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2012
February

Questions Asked on February 1, 2012

A bag contains 6 blue balls, 4 green and 2 red. If you put your hand in and picked a ball at random what are the chances it is
1. 4 answers
2. asked by Anonymous
3. 4,788 views
A bicycle and its rider together have a mass of 80 kg. If the bicycle's speed is 6m/s, how much force is needed to bring it to a
1. 3 answers
2. asked by Jessica
3. 14,982 views
if the distance between crest were 1.5 meters apart, and 2 crest pass the pole each second, what would be the speed of the wave
1. 2 answers
2. asked by natalie
3. 1,250 views
Consider the following substance:Al2(SO4)3 What is the oxidation number of: a) aluminum b) sulfur c)oxygen
1. 2 answers
2. asked by sam
3. 2,259 views
Explain how to find the sum negative sixty-five plus positive forty-one using a number line, then give the answe
1. 3 answers
2. asked by cha
3. 461 views
(3.84 x 103 x 0.764) + 1.59answer with the correct sig figs
1. 1 answer
2. asked by k
3. 470 views
A patient has 0.050 L of blood drawn and this volume of blood has a mass of 55.0 g. What is the density of the blood? Answer
1. 3 answers
2. asked by k
3. 1,646 views
Which value of x makes the following equation true?7.8(x - 2) = -0.2x + 40.4
1. 1 answer
2. asked by chris
3. 543 views
An antibiotic is sold in 4.0 mL ampoules that contain 60.0 mg of drug (60.0 mg/ 4.0 mL). How many milliliters of the antibiotic
1. 1 answer
2. asked by krystal
3. 408 views
I didn't notice the spelling mistake. Could you please check which alternative is best? Thank you.1) I did't manage to finish my
1. 1 answer
2. asked by Henry2
3. 585 views
When 15.5 + 0.125 + 2.55 are added, the answer with the correct number of significant figures is
1. 1 answer
2. asked by katie
3. 405 views
At 20 °C, chloroform (CHCl3) has a density of 1.489 g/mL. What is the mass of 7.52 mL of chloroform at 20°C?
1. 1 answer
2. asked by katie
3. 1,937 views
You are traveling in a country that uses the metric system. Your child is sick and a nurse determines her temperature to be 40.8
1. 1 answer
2. asked by kr
3. 540 views
Aluminum reacts with hydrochloric acid to produce aluminum chloride and hydrogen gas. What mass of hydrochloric acid reacts when
1. 1 answer
2. asked by Kendall
3. 1,493 views
A kitten's normal body temperature is 102ºF. Express this temperature in ºC.
1. 1 answer
2. asked by kr
3. 805 views
What is the angle (in standard position - i.e. measured counterclockwise from the positive x-axis) formed by a line from the
1. 0 answers
2. asked by Anonymous
3. 397 views
Zenapax® is used as part of immunosuppressive therapy for transplant patients. The dosage is calculated on the basis of 1.0
1. 2 answers
2. asked by kr
3. 1,147 views
The following reaction has the following standard thermodynamic parameters:Reaction: C(g) + D(g)----> E(g) Delta H
1. 1 answer
2. asked by Kay
3. 1,011 views
Ethanol has a density of 0.780 g/mL. What volume would 500. grams of ethanol occupy. Answer with correct number of sig figs
1. 2 answers
2. asked by kr
3. 591 views
The terminal side of θ lies on a given line in the specified quadrant. Find the values of the six trigonometric functions of θ
1. 2 answers
2. asked by andrea
3. 4,157 views
How much work is done by an applied force that moves two charges of +7.8 µC that are initially very far apart to a distance of
1. 0 answers
2. asked by Andrew
3. 549 views
Two charges of equal magnitude of 2C and mass of 1.0 g are separated by a distance of 3 mm. Find the velocity of one particle
1. 1 answer
2. asked by Catherine
3. 735 views
When a projectile leaves a starting point at an angle of elevation of theta with a velocity v, the horizontal distance it
1. 2 answers
2. asked by jake
3. 507 views
A test has 125 items. Each correct answer earns 1point and 65 percent is a passing grade. If you get 42 answers wrong will you
1. 2 answers
2. asked by Devon
3. 498 views
A tennis ball is thrown horizontally from an elevation of 20.60 m above the ground with a speed of 21.0 m/svertical m from
1. 0 answers
2. asked by Anonymous
3. 1,084 views
A ball is thrown from a point 1.1 m above the ground. The initial velocity is 20.3 m/s at an angle of 32.0° above the
1. 2 answers
2. asked by Anonymous
3. 561 views
Marla has three secret code cards. The first shows a 37. The second card has the first box blanked out, and the second box is a
1. 5 answers
2. asked by Mythreyee
3. 1,050 views
A dolphin wants to swim directly back to its home bay, which is 0.85 km due west. It can swim at a speed of 4.35 m/s relative to
1. 1 answer
2. asked by Anonymous
3. 529 views
Sheena can row a boat at 2.91 mi/h in still water. She needs to cross a river that is 1.24 mi wide with a current flowing at
1. 0 answers
2. asked by Anonymous
3. 489 views
The sticker price of car is $15,800. If the sales tax is 8% what is the total cost? Show working
1. 1 answer
2. asked by Devon
3. 788 views
A farmer has 80 feet of fencing, which she plans to use to fence in a plot of land for a pigpen. If she chooses to enclose a
1. 1 answer
2. asked by Chelsea
3. 4,010 views
Is six yards greater, less than,cor equal to 12 feet?
1. 1 answer
2. asked by Someone...
3. 341 views
If teacher x gives a pop quiz on Monday and then every five classes, and teacher y gives a pop quiz on Monday and then every six
1. 1 answer
2. asked by Teresa
3. 1,106 views
i have a test tomorow . so can you help me ? thank you.
1. 1 answer
2. asked by Blair
3. 190 views
A coin is placed on a vinyl stereo record that is making 33 1/3 revolutions per minute on a turntable.In what direction is the
1. 1 answer
2. asked by colleen
3. 2,090 views
Simplify the expression √x2 +1 as much as possible after substituting tan(θ) for x.
1. 1 answer
2. asked by Courtney
3. 1,458 views
if you have the numbers 41,67,13,44,25 and they want you to find the mode would there be no mode? I know mode is the number that
1. 1 answer
2. asked by jill
3. 923 views
Which compound is capable of donating a proton (H+)?A. Acetic acid B. Sodium hydroxide C. Acetylene D. Pentane E. Cyclohexane
1. 3 answers
2. asked by Ryan
3. 498 views
An 845-N sled is pulled a distance of 190 m. The task requires 1.70 104 J of work and is done by pulling on a rope with a force
1. 1 answer
2. asked by Ethan
3. 516 views
Karen has a mass of 62.60 kg and she rides the up escalator at Woodley Park Station of the Washington D.C. Metro. Karen rode a
1. 1 answer
2. asked by Ethan
3. 968 views
Factor the polynomial as the product of factors that are irreducible over the real numbers. Then write the polynomial in
1. 1 answer
2. asked by Chelsea
3. 1,381 views
How do you put into scientific notation -6 x 10 to the power of -5?
1. 1 answer
2. asked by Li
3. 357 views
(2.60 x 10^3 x 0.897) + 2.69 (with correct # of sig figs)IS the answer 2334.89
1. 1 answer
2. asked by kr
3. 404 views
find x and y5x-3y=-4 3x+2y=9
1. 1 answer
2. asked by tanya
3. 319 views
I just wanted to know if you have the tradition of "the kindly old woman" in America and if yes, what do you call her?1) On
1. 0 answers
2. asked by Henry2
3. 424 views
I varied the sentences considering the students' point of view. Thank you very much for your adviceThey will be able to: 1)be
1. 0 answers
2. asked by Henry2
3. 462 views
i want know how to say this in words. I try myself in brackets. i am doing this for bio class so if i have to speak out loud
1. 4 answers
2. asked by Shreya
3. 965 views
What are emotional changes boys and girls experience during puberty?
1. 2 answers
2. asked by Sasha
3. 476 views
When is a wrestler "king of the ring"?
1. 4 answers
2. asked by Anonymous
3. 2,312 views
Use the method of cylindrical shells to find the volume V generated by rotating the region bounded by the?Use the method of
1. 1 answer
2. asked by John
3. 2,996 views
a car traveling on a straight road at 20 meters per second accelerates to 26 meters per second in 12 seconds. what is the total
1. 1 answer
2. asked by lisa
3. 931 views
learning geometry i need to determine whether each pair of figures is similar. and explain why or why not: since I cant draw can
1. 2 answers
2. asked by marko
3. 851 views
What wave of feminism would Charlotte Gilman ("The Yellow Wallpaper") fall into?
1. 1 answer
2. asked by Casey
3. 390 views
marcia said that if she estimates 73 x 7 ,the product will be less that the exact answer. is she correct ? explain.
1. 2 answers
2. asked by john
3. 328 views
a colony of 300 bacteria doubles each day. write an explicit formula to determine how many bacteria there would be on the nth
1. 1 answer
2. asked by jessica
3. 575 views
I converting 0.001mm to micrometers using staircase method and micro come under millimeter, so that mean move one decimal to
1. 1 answer
2. asked by Shreya
3. 453 views
march madness is a tournament of the top 64 NVAA basketball teams. at the end of each round there are half as many teams as
1. 1 answer
2. asked by dianela
3. 498 views
1. The area shown below will be used for the elementary school playground. What is this area? How much fencing is needed to
1. 1 answer
2. asked by Anonymous
3. 582 views
when and where were clothes first made
1. 1 answer
2. asked by vickie free
3. 371 views
Indexing exemptions for inflation. Each year, the Internal Revenue Service adjusts the value of an exemption based on
1. 0 answers
2. asked by shanty
3. 449 views
Find the equation of the tangent line to the curve y=sqrt(x) at x = c. Put the answer in slope intercept form y=mx+b. Use the
1. 1 answer
2. asked by jon
3. 1,325 views
Suppose you are going on a weekend trip to a city that is d miles away. Develop a model that determines your round-trip gasoline
1. 1 answer
2. asked by VEE
3. 1,871 views
In class, we did a decomposition reaction of sodium hydrogen carbonate, which makes water, carbon dioxide, and sodium carbonate.
1. 1 answer
2. asked by Anita
3. 680 views
Lisa is planning to put a border around the edge of a circular table. She needs to know how long the border needs to be so that
1. 1 answer
2. asked by Pedro
3. 603 views
what is the heaviest element with a single letter symbol?
1. 1 answer
2. asked by stephanie
3. 584 views
a kennel owner is buying a new building he want the space for each dog run to be at least 96 square ft the area reserved for the
1. 1 answer
2. asked by eddie
3. 488 views
How many kilometers can light travel in 1 year? How many kilometers can light travel in 365.25 days? Show me Thank You
1. 1 answer
2. asked by glenn help help help
3. 399 views
estimating productswriting to explain .each video game at an arcade requires 375 tokens. tom has 2,000 tokens . he said he can
1. 3 answers
2. asked by carla
3. 474 views
Use the Rational Root Theorem to list all possible rational roots for each equation. Then find any actual roots.x^3 + 2x^2 + 3x
1. 0 answers
2. asked by help pleaseeeee!!!!
3. 880 views
number sense . is the product of 4 x 8,827 less than 36,000? how do you know ?
1. 1 answer
2. asked by reny
3. 293 views
therebare 365 days in a year. about how many days has Jared lived if he has reached his 8th birthady?
1. 1 answer
2. asked by mia
3. 389 views
You throw a ball straight down from an apartment balcony to the ground below. The ball has an initial velocity of 5.20 m/s,
1. 1 answer
2. asked by Haze
3. 1,363 views
A hydrogen atom has a single proton at its center and a single electron at a distance of approximately 0.0537 nm from the
1. 1 answer
2. asked by anybody?
3. 1,082 views
In the fall of 2000, 54% of the almost 34,000 first-year students attending one of the California State Universities had strong
1. 0 answers
2. asked by Mandy
3. 873 views
What did the United States gain from the War of 1812?
1. 1 answer
2. asked by stephanie
3. 1,187 views
an arena seats 7,893 people.The circus is in town and all of the tickets have been sold. If the circus has 4 performances, about
1. 1 answer
2. asked by jimmy
3. 428 views
what is the gcf of 35 and 1,715
1. 3 answers
2. asked by Ryan
3. 322 views
A certain capacitor stores 473 J of energy when it holds 7.91 x 10−2 C of charge. What is the capacitance of this capacitor?Wh
1. 0 answers
2. asked by Ashley
3. 394 views
abbi invested 1,500 dollars in a certificate of deposit with a simple interest rate of 4 percent. find the interest earned in 6
1. 2 answers
2. asked by iconiac and a granderz fan
3. 936 views
Which compound below would be expected to have the highest boiling point?a) CH3-CH2-CH2-CH2-CH2-CH2-CH3 b)
1. 1 answer
2. asked by Sam
3. 1,604 views
Which compound below would be expected to have the highest boiling point?a) CH3-CH2-CH2-CH2-CH2-CH2-CH3 b)
1. 1 answer
2. asked by Sam
3. 562 views
Which compound below would be expected to have the highest boiling point?a) CH3-CH2-CH2-CH2-CH2-CH2-CH3 b)
1. 1 answer
2. asked by Sam
3. 1,306 views
When temperature changes during the day, which scale, Celsius or Fahrenheit, will read a smaller change? and why?
1. 2 answers
2. asked by anonymous
3. 1,185 views
If the concentration of a reactant is decreased, will the speed of the reaction increase or decrease? Explain.I understand that
1. 4 answers
2. asked by Alexandra
3. 566 views
Solve for x, 0<x<2pi3sin^2x - sinx -2=0 Its not factorable, do I use quadratic formula?
1. 2 answers
2. asked by jake
3. 436 views
The product of two consecutive intergers is 56. Find the intergers.
1. 3 answers
2. asked by Annie
3. 490 views
Find the electric potential energy for the following array of charges: charge q1 = +3.0 µC is located at (x, y) = (0.0, 0.0) m;
1. 1 answer
2. asked by anybody?
3. 1,184 views
Capacitors are used in many applications where you need to supply a short burst of energy. A 143 μF capacitor in an electronic
1. 0 answers
2. asked by Ashley
3. 571 views
The order of the boiling points for the hydrogen halides, except for HF, isHI > HBr > HCl. The reason for this order can be
1. 1 answer
2. asked by Ashley
3. 737 views
suppose a 1.50 kg object is suspended from the end of a silicone band. when the object is pulled down and released, the band
1. 1 answer
2. asked by Kyle
3. 379 views
A boy tosses a football upward. If the football rises a vertical distance of 1.3 m and the boy catches it at the same point he
1. 1 answer
2. asked by Haze
3. 686 views
Two parallel plates are 4.85 cm apart. The bottom plate is charged positively and the top plate is charged negatively, producing
1. 0 answers
2. asked by Ashley
3. 777 views
Three factors control the rate of evaporation of a liquid: surface area, temperature, and strengths of intermolecular forces.
1. 1 answer
2. asked by Anna King
3. 1,172 views
A particle is initially moving along the positive x-axis at a speed of 9.90 m/s. After 2.40 s, the particle is moving along the
1. 0 answers
2. asked by Hanna
3. 825 views
A plane is flying west at 214 km/h. The wind is blowing south at 108km/h. a what is the ground speed of the planeb In what
1. 1 answer
2. asked by Shekinah
3. 704 views
Suppose a bag of marbles has 4 green, 2 red, 5 yellow, 1 brown, and 7 blue marbles. What is the probability of picking a green
1. 1 answer
2. asked by Nick
3. 783 views
Is (NH4)2 CO3 ionic or covalent?
1. 1 answer
2. asked by S
3. 1,300 views
Angie's horse ran 3 miles in a race at the county fair. How many yards did her horse run?A.528yd B.5,280yd C.15,840yd D.1,584yd
1. 0 answers
2. asked by Andrew
3. 372 views
I really need someone to help with errors.Teenagers and Driving: A Dangerous Combination Teenagers and vehicles can be a very
1. 0 answers
2. asked by Joel
3. 1,041 views
How do you put into scientific notation -6 x 10 to the power of -5?
1. 2 answers
2. asked by Li
3. 424 views

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