jack
This page lists questions and answers that were posted by visitors named jack.
Questions
The following questions were asked by visitors named jack.
The roots of the equation x^4 - 3x^2 + 5x - 2 = 0 are a, b, c, d. By the relation y=x^2, or otherwise, show that a^2, b^2, c^2, d^2 are the roots of the equation y^4 - 6y^3 + 5y^2 - 13y + 4 = 0. The 2nd part of the question asks: find the value of s~2 whe...
19 years ago
what is a mineral? noun: solid homogeneous inorganic substances occurring in nature having a definite chemical composition
18 years ago
what is 23 divded by 12? it is 1 remainder 11 23/12, which equals 1 11/12
18 years ago
name atleast 4 countries that posses islands in the caribbean sea? http://en.wikipedia.org/wiki/Caribbean#Present-day_island_territories_of_the_Caribbean Srroll down to list below map that says "Present-day island territories of the Caribbean"
18 years ago
can you help me unscramble these? surtidbed,rolnesouc,retsetni Two of these are in this site. Type the scrambled letters and the real words will show. http://www.unscramble.net/
18 years ago
ANTONIO SAID, "TO SOLVE 506-288, I CAN THINK OF 5 HUNDREDS AS 50 TENS." HOW MIGHT THIS HELP HIM SUBTRACT? I doubt if it would help. The logic is this. Take away 28 tens from 50 tens. that leaves 22. Now you have 226 -8 which is 218
18 years ago
which is not a way that the canadian government attempts to cooperate with french canadians? This looks like a multiple choice question. If so, please post the choices and indicate your answer.
18 years ago
La decisión más grande de mi vida que he tenido que hacer, me fue dada en la Escuela secundaria, estaba en mis tres ano y jugue a cautro anos en el equipo fútbol del varsity. En el comienzo de la temporada, sabía que iba a hacer una cantidad increíble de...
18 years ago
I have to make a buisness. For example If i have open up Video game store just like gamestop. What can i put in my essay. Others may have additional ideas for you, but it sounds to me as if you need to write up a business plan, and then maybe write an ess...
18 years ago
finding the worth of the unit fraction will help you to solve each problem below. 1. if 4/5 of a number is 16, what is 1/5 of the number? 4/5 * x= 16 divide both sides by 4 1/5 x = 4 One fifth of the number is ...four.
18 years ago
how is my school jummper made. how does it from being a cotto seed to becoming a jumper
18 years ago
what type of tissue is blood?
18 years ago
what might happen is food passes to slowly through the colon?
18 years ago
solve the equation 3=4tan(2x+Pi/6) for x
18 years ago
Yvonne drove 11/2 hours to get to the airport. She arrived at 12.10A.M What time did she leave for the airport? Should she have lunch at the airport? why?
18 years ago
What is an isolecithal egg
18 years ago
what is the hollow ball of cells formed during cleavage?
18 years ago
5x+6x-2=10 show the work
17 years ago
what is 9ft - 7inches
17 years ago
Can anyone describe what this question means... Describe the big idea of in energy transfer in The Greenhouse effect
17 years ago
im writing a research paper on the easy company of wwii. well i have some info but my teacher said i have to make it controversial. any ideas on how i could do that. if so please get back to me
17 years ago
what were 3 groups of people that were effected by the proclamation of 1763
17 years ago
A formula for the volume of a sphere is V=4/3 pie r^2. If the radius is 6c^2d^3, what is the volume of the sphere? a. 288 pie c^6d^9 b. 288 pie c^5d^6 c. 8 pie c^2d^9 d. 216 pie c^6d^9 If you could explain this to me.thanks and how do you find x int of a...
17 years ago
Use a graph to solve each system of equations. 3.4x = 6.3y = 4.4 2.1x + 3.7y = 3.1
17 years ago
Hey, im a little confused with this question: 2^n x 4^(n+1) / 8^(n-2) I have to change all bases to 2 then simplify fully. Thanks everoyne.
17 years ago
For the reaction: PCl3(g) + Cl2(g) --> PCl5(g) at 85 degreeC, Kp = 1.19 If one starts with 2.00 atm pressure of PCl3, 1.00 atm pressure of Cl2 and no PCl5, what is the partial pressure of PCl5(g) at equilibrium?
17 years ago
Among 4 choice, which is have most concentration of nitrites ? (reason to causing blue baby syndrome) A. A brand new subdivision of high-priced “McMansions,” complete with golf course, tennis courts and swimming pool. B. A textile plant that produces Brav...
17 years ago
solve the simlutaneous equation: x^2= 4-y x= y+2
17 years ago
can someone help em find a graph showing current abuses or deaths of tranquilizers or barbiturates (depressants)
17 years ago
I want to say In the afterjnoon, I .... is it De l'apres-midi, je....?
17 years ago
edit the sentence to correct pronoun reference. many people believe that the polygraph test is highly reliable if you employ a licensed examiner.
17 years ago
I've got to design a poster with the main elements of music on, any ideas.
17 years ago
I have to make some replica artifact (medieval model) eg med map, peasants hut,med village or something along those lines, whats easy and how do I do it, PLEASE....
17 years ago
unscramble WRONTH to make a verb
16 years ago
differentiate y = (x + 2) / (x^3 + x - 2)
16 years ago
Washer Method: y=x^3, y=1 ,x=2 aroud the Y axis
16 years ago
okay i have 6 things 2 look 4 to c if a chem reaction 'goes' they r -ppt -color change -change in heat -gas released -light given off -water formes what is the 7th 1?
16 years ago
the person who holds a life estate in real property can sell absolute ownership or pass it on to his heirs. true or false
16 years ago
true or false A grantor of a life estate in real property maintains a reversion estate.
16 years ago
evaluate the indefinite interval: x sec^(2)(9x) dx i know u=x du=dx dv=sec^(2)(9x) and v = 1/9tan9x....but i don't know where to go from there much help is appreciated
16 years ago
If all requirments of a negotiable instrument have been met except delivery. can/should payment depend solely on delivery? If so/not why?
16 years ago
one o the larger problems in doing business over the web is assuring electronic signatures. What are a few ways e-signatures might be more reliably authenticated?
16 years ago
3 4 7 8 9 find the product of the smallest number
16 years ago
what is the derivative of 2^x? I know that it's something with ln but I can't find it in my notes
16 years ago
find the interval of convergence of the sum of ((x^1/2)/2 - 1)^k from k = 0 to infinity and within this interval find the sum of the series as a function of x. I know the interval is 0 < x < 16 but how do I get the sum?
16 years ago
A projectile of mass m moves to the right with a speed vi. The projectile strikes and sticks to the end of a stationary rod of mass M, of length d, that is pivoted about a frictionless axle through its center. (a) Find the angular speed of the system righ...
16 years ago
explain how evalution and management e/m codes are grouped
16 years ago
How do you set this up as an equation? There is a total of 1600 cups and bowls. cups cost 1.90 and bowls cost 2.85. how many of each do you have if the bill was 3430.00. and that includes 105.00 saucer.
16 years ago
Moon - 240000 mi Jupiter - 391000000. The space vehicle would take how many days to reach Jupiter? Saturday,
16 years ago
what are a list of Adverbs
16 years ago
how to rewrite the expression using the inverse operation?
16 years ago
Do you think it would have been possible to know that living things are made up of cells without microscopes? Explain your thinking.
16 years ago
How do you figure out the space and volume ratio cube
15 years ago
I'm writing an essay about a book I read, and I need to make a personal connection with a character that is conceited, brave, and strong. Could someone give some examples of personal connections?
15 years ago
answer.a car of mass 2000kg,increases its velocity from 10to 40 m\sec in time interval of 2 sec. calclate the force?
15 years ago
A worker exerts a 140 N horizontal force on a 41 kg crate. The crate's acceleration across a level floor is 0.90 m/s2. Find the frictional force that the floor exerts on the crate.
15 years ago
please could someone help me answer this question - can science prove that God does exist? thankyou
15 years ago
wagons retail for $49.97. stores receive the wagons with a 40% profit margin. what is the cost?
15 years ago
If jack does home improvment and price the material ,add 1 and 1/2 times that amount for labor and then quotes the job. If he gets the job for 17,000 how much is the material? and labor ?
15 years ago
I can buy office supplies @ walmart with a 30/10 chain discount. If I paid $47.25 for adding machine. What was the regular price of my purchase?
15 years ago
I can buy office supplies @ walmart with a 30/10 chain discount. If I paid $47.25 for adding machine. What was the regular price of my purchase? 30/10 chain discount means .70 x .90
15 years ago
a wagon retails for 49.97 the store receives a built in 40% profit margin what is the cost
15 years ago
If I gross 2645.00 and taxed 31% how much do I bring home?
15 years ago
The sweater shop projected income this year will be 69,000. That amount represents 40% of the shops annual sales. What is the shops projected sales
15 years ago
DQ sells 6 times as many orders of french fries as sonic everyday. If both sold 60 more orders DQ would only sell 3 times as many fries. How many do each sell before and after the incease?
15 years ago
The vapor pressure of dichloromethane, CH_2Cl_2, at 0 degrees celcius is 134 mmHg. The normal boiling point of dichloromethane is 40 degrees celcius. Calculate its molar heat of vaporization (in kJ/mol).
15 years ago
a trianglar course for a sailing race is marked off by buoys. The first lef is 250 meters longer than the second and the third leg is 100 meters shorter then the first. if the length of the course is 2500 meters, find the length of each length
15 years ago
i have 78% in the course the exam is worth 30% and i got 65% what is my overall mark in the course
15 years ago
i have 78% in the course the exam is worth 30% and i got 65% what is my overall mark in the course
15 years ago
how do you work equation dealing friction and newtons when pulling the distance of a block
15 years ago
if you put honey,water,dishwashing liquid and vegetable oil in a clear jar and then you add asmall of plastic cup, plastic fork, straw and a small piece of styrofoam cup.
15 years ago
okay after the diver jumps foward from the diving board,the force of gravity will accelerate the diver PARALLEL to the direction of motion , is the uppercase true or false?
15 years ago
Given the following finite sum 1/(1*2)+1/(2*3)+1/(3*4)+1/(4*5)+....+1/(n(n+1)) a) Find the first 5 partial sums b) Make a conjecture for a formula for the sum of the first n terms c) Use mathematical induction to prove your formula
15 years ago
A harmonic oscillator has mass 0.530km and an ideal spring with force constant 146N/m . Find the period, frequency, and angular frequency.
15 years ago
I have to hand in an assignment called WHO AM I? for my grade 10 career studies course, i just need to no what to hand in exactly
15 years ago
pg 142 What happened to the computer programer
15 years ago
An elevator cab in the New York Marriott Marquis has a mass of 4.96 x 103 kg and can carry a maximum load of 1.80 x 103 kg. If the cab is moving upward at full load at 3.71 m/s, what power is required of the force moving the cab to maintain that speed?
15 years ago
A ball is rolled horizontally off a table with an initial speed of 4.0 m/s. A stopwatch measures the ball's trajectory time from table to the floor to be 0.34 s. What is the height of the table? (g = 9.8 m/s2 and air resistance is negligible)
15 years ago
A ball is launched from ground level at 31.8 m/s at an angle of 35° above the horizontal. How far does it go before it is at ground level again? A) 14 m B) 21 m C) 43 m D) 86 m E) 97 m
15 years ago
"A one meter board with uniform density, hangs in static equilibrium from a rope with tension T. A weight hangs from the left end of the board 0.2m away in distance. What is the mass of the board"
15 years ago
corp provides issuance of 200,000 shares of common stock. 40,000 shares were originally issued and 500 were reacquired. What is the number of shares outstanding?
15 years ago
what is the role of derrivatives in the subjects other than mathematics.
15 years ago
It took a faster runner 10 sec. longer to run a distance of 1500 m than it took a slower runner to run a distance of 1000 m.If the rate of the faster runner was 5 m/sec more than the rate of the slower runner,what was rate of each?
15 years ago
what is 2 to the first and second power? component problem
15 years ago
(a) 455 cal to joules thats 1 903.72 joules but i need to round it to 3 sig figs how do u do that?
15 years ago
An astronaut on Neptune drops a rock straight downward from a height of 0.95 m. If the acceleration of gravity on Neptune is 11.2 m/s2, what is the speed of the rock just before it lands? (m/s)
15 years ago
please help! physics doesn't click with me. thank you for your help! A 23 kg suitcase is being pulled with a constant speed by a handle that is at an angle of 25° above the horizontal. If the normal force exerted on the suitcase is 155 N, what is the forc...
15 years ago
A picture hangs on the wall suspended by two strings, with è = 61°. The tension in string 1 is 1.8 N. è is connected to string 1, and 32° is connected to string 2. (a) Is the tension in string 1 greater than, less than, or equal to the tension in string 2...
15 years ago
How do i show work for this math question. A puppet requires 3/4 yard of material. How many puppets can be made from 9 yards of material?
15 years ago
the molar mass of a newly synthesized jluorocarbon was measured in a gas microbalance, This device consists of a gkass bulb forming one end of a beam, the whole surrouned by a closed container. The beam is pivoted and the balance point is attained by rais...
15 years ago
A study conducted by the Metro Housing Agency in a midwestern city revealed the information below concerning the age distribution of renters in the city. (Round your answers to four decimal places.) Age Adult Population, % Group Who Are Renters, % 21-44 5...
15 years ago
a microscope has two of these
14 years ago
a microscope has two types of these
14 years ago
Answers
The following answers were posted by visitors named jack.
social distance and bogardus scale
18 years ago
I bet no one knows.
18 years ago
Forecasting Payments. If a firm pays its bills with a 30-day delay, what fraction of its purchases will be paid for in the current quarter? In the following quarter? What if its payment delay is 60 days?
18 years ago
thank you
17 years ago
the easy company from the 101st airborne. like the tv series band of brothers.
17 years ago
oh sorry, i didn't mean to change those formulas. thanks for the help
17 years ago
He is not only a great baseball player but also a fine pianist. a. preposition not only but also b. adjective c. correlative d. adverb
17 years ago
hell no. The jews were being persecuted for no reason. they didn't have any food, so fasting was technically normal anyway. there is no reason to fast.
17 years ago
i don't get this passage
17 years ago
and what about at night....le soir, je...? or Du soir, je...
17 years ago
hypotonic solution
17 years ago
do not do iits be a rebal
16 years ago
i do not like home work do not do it ok
16 years ago
a times a + b times b =11 and a times b =3 what does a and b equals
16 years ago
thanks! i just found it in my notes too
16 years ago
so would it be (Iw^2)/(mv^2)?
16 years ago
muscular energy is the energy that defines how strong or energised something is.
16 years ago
you are constructing a 95% confidence interval using the information: n = 50, xbar = 54.3, s = 2.1 and E = 0.65. What is the value of the middle of the interval?
16 years ago
for the health i get very good but my head alwas hrt so how do i do i don't know tell me why
15 years ago
thank you
15 years ago
an egyptian form of writing
15 years ago
they seem good to me
15 years ago
consider the reaction in which 410 grams of Ca(NO3)2 react with just the right amount of lithium metal in a single replacement reaction. 1-how many grams of lithium are required? 2- how many grams of each product can be produced?
15 years ago
tell me about the rocks band
15 years ago
sweet, thanks for the help guys, gonna win now.
15 years ago
i don't know any of these but the answers would help me to study for my final exam. does anyone know the answers?
15 years ago
But that's just .100 over .100 for the base over acid isn't it? then it would just be 6.4 X 10-5 because the log of 1 is 0?
15 years ago
I will take test now and see who is correct.
15 years ago
I will take test now and see who is correct. I just scored 100% off the answers right above my post.1-b 2-c 3- d, 4-b, 5-c, 6-b, 7-c 8-d, 9-a, 10-c, 11-d, 12-a, 13-b, 14-b, 15-c, 16-c, 17-a 18-c, 19-c, 20-c, thank you for the help!!!!:)
15 years ago
cant figure out # 1-3-6 and7- please help
15 years ago
your answers were very inaccurate and wrong. I scored 50% only, I will look up corrections and actually HELP others not hinder there studies for furthure educatio. If you don't know then try to keep to yourself from now on. Thanks
15 years ago
these are the ones I have correct 2-d,4-d, 5-d, 7-a, 8-b, 9-c, 11-c, 12-c, 14-d,18-a ant the rst were all wrong, please HELP me this class is confusing me
15 years ago
you always want to start by putting like terms together. So why don't you do that first and then its really easy from there all you have to do is follow the signs(- or +) and add or subtract
15 years ago
we know that sum means adding. So which one of your choices deals with adding?
15 years ago
yes.. good job
14 years ago
sorry, answer found. no longer need help..
14 years ago
thanks! that helped me solve the problems.
14 years ago
it is asking if you have to have your lobster cooked with butter
14 years ago
10^y=x so 10^10=x
14 years ago
3/5 change the denominator to 15 by multiplying by 3 so it is 9/15-3/15=6/15 if you reduce it is 3/5
14 years ago
my bad it is 2/5 not 3/5
14 years ago
22. C 23 a
14 years ago
thanks i solved it already
14 years ago
V=359L
14 years ago
Select the set of equations that represents the following situation: The sum of two numbers is 38, and their difference is twenty-six more than the smaller number. What are the two numbers?
14 years ago
hi thanks but these sites are not answering my questions.
14 years ago
lol "Kamilah" you truly are an idiot... sorry i felt utterly compelled to say it.
14 years ago
I need to know what the correct anwser is a or b or c or d
14 years ago
15=2(9+4)+3
14 years ago
550*74+4.6*2.3
14 years ago
find the variable and LN if M is between L and N LM=8a,MN= 7a,LM=56
14 years ago
270
13 years ago
a * b = 30 .....1 a - b = 7 ..... 2 a = 7 + b ......3 (7+b)(b)=30 b^2+7b-30=0 (using quadratic formula) b = -10 or b = 3 a = -3 or a = 10
13 years ago
I used a program to draw a circle inside a triangle using height = 3 radius and it was fit !
13 years ago
+ h^20 Explanation : [(x)^a]^b = (x)^(a)(b) = (x)^ab But Be Careful when it's like [ (x)^(1/2) ] ^2 where (^1/2) is the square root and you can't put a negative value under a square root
13 years ago
Addition But When it's [ (x)^2 ] ^1/2 you can put a negative value under the square in this case besides that you change the powers ex : (-8)^2/3 that means [ (-8)^2 ] ^1/3 and you can write it as [ (-8)^1/3 ] ^2 * for (^1/3) you can put a negative value...
13 years ago
any constant 1 , 0 , 2 , pi , square root its derivative = 0 so dy/dx x^2+y^2= sqrt(5) 2 x x' + 2 y y' = 0 [x' = 1] 2x + 2yy'=0 ] /2 x + yy' = 0 y' = - x/y
13 years ago
1) you find y' (dy/dx) (f'(x)) 2) replace each x by a which equal to one f(x) = (x+1)^1/2 f'(x) = 1/2 (x+1)^-1/2 (1) f'(x) = 1 / 2(x+1) f'(0) = 1/ 2(0+1) = 1/2 = 0.5
13 years ago
((x-2)(x+2) / (x-2) ] / (x-2) int x+2 = 1/2 x^2 + 2x + c
13 years ago
f'(x) = 6x - 5 / 2 sqrt(3x^2-5x+7) f'(2) = 12 - 5 / 2 sqrt ( 12-10+7) = 7 / 2 sqrt (9) = 7/ 2*3 = 7/6 = 1.16666
13 years ago
i think you mean x^2 - 7x - 8 = (x-8)(x+1)
13 years ago
1-write wrote written 2-knight knob knit 3-listen wrestler whistle 4-thump comp plumber 5-gnaw 6-wreath 7-doorknob 8-plumber 9-knash 10-thimble 11-whistle 12-starled 13-crumb 14-wrinkle 15-knock
13 years ago
i don't #5
13 years ago
i just wanted to know how did you do # 9 because in the word their no SM word is only wr,kn,st,mb,and gn their no word like SM so please check again and i make (#9 GNASH) i just want to which i did it right or not rest of all correct yes or no
13 years ago
Ms. Sue help me last night and then i write again something then nobody help me
13 years ago
my uncle said 85 meter come in answer
13 years ago
thank you very much
13 years ago
i don't this answer please help
13 years ago
2- A ruler a yardstick and a measuring tape are the same because they can measuring items. A rule a yardstick and measuring tape different because they can't measuring the same length. i don't know 1 answer please help me and i want to know number 2 is ri...
13 years ago
use the distributive property to write an equivalent expression for the perimiter of the trangle?
13 years ago
yo me
13 years ago
A particle is moving along the x-axis subject to the potential energy function U(x) = 1/ x + x2 + x – 1. Determine the x-component of the net force on the particle at the coordinate x = 3.57 m
13 years ago
2.5
13 years ago
I asked a question earlier: Identify and discuss 4 key actions taken by the U.S. Government between 1790 to 1820 that established long term policy in the U.S. Please help me answer this, thank you so much. and I got this response:Please note that we don't...
13 years ago
Hmmm well I certainly didn't want them to write a complex essay for me, just some a little help and some ideas. It's whatever though.
13 years ago
the sum of
13 years ago
61.0 mL of a 1.50 M solution is diluted to a volume of 258 mL. A 129-mL portion of that solution is diluted using 167 mL of water. What is the final concentration?
13 years ago
256 + 1,273
13 years ago
thanks but my instrutor don't want me to use energy to solve the problem since we havnt learn it yet, can you do it using newton's law?
13 years ago
They each brought 7 pets. hope this helps
12 years ago
thank you mary
12 years ago
prove KLM=KNM.give reasons
12 years ago
Thnak you.
12 years ago
could u check if im right: a. As in AsO43- for number its 3 arrangement is tetrahedral b. Se in SeO42- # is 2 arrangement is tetrahedral c. S in H2S # is 1 arrangement is linear
12 years ago
pls help
12 years ago
2. B 3. C
12 years ago
I'm really trying to figure this out. Is it D for number 2 and B for number 3? I know you already explained it once and if i'm wrong, any additional help would be greatly appreciated.
12 years ago
at least 47
12 years ago
38kg 4g divide by 12
12 years ago
estimate ln(e^2+0.1)-ln(e^2)
12 years ago
Potential = electric field intensity * distance 1.44=a*10 a=0.144
12 years ago
what's the sum of infinite terms?
12 years ago
thanks i have now understood the problem.............
12 years ago
apply formula v=u-gt v=0 u=14 g=10 then t=1.4s
12 years ago
yea i was thinking that too,
12 years ago
this is what you got: 70 at W10°N takes them (-98.48,+17.36) but on a coordinate grid system, wouldn't 10 degrees N of W mean 170 degrees? so shouldn't the second part be <70 cos 170, 70 sin 170> the first part is the same, but the second part is differen...
12 years ago
52 mph. but how do I show my work?
12 years ago
thanks
12 years ago
.096
11 years ago
I'm not sure if this is a correct answer, but this is my opinion: "If John F. Kennedy was in office today, he would most likely use more often since there's more technology avalible, but he would use more wisely."
11 years ago