. 1 answer
2. 684 views
the standard state free energy of hydrolysis of acetyl phosphat is G= -42.3 kJ/mol. Calculate the free energy change for the
1. 2 answers
2. 541 views
What about this question?Calculate the mass (g) of PbSO4 that will dissolve in 2000 mL of 0.0694 M K2SO4 solution. The equation
1. 4 answers
2. 587 views
If 380. mL of 0.4294 M aqueous CaBr2 and 250. mL of 0.5880 M aqueous SO42- are reacted stoichiometrically according to the
1. 2 answers
2. 548 views
What is the rate of the following reaction (M/s) if the rate constant for the reaction is 0.500 L•mol-1•s-1 and the
1. 2 answers
2. 963 views
The rate of the following reaction:Radioactive decay of 90Sr, is characterized by the rate constant k = 0.024 year-1. What is
1. 2 answers
2. 801 views
The reaction,C2H5Br --> C2H4 + HBr, has a rate constant k = 0.0000100 s-1 at 363 °C and k = 0.000479 s-1 at 427 °C. What is
1. 5 answers
2. 1,622 views
If 270. mL of 0.08089 M aqueous Pb(NO3)2 and 710. mL of 0.05493 M aqueous Na+ are reacted stoichiometrically according to the
1. 2 answers
2. 769 views
If 0.0490 mol of solid CaCO3 and 380 mL of 0.135 M aqueous H2SO4 are reacted, what volume (L) of gaseous CO2 measured at 1.1 atm
1. 2 answers
2. 570 views
How do i solve this half reaction with Mg(OH)2(s) --> Mg(s)?Complete and balance the displayed half reaction in basic aqueous
1. 2 answers
2. 750 views
Enter the balanced chemical equation including states that describes the electrochemical cell that is represented by the cell
1. 4 answers
2. 549 views
What ideas can you propose for the future of processor design? What do you think the limit of clock speed for a processor will
1. 1 answer
2. 452 views
(2x(tothe2ndpower)-3x+4)-(3x(tothe2ndpower)-x+2= ????
1. 1 answer
2. 273 views
if a man is a hetero zygote for a trait but the woman is homozygous recessive, what are the chances that their children will be
1. 1 answer
2. 419 views
A professor knows that in her class 37% of the students have passed an Algebra course, 29% have passed an English course, and
1. 2 answers
2. 844 views
A professor knows that in her class 37% of the students have passed an Algebra course, 29% have passed an English course, and
1. 2 answers
2. 597 views
The sides and diagonal of the rectangle above are strictly increasing with time. At the instant when x=4 and y=3, dx/dt=dz/dt
1. 1 answer
2. 853 views
The function f is twice differentiable, and the graph of f has no points of inflection. If f(6)+3, f'(6)=-1/2, and f"(6)=-2,
1. 3 answers
2. 2,432 views
jenny is 5'10" tall. the heights of the girls in the school are approximately normally distributed with a mean of 5'5" and a
1. 4 answers
2. 667 views
Identify the study design best described by the scenarios or research questions presented below. Provide a two-sentence
1. 3 answers
2. 1,365 views
How would you factor this?f(x)=x^3-2x^2-4x-4
1. 1 answer
2. 254 views
what about this question:Determine the roots algebraically by factoring. a) x^3-8x^2-3x+90=0
1. 1 answer
2. 500 views
I need help finding the derivative of this function:f(x)=(X^2+2)^4/5 Thanks in advance! Any help would be greatly appreciated!
1. 3 answers
2. 463 views
Liam fires a bullet into a block suspended by two cables, embedding the bullet in the block. The mass of the bullet is 5g and
1. 4 answers
2. 542 views
how can you break apart arrays when you multiply by 3?
1. 5 answers
2. 1,775 views
HOBr (aq) <----> H+ (aq) + OBr- (aq), Ka = 2.3 x 10^-9Hypobromous acid, HOBr, is a weak acid that dissociates in water, as
1. 5 answers
2. 2,847 views
Hello,I have data here: tube # Contents Initial color (after 2 drops of universal indicator) Color after adding HCl Color after
1. 3 answers
2. 564 views
A 0.5224g sample of an unknown monoprotic acid was titrated with 0.0998M of NaOH. The equivalence point of the titration occurs
1. 5 answers
2. 3,161 views
Adding water to some chemicals can be dangerous because large amounts of heat are liberated. Which of the following does NOT
1. 4 answers
2. 974 views
dev.physicslab. org/asp/nyregents/2003/January/part3.aspWhy is the answer to #47 2 amperes? How do I get that?
1. 3 answers
2. 371 views
For an ellipse, one focus is (0,0), one vertex is (2,0), and the eccentricity is 0.4. How do I find the equation for the
1. 3 answers
2. 562 views
What alkane effuses at 1/5 the rate of He
1. 2 answers
2. 1,019 views
Provide a synthesis of the following aldehyde starting from ethylene. Show the reagents and products for each step.H2C=CH2 -->
1. 2 answers
2. 535 views
Ben eats a bowl of rice as he walks across the San Francisco Bridge. When he is finished, he drops his empty bowl 67m down to
1. 1 answer
2. 409 views
The Marshmellow man tromps along the streets of New York City with his blue sailor hat on. He tries to climb up a building to
1. 2 answers
2. 914 views
A fiery ball of wood is loaded into a medieval catapult to be thrown into a castle. Unfortunately, the attacking heathens are
1. 1 answer
2. 463 views
At the top of the Washington monument, a bird drops an acorn into the reflecting pool 169m below. If the acorn has a massof 1.0
1. 2 answers
2. 1,003 views
An astronaut drops a golf ball to the surface of the moon from a height of 1.5m. The golf ball has a velocity of 2.24 m/s right
1. 4 answers
2. 760 views
A tennis ball is dropped from 1.80 m above the ground. It rebounds to a height of 1.00 m (assume down to be negative). (a) With
1. 3 answers
2. 1,556 views
When the pendulum bob reaches the mean position, the net force acting on it is zero. Why then does it swing past the mean
1. 1 answer
2. 798 views
Which of the following is an example of diffuse reflection?light reflected from the surface of a dry asphalt roadway light
1. 3 answers
2. 949 views
Which combination of primary additive colors will produce yellow-colored light?green and blue blue and red red and green cyan
1. 1 answer
2. 463 views
Light cannot be linearly polarized by:transmission reflection diffraction diffraction
1. 1 answer
2. 714 views
When the pendulum bob reaches the mean position, the net force acting on it is zero. Why then does it swing past the mean
1. 2 answers
2. 746 views
An electron in a hydrogen atom relaxes to the n = 4 level, emitting light of 114 THz. What is the value of n for the level in
1. 3 answers
2. 2,985 views
For each of the bonds listed below use hybridized orbitals to classify the type of sigma bond that is formed between the two
1. 2 answers
2. 888 views
A rocket is launched at an angle of 56.0° above the horizontal with an initial speed of 103 m/s. It moves for 3.00 s along its
1. 2 answers
2. 1,130 views
A person's body is producing energy internally due to metabolic processes. If the body loses more energy than metabolic
1. 4 answers
2. 1,420 views
The region between the graphs of x=y^(2)and x=2y is rotated around the line y=2. The volume of the resulting solid is...I've
1. 2 answers
2. 1,312 views
Evaluate the definite integral.dx/(x*sqrt(lnx)) from 1 to e^4 I'm having trouble figuring this out, I might be overthinking it.
1. 2 answers
2. 1,121 views
I need to find the integral of e^(2x)sin(3x)I used integration by parts and I let u=e^2x and dv=sin(3x) My final answer was
1. 3 answers
2. 520 views
One of my homework problems deals with finding the change in entropy of the surroundings using the equationdelta(S)=
1. 2 answers
2. 630 views
I need help in solving this problem:A certain substance has a heat of vaporization of 42.46 kJ/mol. At what Kelvin temperature
1. 3 answers
2. 605 views
I've been trying to solve the improper integral ofln(x)/sqrt(x) dx as a=1 and b=infinity I am required to solve for this
1. 3 answers
2. 527 views
There are 100 questions from an SAT test, and they are all multiple choice with possible answers of a,b,c,d,e. For each
1. 2 answers
2. 959 views
I've been working on this problem for close to an hour now and keep getting very wrong numbers... The two objects with different
1. 2 answers
2. 599 views
A hockey puck slides with an initial speed of 52.3 m/s on a large frozen lake. If the coefficient of kinetic friction between
1. 2 answers
2. 823 views
I'm really confused on how to answer this question. Can someone help me to figure this out? Thank youA survey about the student
1. 6 answers
2. 629 views
* At an accident scene on a level road, investigators measure a car's skid mark to be 58 m long. It was a rainy day and the
1. 4 answers
2. 4,533 views
Bell Mountain Vineyards is considering updating its current manual accounting system with a high-end electronic system. While
1. 1 answer
2. 420 views

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