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In a 1.0× 10–2 M solution of CH3NH3Br(aq), identify the relative molar amounts of these species.H2O, OH-, CH3NH3+, CH3NH2,
1. 1 answer
2. 1,992 views
A 40.0 ohm resistor, 20.0 ohm resistor, and a 10.0 ohm resistor are connected in series across a 220-V supply. Which resistor is
1. 1 answer
2. 1,139 views
An object is launched at 9.8 meters per second from a 73.5-meter tall platform. The object's height s (in meters) after t
1. 3 answers
2. 4,744 views
A woman bought some 13 cent stamps and some 8 cent stamps at the posg office. She spent exactly 1 dollar. How many of each stamp
1. 1 answer
2. 742 views
If sales tax in a specific county is 6.5%, what is the total price paid on a purchase of $156.00.
1. 2 answers
2. 424 views
assume that 13.5g of AL react with excess HCl according to the following balanced equation, at STP: 2Al(s) + 6HCl(aq) --->
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2. 905 views
A circuit consists of a 10 ohm resistor in series with 3 identical batteries each with an emf = 1.0V and internal resistance of
1. 2 answers
2. 1,288 views
Calculate the amount of heat required to completely convert 1kg of water at 0°C to the boiling point at 100°C?
1. 2 answers
2. 2,703 views
A hotel swimming pool measures 25 m by 9m. The hotel manager wants to put a 3m wide deck around the pool. Calculate the area of
1. 1 answer
2. 441 views
Find the length of the entire perimeter of the region inside r=5sin(theta) but outside r=1.1=5sin(theta) theta=arcsin(1/5)
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2. 1,197 views
x^2 - 81 = 0a) -square root 9 , square root 9 b) -81 , 81 c) -9 , 9 ~~ MY ANSWER ~~ d) no real solutions
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2. 389 views
If TanTheta= -65/72 and the terminal side of theta lies in Quadrant II use a pythagorean identity to find sec theta.
1. 1 answer
2. 680 views
A bullet of mass 3.9 g was fired at a stationary ball of lead. The head on impact moved the 10 kg ball at a velocity of .3703
1. 1 answer
2. 462 views
A bullet of mass 3.9 g was fired at a stationary ball of lead. The head on impact moved the 10 kg ball at a velocity of .3703
1. 1 answer
2. 1,070 views
In The Importance of Being Earnest, Jack and Algernon clearly have a preoccupation with food.Discuss how food serves as a symbol
1. 6 answers
2. 1,338 views
Could you please explain the difference between B, longer base of a trapezoid and b, base in geometry?
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2. 478 views
For 2 similar triangles ABC and DEF, the scale factor of ABC to DEF is 2:3. If AB=2(BC) and DE=3(BC), what is EF?
1. 2 answers
2. 2,241 views
Bett, Cathy, Isabel, Lani and Ursula run an 800-meter race. Betty beat Cathy by 7 meters. Alma finished 12 meters behind Lani.
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2. 548 views
A 1" x 1" 1/8" copper ingot has a density of 8.94 g/mL. 25 pellets were obtained from the ingot. Explain what would be the
1. 2 answers
2. 1,352 views
A thin metallic spherical shell of radius .5m has a total charge of 8 μC uniformly distributed on it. At the center of the
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2. 814 views
the pressure at a point below a point below the surface of the sea is caused by both the height of the water above that and the
1. 2 answers
2. 935 views
A proton is released from rest inside a region of constant, uniform electric field E1 pointing due North. 14.8 seconds after it
1. 1 answer
2. 4,341 views
Write y=-2/5x-3 in standard form using integers.2x+5y=-15 2x+y=-3 2x+5y=-3 x+y=-15
1. 5 answers
2. 1,371 views
Write each fraction as a percent rounded to the nearest percent 1/3
1. 1 answer
2. 508 views
There are 20 questions in a test. Faye answers 17 correctly.a. What fraction of questions does faye answer correctly? b. What
1. 2 answers
2. 852 views
Write < or > for each pair of numbers-6.9 is < or > -6.85 -7.02 is < or > -7.2
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2. 454 views
Work out0.14 x 0.87 0.52 x 6.57 0.36 x 5.24
1. 1 answer
2. 342 views
Round 4.389 to 2 decimal places.
1. 8 answers
2. 982 views
Write the decimals in ascending order.5.78, 5.08, 5.8, 5.287, 5.078
1. 3 answers
2. 1,015 views
A figure skater scores 74.92 in her first skate and 144.19 in her second skate. What is the total score?
1. 1 answer
2. 489 views
John has a piece of wood 2.4m lon. He cuts of a piece 0.8.4m long. How long is the remaining piece?
1. 1 answer
2. 469 views
It is 780 km from Lethbridge to Fort McLeod. One plane leaves from Lethbridge going 200 km/h. A second plane leaves from Fort
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2. 345 views
What is an equation in slope intercept form for the line that passes through the points (1,3) and (3,1)?
1. 1 answer
2. 424 views
The force on a .4 kg cannon ball in the barrel when fired at t=0 seconds is given by F= 1000- 5 * 10^4t. The acceleration of the
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2. 589 views
What is the ninth term of the arithmetic sequence defined by the ruleA(n)=-14+(n-1)(2) A)232 B)230 C)2 D)4 Thanks
1. 23 answers
2. 8,957 views
Using quotient rule find dy/dx of:y=(4+x)/(cos(x)) and find the equation of the normal to the curve y=(4+x)/(cos(x)) at the pint
1. 2 answers
2. 397 views
Solve:(2+x)(-sinx)
1. 2 answers
2. 390 views
Jake needs to catch 1 10 pound fish to last 5 days. He catches 2 3.33 pound fish, 1 2.11 pound, and 1 1 pound fish. How long
1. 3 answers
2. 554 views
A poll of 1000 registered voters reveals that 480 of the voters surveyed prefer the Democratic candidate for the presidency. At
1. 0 answers
2. 545 views
A poll of 1000 registered voters reveals that 480 of the voters surveyed prefer the Democratic candidate for the presidency. At
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2. 598 views
A golfer hits a tee shot on a 325 m long straight golf hole. The ball is hooked (hit at an angle of 18 degrees to the left. The
1. 2 answers
2. 1,870 views
A ball weighing .2 Lbs. is dropped out the window of a pickup truck (approx. 5 ft?) moving horizontally at 45mph. If e
1. 0 answers
2. 497 views
Solve the inequality:(4x+3)/(x-1) ≤ 2
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2. 468 views
What is the difference between Electro-Motive-Force and Potential-Difference?
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2. 422 views
A watch battery can supply approximately 15 C of charge before it needs to be replaced. Calculate the number of hours it will
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2. 439 views
An electrical motor has a power rating of 500 W when it is lifting a mass of 80 kg through a height of 6 m in a time of 15 s.
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2. 560 views
A boy and girl are balanced on a "massless" seesaw. The boy has a mass of 75 kg and the girl a mass of 50kg. The seesaw is 6
1. 1 answer
2. 2,185 views
The average velocity a golf ball hit with an iron is about 66.7 m/s. Calculate the maximum height and displacement of the golf
1. 1 answer
2. 526 views
what percent of 1/2 is 2/3 as mixed number
1. 5 answers
2. 397 views
What is the surface area to volume ratio of a cube with a with of 4 cm.I think its 1.5:1
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2. 1,220 views
(Simplified Water Bill Computation)The bill for a water service subscriber is prepared as follows: 1. The name of the water
1. 0 answers
2. 614 views
a manufacturer has daily production costs of C=4000-30x+0.5x where C is the total cost in dollars and x is the number of units
1. 1 answer
2. 659 views
5 basketball teams play each other once. How many games are played?
1. 11 answers
2. 4,926 views
Require memorandums for 2013 and 2014 exam question papers
1. 1 answer
2. 341 views
ComprehensionIndia elections : domination of Nehru-Gandhi dynasty under threat Possible questions and answers on the passage
1. 1 answer
2. 442 views
The intensity, I, of light passing through water can be modelled by the equation I=10^1-0.13, where x is the depth of water in
1. 1 answer
2. 948 views
A car decelerates uniformly and comes to a stop after 9 seconds. The car's average velocity during deceleration was 45 km/h.
1. 0 answers
2. 631 views
Note, this question is from the book "Ribbons", if you haven't read it then you are not able to help with this.In "Ribbons",
1. 2 answers
2. 751 views
I am doing an essay on why language is important in today's society.I have 2 main points so far: 1) it benefits an individual
1. 5 answers
2. 485 views
b. What is the probability of randomly generating a 7 from the numbers 2 to 12 inclusive?
1. 1 answer
2. 358 views
using logarithms to solve exponential equations.5^1+x = 2^1-x I need exact numbers. I did one on my own already. 5^x-1 = 9 5^x-1
1. 1 answer
2. 779 views
using logarithms to solve exponential equations.5^1+x = 2^1-x I need exact numbers. I did one on my own already. 5^x-1 = 9 5^x-1
1. 4 answers
2. 670 views
Use logarithms for these questionsAfter every 10 pages of painting, the ribbon in the dot matrix printer loses about 0.5% of its
1. 2 answers
2. 601 views
Express y as a function of x. What is the domain? Explain your answer.log4y = x + log4 Solving exponential equations with
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2. 842 views
Tate has bag of golf balls: 3 red, 5 blue, 2 yellow, and 2 green. What is the probability that he pulls out a red one, replaces
1. 1 answer
2. 517 views
What volume of “wet” methane would have to be collected at 20.0 oC and 760.0 torr to be sure the sample contained 2.00 x 102
1. 2 answers
2. 2,594 views
if 75.0 ml of 1.5m sodium hydroxide reacts with 100.0 ml of 2.0m phosphoric acid, to give sodium phosphate and water, how many
1. 1 answer
2. 576 views
The smallest identifiable unit of a compound is a(n) which is made up of which are chemically combined
1. 1 answer
2. 496 views
The stoplights on a street are designed to keep traffic moving at 34 mi/h. The average length of a street block between traffic
1. 2 answers
2. 857 views
On a drive from your home to town, you wish to average 44 mph. The distance from your home to town is 106 miles. However, at 53
1. 1 answer
2. 740 views
z2(pi)rh=2(0.064)2(pi)r + 0.064(2*pi*h)z2*pi*r^2= 0.064(2*pi*r) pi*r^2h=1567.8 Find z,r,h
1. 1 answer
2. 420 views
(xD-1)D
1. 0 answers
2. 284 views
Show that the curve with parametric equations x=tcost, y=tsint, z=t lies on the cone z^2=x^2+y^2
1. 1 answer
2. 3,381 views
4x-e^(-(4x-y+3))=-e^(-2)y=________ I have tried multiple times and cant get it. Please help
1. 1 answer
2. 345 views
e^(x-y)=-x+C where y(2)=2so I found C=3? y=_____________ so I thought it would be y=-ln(-x+3)-x but that is wrong please help!
1. 2 answers
2. 342 views
A first order linear equation in the form y′+p(x)y=f(x) can be solved by finding an integrating factor μ(x)=exp(∫p(x)dx)(1)
1. 4 answers
2. 806 views
A hollow box 10x10in with a thickness of 1in with a length of 500Would the area be (10*10) Would the volume be
1. 2 answers
2. 379 views
y′=12x^(3)sqrt(1+x^4)(1+y^2), y(0)=1⇒ y= Thanks!
1. 2 answers
2. 340 views
y′=8e^(4x)(1+y2)solve for y(0)=−2⇒ y= I tried to solve the problem and got the equation: tan^-1((2e^(4x)-2+tan(-2)))it
1. 2 answers
2. 613 views
Hi all.I need help understanding something my book dosn't go over well. For example dy/dx=-4y is a given solution and I need to
1. 2 answers
2. 595 views
Find the average value of the function f(x)= 8/ (3+x)^2 on the interval [0,2]
1. 0 answers
2. 384 views
A cable that weighs 3 lb/ft. is used to lift a golf cart which weighs 700 lbs up to the deck of a boat which is 300 ft above a
1. 0 answers
2. 543 views
The region bounded by y= e^x, y=0, x= -1 and x=1 is rotated about the x-axis, find the volume generated.
1. 0 answers
2. 433 views
Find the volume of the solid obtained by rotating the region bounded by y= x^(1/3), and y= x about the line y=1
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2. 399 views
Find the volume of the solid obtained by rotating the region bounded by y= x^2, y=0, and x=3 about the x-axis.
1. 0 answers
2. 405 views
Find the area of the region bounded by the curves y=x^2 - 2x and y= x + 4
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2. 540 views
I think it is A & C, but am not sure..In a perfectly competitive market in which no market failure occurs and no government
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2. 574 views
Juan mows lawns in his neighborhood for extra money. Suppose the demand for lawn mowing in Joe’s neighborhood is: QD = 48 –
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2. 2,327 views
Jim opens a savings account with a deposit of $10,000. If the account has an annual interest rate of 6%, compounded quarterly,
1. 1 answer
2. 584 views
Jennifer rode her bike to the store at a rate of 15 mph. She rode back home at a rate of 10 mph. How far is it to the store if
1. 4 answers
2. 1,403 views
Estimate the pressure that is exerted on the ground by an average female.In runners? and then In "high heels"?
1. 2 answers
2. 405 views
In a power plant the high pressure turbine trips due to an unauthorised valve shutdown. What area) what is the angular
1. 0 answers
2. 581 views
At the beginning of each year, Al rose invested $1,200 semiannually at 12 percent for 8 years. The cash value of the annuity due
1. 2 answers
2. 535 views
Find the angle of inclination of the equation 3x+2y+4=0
1. 1 answer
2. 427 views
The sum of a number and three times another number is 18. Find the number if their product is a maximum.
1. 7 answers
2. 6,043 views
A movie theatre has 30 rows. The first row has 26 seats and as you move to the back each additional row has one seat added. How
1. 2 answers
2. 668 views
A solid sphere, a hoop, and a solid disk. all with equal masses and radii, roll at the same translational speed along a
1. 0 answers
2. 462 views
Use the figure to answer the following questions.figure for questions 1–3 1. Name a pair of complementary angles. (1 point)
1. 4 answers
2. 2,133 views
a) Write an expression in terms of n and m for the area of the top of the solid region being drilled at the right. Use 3.14 for
1. 1 answer
2. 524 views
two small spheres lie 1.5 meters apart and carry identical charges. How large is the charge on each if a sphere experiences a
1. 2 answers
2. 828 views

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