Marc
This page lists questions and answers that were posted by visitors named Marc.
Questions
The following questions were asked by visitors named Marc.
Has anyone read the Strange Case of Dr Jekyll and Mr Hyde and/or The Time machine ?? if so,please let me know..as i have some questions thank you
18 years ago
Find all positive integers a<b<c (a is less than or equal to b, b is less than or equal to c) such that: arctan (1/a) + arctan (1/b) + arctan (1/c) = (pi/4)
18 years ago
on which line is there a spelling mistake. 1/ reported to the HSE or local authority immediately. A major injury is 2/ construction industry. About one hundred and forty are fatal. This is 3/ hospital treatment lasting more than twenty-four hours.
16 years ago
so if the equation I'm using is 3CuSO4+2AL(NO3)3 arrow 3CU(NO3)2+Al2(SO4)3 how many moles of CuSO4 would be needed to produce 8 moles of Al2(SO4)3? Would the answer be 8?
16 years ago
I need to make up ten numbers that are divisible by 2,3,4,5,6,8,and 10.
15 years ago
The company reported a 6% operating margin on sales, a 12% pretax operating return on total assets, and $500 million of average total assets. I have calculated the operating income to $60,000,000. How do I calculate the total sales and total asset turn ov...
15 years ago
A prescription calls for the 4% Pilocar with a Sig. of "gtt i OU tid". How many 15-ml bottles should be dispensed for a 90 days supply if the eye drop bottle delivers 20 drops per ml? Somehow, it is a bit confusing. I tried: 1 bottle/ml soln * ml soln/20...
15 years ago
A metal oxide reacts with water to produce a metal hydroxide. What additional information would you need to determine the percent yield of metal hydroxide from this reaction?
15 years ago
Use the given information to find the P-value. Also, use a 0.05 significance level and state the conclusion about the null hypothesis (reject the null hypothesis or fail to reject the null hypothesis). 1) Vvith H1: p * 0.733, the test statistic is z = 2.0...
15 years ago
What are subjunctive verbs in Spanish? I've learned them before but I don't understand them.
15 years ago
a rectangle with one side on the x axis and one side on the line x=2 has it upper left vertex on the graph of y=x^2, for what values of x does the area of the rectangle attain its maximum value?
14 years ago
a spherical ballon is being inflated at a constant rate of 25 cm^3/sec. At what rate in cm/sec is the radius of the ballon changing when the radius of the ballon is 2 cm? (VOLUME SPHERE FORMULA 4/3 pi r^3)
14 years ago
if x^2 + y^3 = (x^3)(y^2) then dy/dx = ? thanks
14 years ago
which of the following is an equation of the line tangent to the graph of y = (x^3)-x at the point where x =2: a) y - 6 = 4(x-2) b) y - 6 = 5(x-2) c) y - 6 = 6(x-2) d) y - 6 = 11(x-2) e) y - 6 = 12(x-2) thanks!
14 years ago
which of the following is an equation of the line tangent to the graph of y = (x^3)-x at the point where x =2: a) y - 6 = 4(x-2) b) y - 6 = 5(x-2) c) y - 6 = 6(x-2) d) y - 6 = 11(x-2) e) y - 6 = 12(x-2) thanks!
14 years ago
Samantha saved $13 by buying a used DVD. She paid $5 less than half the original price of a new one. How much did Samantha pay for a used DVD?
13 years ago
A bullet of mass m = 5.89 g is fired into a block of mass M = 3.09 kg that is initially at rest on the edge of a smooth table. (The table top is 0.83 m above the floor.) The bullet ends up stuck in the block, and together they fly off the table and fall t...
13 years ago
Please decide which of the following statements for car collisions are true or false. 1)Crumple zones on cars are parts of the front of the car that are designed to receive maximum deformation during a head-on collision. The essential safety benefit of cr...
13 years ago
A mass of 710 kg is located at the origin. A second mass, 44.0 kg, is located at the point (0.216,0.702) m. Find the magnitude of the gravitational force on the 44.0 kg mass due to the 710 kg mass at the origin. I got: 3.86×10-6 N Enter the x and y compon...
13 years ago
The annual precipitation for one city is normally distributed with a mean of 72 inches and a standard deviation of 3.5 inches. In 95% of the years, the precipitation in this city is between___ and ___
13 years ago
Does the human tongue have definite areas for certain tastes
12 years ago
Good hypothesis for does the human tongue have definite areas for certain tastes
12 years ago
A man weighs 900N on the surface of the earth. Compare his weight in an airplane flying at an elevation of 9000m. Note that the radius of Earth is 6378km.
12 years ago
Two 10 kg spheres are placed 500mm apart. Express the gravitational attraction acting on one of the spheres as a percentage to its weight on earth.
12 years ago
An electron is initially at rest in, but not on the axis of, a solenoid that is carrying a steady current I directed as shown in the cross section below. The electron is initially at rest on the -x axis. The current in the solenoid is suddenly increaed to...
11 years ago
Two numbers are such that their difference, their sum, and their product are in the ratio 1 : 4 : 15. What are the two numbers?
11 years ago
Three men, A, B and C agree to share the expense of a fishing expedition in the ratio 2:3:4. A pays $25 for the hire of the boat, B pays $70 for the meal and C pays $49 for traveling expenses. How much must A and C pay B to settle their agreed shares?
11 years ago
Solve h=2f/m+1
11 years ago
The trends in international mathematic and science study (TIMSS) in 2007 examined eighth grade proficiency in math and science. The mean mathematics scale score for the sample of eighth grade students in the US was 508.5 with a standard error of 2.83. Con...
11 years ago
on an expressway, the recommended safe distance between cars in feet is given by 0.019v^2+v+14, where v is the speed of the car in miles per hour. Find the safe distance when the following takes place( round answer to three decimal places). v=35 mph ____f...
11 years ago
Please help me and show an understanding please, so I see how to figure them out. Lee deposited $28,000 in an interest-bearing checking account that earns 3.5% interest compounded daily. Find the amount after 68 days. a.$183.16 b.$28,180.46 c.$28,183.16 d...
10 years ago
The difference of two whole numbers is 27.The greater number is 3 less than twice the smaller.What are the numbers?
10 years ago
Shoe O Rama is having a 20 % off sale this friday. Which equation below shows how to find the sale price, s, as a function of the original price, p?
10 years ago
lim ((1-2x)/(√1+x^2)-1) x→∞ Find the value.
10 years ago
The lines a and b intersect at point D. What is the value of z? z = Can you please help em solve im really stuck and confused?
9 years ago
Which words should be deleted to remove redundancy? At first, my initial reaction was to cancel my subscription to the monthly magazine because the customer service representative was so rude to me. A) At first, B) monthly magazine C) my initial reaction...
9 years ago
When He-Ping says that he wouldn't miss it for the world, he means that A) he is not sure. Eliminate B) he really wants to go. C) he thinks his mom should know. D) he does not know if he is allowed. I believe it is B.
9 years ago
Excerpt from: Norse Mythology Part D Kate McConnaughey Then Loki, the spirit of evil, will break loose from the fetters with which the gods have bound him. (31) The frost giants join him. They will try to make a secret attack on the gods. But Heimdall, th...
9 years ago
Which solution will best allow the movers to achieve their goal? A) Change the width of the ramp from 4 meters to 3 meters. B) Change the length of the ramp from 4 meters to 5 meters. C) Change the height of the ramp from 3 meters to 4 meters. D) Change t...
9 years ago
Choose the sentence that contains no comma errors. A) The book, that I borrowed from Elizabeth last week was excellent. B) About four thousand years ago, Stonehenge, was a center of worship. C) Alice Jones lived at 15, Cedar Street NE, Colorado Springs Co...
9 years ago
After the basketball game the students had a dance at the school. . How should the sentence be correctly punctuated? A) Add a comma after game. B) Add a comma after dance. Reactivate C) Change the period to a question mark. Reactivate D) Add an apostrophe...
9 years ago
While Sara was traveling in England; she met an interesting old man. . Choose the answer that is the most effective substitute for the underlined part of the sentence. If no substitute is necessary, choose ‘Leave as is.’ A) in England. She met B) in Engla...
9 years ago
How does the author arrange this passage? A) He uses dialogue in the first half to express the confusion over the phrase "Don't give up the ship." He uses a rhyming poem in the second half to explain the phrase's source. B) He uses dialogue in the first h...
9 years ago
Arrange these numbers from least to greatest: 2 over 5 comma text end text − 3 over 7 comma text end text 2 over 3. A. 2 over 5 comma text end text − 3 over 7 comma text end text 2 over 3 B. − 3 over 7 comma text end text 2 over 5 comma text end text 2 ov...
9 years ago
Determine the following limits if it exists. a. lim x-->5 (4x/x-5)
9 years ago
b.Determine the lim x-->4 (x^2+x-20/8-2x) What Im stuck on is this f(4)= 4^2+4-20 / 8-2(4) f(4)= 0/0 x^2+x-20/8-2x = (x-4)(x+5)/-2(x-4) What do I do next I'm so confused ik i would eliminate the x-4 from numerator and denominator but what would i do with...
9 years ago
Evaluate the lim a. lim x--> 64 (cube root x-4/x-64)
9 years ago
Evaluate the lim a. lim x--> 64 (cube root x-4/x-64) (∛x-4)/(x-64) -> 0/0 so then let cube root x = u u-4/u^3-64 u-4/u^3-64 = u-4/u-4(u^2+4u+16) the u-4 cancel each other out leaving lim x->64 = 1/u^2+4u+16 1/64^2+4(64)=16 oddly i find the number to large...
9 years ago
From first principles (ie using the tangent slope method), find the slope of the following curves at the given value of x. f(x)=2x^2− 6x at x = 3
9 years ago
From first principles (ie using the tangent slope method), find the slope of the following curves at the given value of x. f(x)=2x^2−6x at x = 3 f(x)=2x^2-6x f(x+h)= 2(x+h)^2-6(x+h) =2x^2+4xh+2h^2-6x-6h lim h-->0 f(x+h)-f(x)/h =2x^2+4xh+2h^2-6x-6h - (2x^2...
9 years ago
what is the circumference of a circle with a diameter of 50 mm
9 years ago
The dissolution of ammonium nitrate in water changes the temperature of water from 21C to - 1C(ice). If the molar enthalpy of ammonium nitrate is 25.7kj/mol. Determine the mass of ammonium nitrate that was dissolved
9 years ago
A plane flies at a speed of 150mph at an angle of 10 degrees, after 6 seconds, the plane keeps the same speed but changes to an angle 18 degrees. How long in minutes would it take the plane to travel to a cruising altitude of 30,000 feet?
9 years ago
Suppose you have a coin that lands on Heads with probability 0.6 There are three coin flips defined as X. Heads count 1 and tails count 0 – e.g., if three heads then X= 3; if a head and two tails then X = 1; if three tails the X = 0. What is the expected...
9 years ago
Determine the mass of the earth from the known period and the distance of the moon
8 years ago
Mrs. Beck paid a total of $34 for 4 identical bowls and 2 identical plates. A bowl cost $4 more than a plate. How much did she pay for each bowl?
8 years ago
Design the pseudocode for a program that outputs numbers in reverse order from 10 down to 1 using a loop?
8 years ago
Design a Visual Logic flowchart for a program that prompts the user to enter ten numbers one at a time. After the user has entered all ten number the program will then print out the total of those ten number and quit? In Visual Logic use console I/O?
8 years ago
Design the pseudocode for a program that allows a user to enter 10 numbers, then displays them in the reverse order of their entry
8 years ago
Design the logic for a program that allows a user to enter 10 numbers, then displays each and its difference from the numeric average of the numbers
8 years ago
If Micheal Jordan when standing with his arms straight up in the air, is 7 feet 8 inches tall ; how many inches would he have to jump to touch the basketball rim that is 10 feet high above the floor?
5 years ago
round 91.57608767 to the nearest tenth of a gram
4 years ago
Evaluate the collisions does a single Ar atom make in 1.0 s when the temperature is 25 C and the pressure is 1.0 atm.
4 years ago
Which expression is equivalent to the algebraic expression 3(2t+3)?
3 years ago
Which expression is equivalent to (2 2/3) 6/4
3 years ago
What volume of 0.100 M sodium hydroxide is required to completely neutralize 50.0 mL of 0.100 M phosphoric acid?
1 year ago
What is the molarity of a NaOH solution if 21.93 mL of base is required to titrate 0.243g of oxalic acid?
1 year ago
35.0 of 0.150 M lead 2 nitrate and excess amount of potassium chloride are mixed. How much precipitate is produced?
1 year ago
What mass of hydrogen gas will be formed when 125 ml of 0.500 M hydrochloric acid is reacted according to the following equation: Mg(s)+2HCl(aq) =H2(g)+MgCl2(aq)
1 year ago
Answers
The following answers were posted by visitors named Marc.
ITS THE ZUMDHAL BOOK!
17 years ago
I need to make up ten numbers that are divisible by 2,3,4,5,6,8,9,10. Please help.
15 years ago
Set the problem like this: 59 + x + x / 3 (because it's total 3 tests)) Set the above equal to 69 (your desired result) SO: 2x + 59 = 207 (which is 69 * 3) 2x = 207 - 59 2x = 148 x = 74 She used to scores of 74 to get a mean of 69. Hope this helps!
15 years ago
FYI You can check the final answer like so: 59 + 74 + 74/3 You should get an answer of 69! Voila!
15 years ago
Thanks! And can you calculate the percent yield if they don't give the actual yield?
15 years ago
K thanks
15 years ago
The Third Root of 3 = 3^1/3 The square root of nine= 3^2 3^1/3 x 3^2= 3^2 1/3
15 years ago
thanks!
15 years ago
actually for the second part, it wouldn't be a cylinder but a sphere. thus beta = 2/5. the velocity equation in this case would be V = sqrt[(2gH)/(1+beta)]
14 years ago
1. The giant monster attacked the warehouse, yesterday morning the warehouse was making sneakers.
14 years ago
ok..so for c: v = w*r = 168.2*0.343m =57.6926 and therefore for a: w = v/r = 57.6926/0.139m = 415.055 is that correct? and for the acceleration: for a: a= 5.7*0.139 = 0.7923 and for c: 0.7923/0.343 = 2.3099 but how do I get time ??
13 years ago
I meant 3.86*10^-6 N
13 years ago
my answer is 4.7527 hr. it is solved by this format: time = [(0.10825-0.04175)/((0.75)(1/96485)(1/2))]/[3600] time = 4.7527 hr Note: for the dimensional analysis, (mol)/(C/s)(mol/C)=s (divide by 3600 to convert to 1 hr) hope it helps.
12 years ago
simply put, (0.75 C/s)(time)(1 mole e-/96485 C)(1 mole Cu/2 mole e-) = (0.10825-0.04175) time = 17,110.07 s = 4.7527 hr
12 years ago
its A
11 years ago
0.001 V
11 years ago
. Your topic is courtesy, and you're writing from the point of view of a caring mentor. Which of the following sentences is most persuasive for an audience of high school graduates from a working-class neighborhood? A. Courtesy to others shows self-respec...
11 years ago
let time taken until they meet be t hrs distance covered by first train = 115t miles distance covered by 2nd train = 105t miles 115t+ 105t = 1200 220t = 1200 t = 5.454545.. hrs or 5hrs and .4545..*60 min = 5hrs and appr 27 minutes
10 years ago
The answer is (D), "We have met them on previous occasions."
10 years ago
You times each number by .25.. 2 Quarts? 2 x 0.25 Why 0.25? 1/4 = 0.25
9 years ago
9.9 = v^2/r 9.9 * 100 = v^2 v = 99.5 m/s Time for revolution = 2 pi r/v = 2 pi * 100/99.5 = 6.31 seconds = .105 minutes 1/.105 = 9.5 revs/minute
9 years ago
i cant post a picture?
9 years ago
I believe it is A
9 years ago
Fred was talking to his sister one day. He said,-- "Alice, what makes people say, 'Don't give up the ship'?" Alice said, "I don't know. That's what the teacher said to me yesterday when I thought that I could not get my lesson." "Yes," said Fred, "and tha...
9 years ago
1587 x 8000 = 12696000
9 years ago
Reiny, want to help on my 2nd question I did the some of the work but I'm stuck on the last step and need guidance
9 years ago
Ok thanks that helped a lot!
9 years ago
so basically to get the negative 1 i just divide -4/4 correct?
9 years ago
Sorry meant for title to be part 3 not part 2
9 years ago
Shouldn't i let cube root of x equal u and then factor it out like this u-4/u^3-64
9 years ago
* 1/64^2+4(64)+16
9 years ago
Ok thanks for the help,it helped a lot!!!
9 years ago
would the lim approaches 64 is it 1/48 or is it when the lim approaches 4 is 1/48
9 years ago
Are you sure? Someone told me I'm doing this wrong
9 years ago
f(3) = 2(9) - 6(3) = 0 f(3+h) = 2(3+h)^2 - 6(3+h) = 2(9 + 6h + h^2 - 18 - 6h = 2h^2 + 6h slope = lim (f(3+h) - f(3) )/h , as h--->0 = lim(2h^2 + 6h - 0)/h = lim h(2h + 6)/h = lim 2h + 6 , as h ---> 0 = 6
9 years ago
#3 --> 16, because you can rotate it by rotations of multiples of 60, in addition, you could also flip the snowflake along the axes of rotational symmetry #4 --> 12, same reasoning as before
9 years ago
ARE THEY RIGHT??
9 years ago
please someone post the answers please i need this
9 years ago
11.8
8 years ago
Oops answer is 9 gallons
8 years ago
i did the test and the math the answer is 1.5
8 years ago
(42+10)+(s+10)+(d+10)=100 72+s+d=100 s+d=28 d=3s so you can plug it in s+3s=28 4s=28 s=7 d=22
8 years ago
d=21* sry
8 years ago
1.25:1??
8 years ago
ghUUUG
8 years ago
No clues
7 years ago
1A 2A 3B
7 years ago
Thank you, all. :)
7 years ago
3/10 is the answer
4 years ago
it is an act of not taking your clients information for granted
4 years ago
From the molar mass of K & CL.
3 years ago
wow just wow......
3 years ago
Hi, Marc here with Maximum Markeitng! I'm Volunteering some time with local business and helping them online. I noticed a few issues with your website, happy to send them over and fix them for you. Want me to send a free report? You can reply back or text...
3 years ago