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Questions Asked on April 7, 2013

A block starts at rest and slides down a frictionless track except for a small rough area on a horizontal section of the
1. 2 answers
2. asked by Becky
3. 9,625 views
Solve 8sin(pi/4x) = 6 for the four smallest positive solutionsGive your answers accurate to at least two decimal places, as a
1. 4 answers
2. asked by Anonymous
3. 7,934 views
If the rational function y = r(x) has the vertical asymptote x = 9, then as x→9+, either y → ____or _____
1. 2 answers
2. asked by mary
3. 5,714 views
To balance a seesaw, the distance, in feet, a person is from the fulcrum is inversely proportional to the person's weight, in
1. 5 answers
2. asked by Alice
3. 5,659 views
THE SOLUBILITY PRODUCT CONSTANT FOR BaSO4 AT 298K IS 1.1X10-1O POWER. CALCULATE THE SOLUBILITY OF BaSO4 IN MOL\L AT 298K
1. 1 answer
2. asked by JASMIN
3. 4,080 views
A 500-turn circular coil with an area of 0.050 0 m2 is mounted on a rotating frame that turns at a rate of 20.0 rad/s in the
1. 1 answer
2. asked by Muzammil
3. 3,779 views
Solve 8 sin(2 x) = 6 for the two smallest positive solutions A and B, with A < BGive your answers accurate to at least two
1. 1 answer
2. asked by anonymous
3. 3,496 views
The 9th term of an AP is 8 and the 4th term is 20. Find the first term and the common difference.
1. 2 answers
2. asked by lindsay
3. 3,334 views
A long coaxial cable consists of two concentric conductors. The inner conductor is a cylinder with radius R1, and it carries a
1. 1 answer
2. asked by abdul rahman
3. 3,280 views
Which is the strongest acid, CCl3COOH or CH2ClCOOH please explain WHY it is stronger.
1. 3 answers
2. asked by m
3. 3,162 views
Solve 5 cos(3 x) = 2 for the smallest three positive solutions.Give your answers accurate to at least two decimal places, as a
1. 1 answer
2. asked by Anonymous
3. 2,605 views
12x + 16y=1/5 & 13x + 24y =1/4,find value of x & y.
1. 1 answer
2. asked by rahul
3. 2,354 views
Find all solutions to 2 sin(theta) = sqrt(2) on the interval 0 less than or equal to theta less than 2 piGive your answers as
1. 2 answers
2. asked by anonymous
3. 2,283 views
A salesman who is on the road visiting clients thinks that on average he drives the same distance each day of the week. He keeps
1. 1 answer
2. asked by Bettie
3. 1,977 views
The question asks me to find the area of the triangle with the given vertices. (The area A of the triangle having u and v as
1. 2 answers
2. asked by Krista
3. 1,973 views
Consider the pedigree below. This pedigree represents a family with a rare genetic disease.Note two very important assumptions:
1. 3 answers
2. asked by selly
3. 1,791 views
A 63.8 N crate is pulled up a 5.22 m inclined plane by a worker at constant velocity. If the plane is inclined at an angle of 59
1. 1 answer
2. asked by need help please
3. 1,790 views
A 40m deep well with radius 3.5m is dug and the earth taken out is evenly spread to form a platform of dimensions 28m by
1. 2 answers
2. asked by Anonymous
3. 1,718 views
Lobster fishers in Maine often use spherical buoys to mark their lobster traps. Every year the buoys must be repainted. An
1. 6 answers
2. asked by Shaniqua
3. 1,674 views
(b) Is this pedigree consistent with autosomal dominant inheritance?Yes No If you chose "yes", answer questions (i) and (ii) and
1. 2 answers
2. asked by selly
3. 1,612 views
There are 50 oranges in a box 3/10 of them are rotten. How many oranges are not rotten?
1. 3 answers
2. asked by Armando
3. 1,529 views
Solve sin(x) = 0.64 on 0 less than or equal to x less than 2piThere are two solutions, A and B, with A < B Give your answers
1. 1 answer
2. asked by anonymous
3. 1,480 views
Kathy drove from Dry Creek to Cactus, a distance of 250km. She increased her speed by 10km/h for the 360km trip from Cactus to
1. 1 answer
2. asked by Andre
3. 1,467 views
Prove or disprove the following identity:cos (x+pi/6) +sin (x-pi/3) = 0
1. 1 answer
2. asked by Natalie
3. 1,360 views
3. In the figure, a runaway truck with failed brakes is moving downgrade at 107 km/h just before the driver steers the truck up
1. 0 answers
2. asked by Samira
3. 1,341 views
If a and b are positive odd integers, then prove that one of (a+b)/2 and (a-b)/2 are even or odd number. I mean in the above
1. 3 answers
2. asked by Steve
3. 1,319 views
(d) Is this pedigree consistent with sex-linked dominant inheritance?Yes No If you chose "yes", answer questions (i) and (ii)
1. 1 answer
2. asked by selly
3. 1,298 views
Find all solutions to 2 cos(theta) = - 1 on the interval 0 less than or equal to theta less than 2 piGive your answers as exact
1. 1 answer
2. asked by Anonymous
3. 1,295 views
Calculate Kp at 298 K and 490 K for the reaction NO(g) + 1/2 O2(g) = NO2(g) assuming that Delta H(g) is constant over the
1. 1 answer
2. asked by hayley
3. 1,248 views
A rectangular garden is 20 m by 25m. It is surrounded by a sidewalk. The outside perimeter of the sidewalk is 114m. What is the
1. 1 answer
2. asked by john
3. 1,202 views
A 35,000 kg locomotive is moving at a velocity of 11 m/s east. What is the magnitude of the locomotive's momentum?
1. 1 answer
2. asked by alyssa
3. 1,126 views
When the concentration of a weak acid in solution is equal to the concentration of its conjugate base in solution, then:Would
1. 0 answers
2. asked by Marcus
3. 1,122 views
for a .001M solution of methionine:a) calculate the isoelectric pH b) calculate the isoionic pH
1. 1 answer
2. asked by Lana
3. 1,116 views
Rewrite the following expression as an algebraic expression in x:cos(arcsin(x))
1. 1 answer
2. asked by Natalie
3. 1,098 views
The president of a large university wishes to estimate the average age of the students presently enrolled. From past studies,
1. 1 answer
2. asked by chris
3. 1,095 views
A builder pushesa wheelbarrow loaded with sand ,from rest at point A,up a ramp of unknown length ,which is inclined at unknown
1. 0 answers
2. asked by lucky
3. 1,086 views
A rollercoaster car loaded with passengers has a mass of 2,000 kilograms. The track of the roller coaster has a semi-circular
1. 1 answer
2. asked by Anonymous
3. 1,075 views
When 1988 J of heat energy is added to 47.5 g of hexane, C6H14, the temperature increases by 18.5 °C. Calculate the molar heat
1. 0 answers
2. asked by zach
3. 1,065 views
Two parallel plates are separated by a dielectric of thickness 2 mm with a dielectric constant of 6. If the area of each plate
1. 1 answer
2. asked by Miguel
3. 1,059 views
The inner diameter of a piston is normally distributed with mean of 10 cm and standard deviation 0.03cma)below what value of
1. 1 answer
2. asked by Kira
3. 1,053 views
true life magazine wants an analysis of the demographic characteristics of readers in c++ the marketing department has
1. 0 answers
2. asked by Anonymous
3. 1,052 views
Determine the electric potential energy for the array of three charges shown in the drawing, relative to its value when the
1. 0 answers
2. asked by Emilie
3. 1,045 views
a metal bar weighs 9 grams .93% of of the bar is silver.how many grams of silver is in the bar?
1. 1 answer
2. asked by himani
3. 1,045 views
A basketball player made 65 out of 100 attempted free throws. What pecent of free throws was made?
1. 1 answer
2. asked by deirdre
3. 1,016 views
A rocket takes off vertically at time t=0, and during the first 10 s of flight its acceleration in m/s^2 is given by
1. 1 answer
2. asked by bell
3. 1,005 views
Im not getting these answers at all, please help.Find a formula for the fourth degree polynomial p(x) whose graph is symmetric
1. 1 answer
2. asked by Anonymous
3. 1,004 views
50 ml of a .1103M solution of formic acid is titrated with a .2511M NaOH.a) What is the pH before and NaOH is added? b) How many
1. 0 answers
2. asked by Jessica
3. 990 views
One more question:Beginning with the function f(x) = (0.8)^(x), state what transformations were used on this to obtain the
1. 2 answers
2. asked by Daniel
3. 967 views
A certain constant-pressure reaction is nonspontaneous at 37°C. The entropy change for the reaction is 83 J/K. What can you
1. 0 answers
2. asked by hannah
3. 946 views
Complete and balance the molecular equation, including phases, for the reaction of aqueous copper(II) chloride, CuCl2, and
1. 0 answers
2. asked by Unknown
3. 924 views
Solve negative five-ninths equals negative two v minus one-third for v.choices four-ninths negative one-eighteenth one-ninth
1. 1 answer
2. asked by sammy
3. 921 views
A cylinder shaped jar has a radius of 2 cm and a height of 6 cm. What is the volume of the jar?
1. 1 answer
2. asked by Robinaylor
3. 916 views
What volume of 0.100 M NaOH is needed to make 100.0 mL of a buffer solution with a pH of 6.00 if one starts with 50.0 mL of
1. 0 answers
2. asked by rodger
3. 912 views
An antique dresser was purchased for $7500 in 2005. The dresser increases in value by 9% per year. Find the value of the dresser
1. 2 answers
2. asked by Daniel
3. 899 views
The Question is:The value of a new car depreciates at a rate of 12% per year. 1)Write an equation to represent the approximate
1. 2 answers
2. asked by Daniel
3. 898 views
A crane with a movable pulley system on a horizontal arm is moving a large container. The 355 kg container is hanging from a
1. 1 answer
2. asked by Bella
3. 894 views
Solve sin(x) = -0.36 on 0 le x lt 2piThere are two solutions, A and B, with A < B and A and B in radians to 4 decimal places.
1. 3 answers
2. asked by marie darling
3. 890 views
Poverty leads 2 ppl bng undernourised,n dey lck access 2 clean air n basic services.n als ppl hvng fewer choices abt whr dey
1. 1 answer
2. asked by Sally madiba(hans kekana secondary school
3. 883 views
In a study of store checkout scanning systems, samples of purchases were used to compare the scanned prices to the posted
1. 1 answer
2. asked by Bettie
3. 882 views
A factory worker productivity is normally distributed. worker A produces an average of 84 units per day with a standard
1. 2 answers
2. asked by mercy
3. 868 views
The Earth has a radius of about 6.38 ´ 103 kilometers at the equator and rotates 360° every 24 hours. The angular displacement
1. 0 answers
2. asked by carmen
3. 850 views
I am writing about interviewing Deaf Persons for my ASL research paper. The first person is Christian DeGuzman. He is profoundly
1. 1 answer
2. asked by Erin
3. 843 views
i. Which of the following solutions has the lowest pH (more acidic). Explain you answers.a. a 0.1 M solution of a strong acid or
1. 0 answers
2. asked by m
3. 834 views
Find the volume of the parallelepiped with the given vertices:A(0,0,0) B(4,0,0) C(4,-2,3) D(0,-2,3) E(4,5,3) F(0,5,3) G(0,3,6)
1. 3 answers
2. asked by Christal
3. 818 views
A sphere has a great circle circumference of 40pi feet. What's its volume?
1. 2 answers
2. asked by Shaniqua
3. 815 views
25/11 + 2y = 3Subtract 25/11 from both sides How do subtract this fraction from 3?
1. 1 answer
2. asked by rj
3. 812 views
How to address hiv/aids
1. 3 answers
2. asked by Anonymous
3. 809 views
a curve is such that dy/dx=4x+7. the line y=2x meets the curve at point 'P'. Given that the gradient of the curve at P is 5.
1. 1 answer
2. asked by Ashley
3. 797 views
I have a snow globe with a radius of 2 cm. What is the volme of the globe?
1. 1 answer
2. asked by Robin Taylor
3. 794 views
Glycerol is a nonvolatile water soluble material. It's density is 1.25g/ml.Predict the vapor pressure of a solution of 2.40E2 ml
1. 1 answer
2. asked by Jonah
3. 782 views
A sample of aluminum oxide, Al2O3(s), contains 8.29*10^25 total atoms. Calculate the amount in moles of aluminum oxide in the
1. 0 answers
2. asked by lg
3. 781 views
Graph f(x) = sin(3x)/sin(x) - cos(3x)/cos(x) and make a conjecture. Prove your conjecture.
1. 1 answer
2. asked by Natalie
3. 779 views
Find 3 consecutive positive integers such that the product of the first and third, minus the second, is 1 more than 5 times the
1. 2 answers
2. asked by Nancy
3. 770 views
Phenylketonuria (PKU) is a human metabolic disease caused by the recessive allele k. If 2 heterozygous carriers of the allele
1. 1 answer
2. asked by Rox
3. 769 views
u have 2 cars moving at the same mass and speed collide and stick together what is the momentum?a. twice the original b. half
1. 0 answers
2. asked by Anonymous
3. 766 views
The length of a rectangular flag is four yards longer than the width. The area f the flag is 140 square yards. Find the length
1. 1 answer
2. asked by Danielle
3. 765 views
in triangle DEF,<D=50 degree, DE=14 meters, and DF=10 meters. find the area of triangle DEFto the nearest tenth of a square
1. 1 answer
2. asked by Alex
3. 762 views
solve the problem A drug is injected into a patient and the concentration of the drug is monitored. The drug's concentration,
1. 1 answer
2. asked by sara
3. 761 views
What value(s) of theta (0 less than or equal to theta less than or equal to 2pi) solve the following equation: cos squared theta
1. 2 answers
2. asked by Natalie
3. 757 views
John has 4 math books, 6 biology books,, and 8 statistics books to arrange on a shelf. In how many ways can he arrange the books
1. 2 answers
2. asked by Reet
3. 747 views
The indicator bromocresol green (HIn) can be in two different forms: As HIn the color of the indicator is yellow, an In the
1. 0 answers
2. asked by Marcus
3. 744 views
(c) Is this pedigree consistent with sex-linked recessive inheritance?Yes No If you chose "yes", answer questions (i) and (ii)
1. 4 answers
2. asked by selly
3. 741 views
One hundred subjects in a psychological study had a mean of 35 on a test instrument designed to measure anger. The study the
1. 3 answers
2. asked by chris
3. 740 views
An investor desires to make an investment in bonds provided he realize 10% on his investment. How much can he afford to pay for
1. 0 answers
2. asked by Meme
3. 740 views
Carbon dioxide dissolves in water to form carbonic acid, which is primarily dissolved CO2. Dissolved CO2 satisfies the
1. 0 answers
2. asked by helllp
3. 737 views
If there are 2L of H2 gas at .625 atm, and 1L of N2 gas at .200 atm isolated in two flasks, what are the final partial pressures
1. 1 answer
2. asked by Lily
3. 735 views
a cube is 5x5x5. How many smaller cubesin the larger cube. So I just mult. to get 125?
1. 1 answer
2. asked by jeanna
3. 733 views
Sodium fluoride and lead nitrate are both soluble in water. If 1.13 g of NaF and 0.232 g of Pb(NO3)2 are dissolved in sufficient
1. 1 answer
2. asked by jeff
3. 731 views
I'm having trouble balancing this equation: SO3^2- --> S2O4^2-It's in a basic solution. Thanks.
1. 1 answer
2. asked by C
3. 730 views
A plane leaves point A and flies S80° E to point B400 km away. How far east of A is B (to the nearest kilometer)?
1. 1 answer
2. asked by Vincent
3. 725 views
Gettin to old to help a 13 yr old. I think I know the answer to the below but need to confirm it. Anyone that could assist this
1. 1 answer
2. asked by Grandpa
3. 711 views
Products used to remove clogs in drains contain strong bases, such as sodium hydroxide (NaOH). If drain cleaner containing 10.0g
1. 0 answers
2. asked by Allyson
3. 698 views
Sumptuary laws are: (Points : 1)property laws. marriage laws. religious laws. civil laws.
1. 1 answer
2. asked by Tawnya
3. 683 views
find the length of arc if an angle measuring 25 degrees is in the circle of radius 6 feet
1. 2 answers
2. asked by Alex
3. 673 views
Consider the diprotic acid H2A with K1 1*10^-3 and K2= 1*10^-9 .Find pH, [H2A], [HA], and [A2-] for a .2000M solution of H2A
1. 0 answers
2. asked by Jessica
3. 672 views
Simplify. (82 - 60) + [(-3 x 4) - 36÷4]25 19 10 1 <- I think this one is right I really hate math!!! lol...
1. 1 answer
2. asked by Tammy
3. 672 views
A current I=2 Amperes flows in a circular single loop coil of radius R=10 cm.(a) Evaluate the magnitude of the magnetic field
1. 16 answers
2. asked by abdul rahman
3. 668 views
The weather forecast states that there is a 70% chance of rain tomorrow. Which of the "definitions" of probability is relevant
1. 2 answers
2. asked by Alice
3. 664 views
I need help revising for pronouns towards this paragraph:Choosing a roommate is more difficult than they might think. People
1. 1 answer
2. asked by CHRISTINA OTORINO
3. 660 views
i. Which of the following solutions has the lowest pH (more acidic). Explain you answers.a. a 0.1 M solution of a strong acid or
1. 0 answers
2. asked by m
3. 654 views

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