Questions and answers by

Kate

Questions (981)

ok now this is an algebra 2 problem... I have goten far down to heare^(ix) = (4i +/- 3)/5 now how do I solve for x I feel really
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how do I solve thisarcsin(4/5) note that I am not looking for about 53 degrees I believe I'm suppose to solve euler's formula
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how do I find the length and width of a rectangle when the width of the rectangle is 3 feet less tahn the length. The area is
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2. 463 views
Is you teacher who teaches AP Biology still sick last time I heard I was told he was to sick to even come on here is he back
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h t t p : / / w w w . j i s k h a . c o m / d i s p l a y . c g i ? i d = 1 2 7 8 2 7 9 5 7 9It's a webadress cant post links
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h t t p : / / w w w . j i s k h a . c o m / d i s p l a y . c g i ? i d = 1 2 7 8 2 7 9 5 7 9
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I think my questions were skipped over ignore this post if this is not so...h t t p : / / w w w . j i s k h a . c o m / d i s p
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Questions 109-111 refer to the map below of the distribution of several populations on the continents of Eurasia and North
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Iwas woudnering if you could help me with this problem. The answer key says that the answer is D and I have no idea why. The
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Thanks for the help earlierMy question Silicon tetrachloride (SiCl4) can be prepared by heating Si in chlorine gas: Si + 2Cl2
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I know mathematically I can write chemical reactions this way but in chemistry can I if now why?2K + 2(H20) yields 2KOH + H2 2(K
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I have realized I don't understand Avagado's number at allMy book shows me this diagram instead of just providing a simple
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2. 730 views
What is wrong with or ambiguous about the phrase "four molecules of NaCl"I really don't understand my textbook says in the back
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2. 4,095 views
I got a question that comes from the 1990 released test #61 that I'm completley lost on61. In a population that is in
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2. 473 views
I got a question that comes from the 1990 released test #61 that I'm completley lost on61. In a population that is in
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2. 465 views
I feel really dumb because I cant figuer out this simple algebra I problem...84. The diameter of a copper (Cu) atom is roughly
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2. 980 views
I got a question that comes from the 1990 released test #61 that I'm completley lost on61. In a population that is in
1. 1 answer
2. 491 views
What is the pH of a 0.42 M NH4NO3 aqueous solution?What is the percent ionization?
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2. 536 views
What is the pH?1.6 x 10^(-5)?
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Is this correct? If not can you please tell me what steps I did wrong? Thanks!The hydrogen ion concentration of milk is about
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I'm kind of rusty on my calc here...ok ther's a graph of velocity vs time w/ velocity in m/s and time in seconds were time is of
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The hydrogen ion concentration of milk is about 1.6*10^-7 moles per liter. Find the pH.
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2. 932 views
How to prove this(e^(2^-1 i3pi) - e^-(2^-1 i3pi))/(2i) = -1 if you could show me this that would be really great btw e is eulers
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2. 357 views
a rectangle table is five times as long as it is wide if the area is 245 feet ^2 find the length and width of the table
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2. 1,239 views
Magnesium fluoride dissolves in water to the extent of 8.0 10-2 g/L at 25°C. Calculate the solubility of MgF2(s) in moles per
1. 2 answers
2. 596 views
Write an equation of the line satisfyingg the given conditions.Slope = -2/3; y-intercept of 2
1. 2 answers
2. 494 views
4cos(x)+5=6sec(x)
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2. 435 views
Determine whether the lines are parallel, perpendicular, or neither.y = 9x + 9 and y = -9x + 9
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2. 957 views
Write an equation of the line satisfying the given conditions. Horizontal line through (-2, -5)
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2. 2,117 views
well yay thanks for the answer but i really need the formula lol I tried to derive it on my own but it was a little bit rough
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2. 585 views
Hi im unsure how do this problem becasue I do not how to go about these types of problems were you make monthely payments each
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2. 921 views
Hi im unsure how do this problem becasue I do not how to go about these types of problems were you make monthely payments each
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2. 348 views
Still need help please post in this one that way i don't have to search through the old stuffh t t p : / / w w w . j i s k h a .
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2. 357 views
please still stuckh t t p : / / w w w . j i s k h a . c o m / d i s p l a y . c g i ? i d = 1 2 7 2 3 2 6 8 8 0
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Hi i don't know how to do this problemsolve for n^3 given that log(40 SQRT(3))/log(4n) = log(45)/log(3n) Thanks i'm copletely
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question skipped again please post response in this one so that way I don't have to search for old postsh t t p : / / w w w . j
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please post response in this forum so i don't have to search for the old one u skipped this question still need helph t t p : /
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Hi im unsure how do this problem becasue I do not how to go about these types of problems were you make monthely payments each
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2. 342 views
How can a technology manager help their company to grow?
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2. 334 views
How many moles of acid were present in 50 ml or 1.0M HCl?How many moles of water were produced in this reaction?
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2. 544 views
I think it was skiped can you post resposne in this questionh t t p : / / w w w . j i s k h a . c o m / d i s p l a y . c g i ?
1. 1 answer
2. 322 views
[b]1. The problem statement, all variables and given/known data[/b]The average growth rate of the population of a certain city
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2. 959 views
How would you say: next month on April 14th I am going with my parents on vacation to Hawaii.In katakana and hirgana only
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2. 315 views
Just trying to understand this. Please let me know if I did these right. Thanks!!!-7 as a rational # = -7/10 -3.03 as a rational
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2. 518 views
A die that is fair will have each face of the die come up one-sixth of the time in the long run. The population for die throwing
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2. 825 views
A student group claims that first-year students at a university must study 2.5 hours (150 minutes) per night during the school
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A person walks 24.0° north of east for 2.80 km. How far would another person walk due north and due east to arrive at the same
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2. 461 views
I'm unsure how to even start this problemSolve for x: Arctan( -4/5 ) + Arcos (2/SQRT(5) ) = Arctan(x)
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2. 539 views
I was told in class to find a piece of "biased writing" and use the knowledge about critical thinking. how would i know whether
1. 6 answers
2. 780 views
21. A heat engine operates in a cycle between temperatures 700 K and 400 K. The heat input to the engine during each cycle is
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2. 2,099 views
suppose the temperature is -12 degrees F and rises 4 degrees every hour for 3 hours. What will the temp b then?Can you please
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2. 483 views
How do I start?Problem: A helium nucleus (m= 6.65 x 10^-27 kg and q = 2e)is initially at rest. It is accelerated through a
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2. 587 views
So I have a question about magnetism.A charged particle moves through a region of space and experiences no magnetic force. Does
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2. 1,095 views
Bromine can be added to limonene to create a brominated compound.When 613 mg of limonene and 3.5 mL of a 10% (v/v) solution of
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h t t p : / / i m g 7 1 5 . i m a g e s h a c k . u s / i m g 7 1 5 / 2 7 6 9 / c a p t u r e q u . j p gI need help with c. for
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Makes complete sense thank you so much!!!My only question is how come we respect domains only sometimes... For example now
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I have no idea how to do these type of problems.-------Problem-------- Solve each equation on the interval 0 less than or equal
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h t t p : / / i m g 2 0 5 . i m a g e s h a c k . u s / i / c a p t u r e b b . j p g /i am stuck on part c how do i find work
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2. 497 views
Suppose an investment of $500 doubles in value every 15 years. How much is the investment worth after 30 years? After 45 years?p
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2. 3,711 views
h t t p : / / w w w . j i s k h a . c o m / d i s p l a y . c g i ? i d = 1 2 6 7 3 9 3 5 9 3ok heres the problem in a picture h
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2. 599 views
Three blocks of masses 1.0, 2.0, and 4.0 kilograms are connected by massless strings, one of which passes over a frictionless
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2. 4,740 views
Upon what measurement is the Earth's latitude and longitude system based?
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2. 1,283 views
the value, v, of a shopkeeper's inventory software program is given by v = 1/2t + 6, where t is the number of years since the
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2. 1,095 views
why did the nuclei enriched fraction appear in the centrifuge fraction spun at the slower speed? Why didn't this fraction
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2. 417 views
This chart shows the components of nominal GDP for the years 2000 and 2001. All figures are in billions of current dollars.-----
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2. 1,539 views
I hope that the back of the book is wrong the back of the book tells me that the answer is - SQRT(5)/5I get positive square
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2. 494 views
You have 20 and 80 (unit is the upside down U) resistors in a circuit with a 100 V battery.A)These resistors are parallel. Find
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2. 736 views
The power dissipated by a light bulb increases by 50 W when the potential difference applied across the light bulb increases
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2. 722 views
How do I solve this problem:A particular wire has a current of 10A. A) How many electrons pass a fixed point every 5 seconds?
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2. 1,546 views
Hi I need some assistance on this problemfind the exact value do not use a calculator cot[(-5pi)/12] Here is my attempt RT =
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Please post your response in this questionhere is my original question that didn't get answered. h t t p : / / w w w . j i s k h
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I don't mind you showing me the caluclator key strokes to do thisor show me the mathematical way whice ever thanks Here is a
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were did this come from this is a momentum problemAfter some messey algebra it can be said that V_B = (2 m_A V_o_A)/(m_A + m_B)
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2. 437 views
A mass on the end of a spring is stretched a distance Xo from equilibrium and released. At what distance form equilbrium will it
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2. 2,429 views
ok i'm putting in physics it'll most likely change it watchA fisherman's scale stretches 2.8 cm when a 3.7-kg fish hangs from
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A fisherman's scale stretches 2.8 cm when a 3.7-kg fish hangs from it. (a) What is the spring constant? (b) What will be the
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2. 1,191 views
A fisherman's scale stretches 2.8 cm when a 3.7-kg fish hangs from it. (a) What is the spring constant? (b) What will be the
1. 4 answers
2. 1,012 views
post answer in this question so that way i don't have to searchh t t p : / / w w w . j i s k h a . c o m / d i s p l a y . c g i
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Find the other endpoint of a line segment with the given midpoint and one endpoint.Endpoint: ( 6, -1); Midpoint:(15/2,2
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Can someone help me with this question. I thought it was quadratic but now I am not sure. State whether the equation represents
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I do not see how to do this problemOne car has twice the mass of a second car, but only half a smuch kinetic energy. when both
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2. 508 views
what is the key sequence you would use on your calculator to solve 4x - 17 = 83
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Is this relationship linear? Tell how you decided. Write the equation for each linear relationship.X 1, 2, 5, 8, 10, 11 Y 1.5,
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how would I write an equation for the following linear relationships:(x5,y20),(x10,y30)(x15,y40)(x20,y50)(x25,y50)(x30,y50)
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The Political Noise Problem. The amount of backgroundnoise is important to television news reporters. One station developed the
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The Political Noise Problem. The amount of backgroundnoise is important to television news reporters. One station developed the
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2. 542 views
how would I write an equation for the following linear relationships:(x5,y20),(x10,y30)(x15,y40)(x20,y50)(x25,y50)(x30,y50)
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2. 369 views
If I wanted to rightSIGMA F = ma in the proper notation what would I put above and below SIGMA Would I put a lower case "n"
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If I wanted to rightSIGMA F = ma in the proper notation what would I put above and below SIGMA Would I put a lower case "n"
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2. 857 views
Hello,Thanks for all of the help guys. I really appreciate it. I was woudnering if you could show me how to do this step by step
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Factor completely2(3x - 5)3(2x + 1)^3 + (3x - 5)^2 (3)(2x + 1)^2 (2) I'm not really sure how to do this problem I started out by
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2. 438 views
[b]1. The problem statement, all variables and given/known data[/b]A 90 N sign hangs on the end of a 55 N beam supported by a
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2. 957 views
Satna has delivered gifts to the good Atlatean children. Now his erindeer need to lift him out of the ocean. The density of
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2. 451 views
Driving his sled in the dark, Santa(s) collides with a polar bear (b).After some messy algebra, it can be shown that: Vb = (2 ms
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2. 523 views
I believe I've done this rightA penguin sildes 1.5 m/s across the ice on her belly. The coefficient of kinetic friction is .02
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2. 438 views
i've been asked to ifnd the price-earning ratio of some stocksi'm unsure of how to do this I do not know which EPS value to use
1. 2 answers
2. 652 views
h t t p : / / w w w . j i s k h a . c o m / d i s p l a y . c g i ? i d = 1 2 6 2 5 5 3 0 8 2
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2. 312 views
ok so i'm kinda sort of confused...I had this for a equation X^2 + 4X - 1 = 0 and then I was like zero??? zero... really zero...
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I haven't done factoring in agesI'm trying to factor this X^2 - 2X + 8 If i remeber correctly sense the leading coefficent is 1
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2. 535 views
what is the difference between an equal sign with another line above it and an equal sign with a triangle above it.I was alway
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2. 579 views