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Questions Asked on December 19, 2012

A regular hexagon is inscribed in a circle and another regular hexagon is circumscribed about the same circle. What is the ratio
1. 7 answers
2. asked by Knights
3. 7,794 views
The air within a piston equipped with a cylinder absorbs 570J of heat and expands from an initial volume of 0.12L to a final
1. 1 answer
2. asked by savannah
3. 7,580 views
Which of the following are true concerning living things? Check all that apply.A)They contain a vital force absent in nonliving
1. 8 answers
2. asked by joey
3. 7,179 views
Instant cold packs, often used to ice athletic injuries on the field, contain ammonium nitrate and water separated by a thin
1. 5 answers
2. asked by savannah
3. 5,985 views
3.Which of the following equations has an infinite number of solutions? (1 point) 3x – 3 = –4x 2y + 4 – y = 16 7x + 5 = 4x
1. 17 answers
2. asked by Delilah
3. 5,277 views
When a 3.25 g sample of solid sodium hydroxide was dissolved in a calorimeter in 100 g of water, the temperature rose from 23.9
1. 2 answers
2. asked by Jamie
3. 5,068 views
Hershey and Chase used the 35S isotope to label proteins. How does this isotope differ from the 32S isotope found in greatest
1. 8 answers
2. asked by joey
3. 4,686 views
the cost of 6 cows are same as cost of 8 goats. if cost of 9 cows and twice numbered goats is rs. 9000, then find the cost of 3
1. 4 answers
2. asked by Anonymous
3. 4,390 views
What are the four ocean zones of a marine ecosystem, from most shallow to deepest?
1. 3 answers
2. asked by Anonymous
3. 4,334 views
A spring has a force constant of 70000 N/m.How far must it be stretched for its potential energy to be 21 J?
1. 1 answer
2. asked by Anonymous
3. 3,830 views
a soccer player kicks a 0.5 kg stationary ball with a force of 50 newtons .what is the force on the players foot?
1. 2 answers
2. asked by cheyanne
3. 3,687 views
what 5th grade social studies word starts with Y,Z,and N?
1. 17 answers
2. asked by Olivia
3. 3,489 views
Let f be a twice-differentiable function defined on the interval -1.2 less than or equal to x less than or equal to 3.2 with
1. 2 answers
2. asked by Madeline
3. 3,464 views
2. Methane (CH4), ammonia (NH3), and oxygen (O2) can react to form hydrogen cyanide (HCN) and water according to this equation:C
1. 2 answers
2. asked by Taylor
3. 2,912 views
In 1915, the tallest flagpole in the world was in San Francisco.a. When the angle of elevation of the sun was 55 degrees, the
1. 3 answers
2. asked by Lavanda
3. 2,847 views
In a geometric sequence, the fourth term is -4, and the eighth term is -324. What is the tenth term?
1. 1 answer
2. asked by Ally
3. 2,816 views
A particle moves along the x-axis with the velocity given by v(t)=3t/(1+t^2) for t >or equal to 0. When t=0, the particle is at
1. 3 answers
2. asked by Madeline
3. 2,801 views
The point P(k,24) is 25 units from the origin. If P is on the terminal arm of an angle in standard position, find, for each
1. 1 answer
2. asked by Dominique
3. 2,642 views
A Knight of the Round Table ﬁres oﬀ a vat ofburning pitch from his catapult at 17 m/s, at 29 ◦ above the horizontal. The
1. 1 answer
2. asked by James
3. 2,535 views
which of the following expresses 374,274 in scientific notation? 1] 3.74274 x 105 2] 3.74274 x 106 3] 37.4274 x 106 4] 374.274 x
1. 1 answer
2. asked by pierre 2
3. 2,414 views
In triangle GHI, angle H is a right angle, GH=40, and cos G=40/41. Find each value in fraction and in decimal form.a. sin G b.
1. 4 answers
2. asked by Lavanda
3. 2,371 views
2. Methane (CH4), ammonia (NH3), and oxygen (O2) can react to form hydrogen cyanide (HCN) and water according to this equation:C
1. 1 answer
2. asked by Taylor
3. 2,322 views
A stairway runs up the edge of thepyramid. From bottom to top the stairway is 92 m long. The stairway makes an angle of 70° to
1. 4 answers
2. asked by Anonymous
3. 2,256 views
A 4 kg block rests between the floor and a 3 kg block. The 3 kg block is tied to a wall by a horizontal rope. If the coefficient
1. 1 answer
2. asked by Joe
3. 2,024 views
based on the results of the studies,what should an elementary school teacher do to ensure that a child with an unusual name
1. 3 answers
2. asked by mirlaine
3. 1,821 views
which one of the following conclusions is supported by the results of these studies? 1)characteristics other than one's name
1. 7 answers
2. asked by mirlaine
3. 1,778 views
A group of students have volunteered for the student council car wash. Janet can wash a car in m minutes. Rodrigs can wash a car
1. 1 answer
2. asked by Ted
3. 1,746 views
1. what is the economic importance of Noctiluca?2. what is the economic importance of Volvox?
1. 5 answers
2. asked by mollusca
3. 1,715 views
1. An investor purchases a mutual fund for $50. The fund pays dividends of $1.50, distributes a capital gain of $2, and charges
1. 3 answers
2. asked by Sandra
3. 1,696 views
2. Methane (CH4), ammonia (NH3), and oxygen (O2) can react to form hydrogen cyanide (HCN) and water according to this equation:C
1. 2 answers
2. asked by Taylor
3. 1,656 views
Which of the following definite integrals gives the length of y = e^(e^x) between x=0 and x=1?All the answers are preceded by
1. 2 answers
2. asked by Jess
3. 1,587 views
8. All cataracts were originally thought to be acquired; however, recent research indicates that some cataracts are genetic in
1. 1 answer
2. asked by Chelsea
3. 1,568 views
A 2561-kg van runs into the back of a 823-kg compact car at rest. They move off together at 8.5 m/s. Assuming the friction with
1. 2 answers
2. asked by Anonymous,
3. 1,521 views
According to the article,which action is suggested as the best way to prevent death and injure from natural disasters?1)control
1. 1 answer
2. asked by mirlaine
3. 1,513 views
A person, sunbathing on a warm day, is lying horizontally on the deck of a boat. Her mass is 59.6 kg, and the coefficient of
1. 1 answer
2. asked by Sadie
3. 1,366 views
It certainly pays to check your work! I just took a huge science test. I checked it over twice before I turned it in, and I got
1. 1 answer
2. asked by Eternal
3. 1,356 views
twelve less than the product of 3 and a number . translate
1. 1 answer
2. asked by ellis
3. 1,338 views
A police car is at rest beside a road, looking for speeders. A car passes going at a constant speed of 30.0 m/s. The police car
1. 2 answers
2. asked by Emily
3. 1,338 views
Before a collision, a 24 kg object is moving at +13 m/s. Find the impulse that acted on the object if, after the collision, it
1. 1 answer
2. asked by Anonymous,
3. 1,326 views
Lead chloride dissolves in water according toPbCl2(s)↔Pb2++2Cl−(aq) The solubility in pure water has been measured to be
1. 1 answer
2. asked by eee
3. 1,314 views
Let f be a twice-differentiable function defined on the interval -1.2 less than or equal to x less than or equal to 3.2 with
1. 0 answers
2. asked by Madeline
3. 1,279 views
4. Bacillus thuringiensis (Bt) is a bacterium that contains a gene that results in the production of a natural pesticide that
1. 0 answers
2. asked by Chelsea
3. 1,265 views
2. Methane (CH4), ammonia (NH3), and oxygen (O2) can react to form hydrogen cyanide (HCN) and water according to this equation:C
1. 0 answers
2. asked by Taylor
3. 1,238 views
A rectangular reservoir is 120m long,and 75cm wide .at what speed per hour must water flow into it through a square pipe of 20cm
1. 1 answer
2. asked by Anonymous
3. 1,199 views
Determine the magnitude and direction of the gravitational force exerted a) on the Moon by Earth and b) on Earth by Moon.
1. 2 answers
2. asked by g
3. 1,178 views
A 3.0kg object originally at rest explodes and splits into three fragments. One fragment has a mass of .50kg and flies off along
1. 2 answers
2. asked by Kellie
3. 1,163 views
Which of the following statements is not true about samples that can be treated as matched pairs data?I. Data collected on these
1. 1 answer
2. asked by Robert
3. 1,157 views
find the parametric equations of the line that passes through the point p(2,3,4)& parallel to the xz-plane
1. 1 answer
2. asked by Bayeh
3. 1,156 views
statistics homework help A drinking game involves a 14 sided die. Six of the 14 faces are squares A, B, C, D, E,and F for short.
1. 2 answers
2. asked by Anonymous
3. 1,148 views
the ABC cell phone company offers a plan that includes a flat rate fee of $29 per month plus a $0.12 charge per minute.write an
1. 4 answers
2. asked by ellis
3. 1,147 views
Iman collects quarters,dimes, nickels, and pennies. This morning he took $1.80 from his collection . He counted the coins and
1. 3 answers
2. asked by Lotaya
3. 1,140 views
There are 1,800 students at a high school. Of the students who have smoked at least one cigarette in the last month,
1. 0 answers
2. asked by Chris - Ms Sue Please
3. 1,127 views
the mean score on a math test taken by 15 students was 82%. one more student takes the test late and earns 93%. what is the new
1. 4 answers
2. asked by ellis
3. 1,100 views
vickie earns $20,000 a year as a bookkeeper.if she receive a raise of 2%,how could her new total salary be represented? 1]
1. 2 answers
2. asked by lucene3
3. 1,091 views
Let the region bounded by x^2 + y^2 = 9 be the base of a solid. Find the volume if cross sections taken perpendicular to the
1. 1 answer
2. asked by Misha
3. 1,091 views
my social studies fair project is due tomorrow and i have no idea how to start my actual report i was fine and doing great until
1. 3 answers
2. asked by jaida
3. 1,085 views
You are at the park. You are going to analyze a roller coaster. You ask the attendant for the height of the first hill and find
1. 1 answer
2. asked by Help!
3. 1,073 views
given:25.9 kJ + 1/2 H2 + 1/2 I2 => HI how much energy is needed for the reaction of 4.57x10^24 molecules of iodine, I2, with
1. 1 answer
2. asked by Zack
3. 1,066 views
2. Read the passage and answer the following question:Within a few hours after bidding good-by to General Washington, Captain
1. 2 answers
2. asked by Beatrice
3. 1,051 views
Hi, can you help me please with this: translate the following sentence into equation: Two numbers have a sum of 20, which is the
1. 1 answer
2. asked by Georges
3. 1,045 views
At a lake, 40 people are water skiing or on the beach. Nine of the 12 people on the beach decide to swim. How many people are
1. 1 answer
2. asked by Isaac
3. 1,014 views
Enzymes in the liver catalyze a large number of reactions that degrade ingested toxic chemicals . By what factor is the rate of
1. 1 answer
2. asked by firdaus
3. 1,014 views
If the given point is on the terminal arm of an angle A in standard position, angle A is greater than or equal to 0 degrees and
1. 1 answer
2. asked by Nicole
3. 1,001 views
Find the complete solution of each equation. Express your answer in degrees.sec^2 θ+sec θ=0 2 cos^2 θ+1=0 cot θ=cot^2 θ
1. 1 answer
2. asked by Lavanda
3. 998 views
A worker applies a constant force of magnitude F = 339 N on a crate in a direction è = 26.1o above the horizontal as he pulls
1. 0 answers
2. asked by Sara H
3. 989 views
Points D, E, and F are the midpoints of sides BC, CA, and AB of ABC, respectively, and CZ is an altitude of the triangle. If
1. 2 answers
2. asked by Knights
3. 988 views
(2*4) with a exponet of 2------ 7+3 with a exponet of 2
1. 2 answers
2. asked by ellis
3. 985 views
The coefficients of static and kinetic friction between a 50 kg box and a horizontal surface are 0.64 and 0.17, respectively.(a)
1. 1 answer
2. asked by Josh
3. 977 views
which of the following is an example of a natural hazard of the type and magnitude of those referred to in the article? 1)an
1. 3 answers
2. asked by mirlaine
3. 963 views
7. The mutation for cataracts (c) occurs on a gene represented by the letter E. Owls that are homozygous for the mutation (EcEc)
1. 1 answer
2. asked by Chelsea
3. 959 views
Large numbers of people have moved from rural areas to urban areas in Asia, Africa, and Latin America because(1 point) they want
1. 6 answers
2. asked by Gabby
3. 956 views
If the given point is on the terminal arm of an angle A in stadard position. 0 degrees more than or equal too A and less than or
1. 3 answers
2. asked by Priya
3. 952 views
parallelogram A is similar to Parallelogram B.If the area of parallelogram b is 162 square units, what is the area of
1. 3 answers
2. asked by bryce
3. 941 views
8.58g of coastic soada was dissolved to produce a solution of 500cm3 .to neutralize 50cm3 of this solution 15cm3 of 0.4M HCl was
1. 1 answer
2. asked by fathima
3. 904 views
When 0.558g of biphenyl (C_12H_10) undergoes combustion in a bomb calorimeter, the temperature rises from 25.7^\circ C to
1. 3 answers
2. asked by savannah
3. 902 views
how do you make bibliographies for the sites you gave me early??
1. 2 answers
2. asked by Jadia
3. 897 views
one angle of a triangle is 90 degrees.if the ratio of the legs is 1:1,what are the measures [in degrees] of the two remaining
1. 2 answers
2. asked by lucene3
3. 893 views
I don't know how to change 1/3 and 2 1/3into a decimal and still show my work
1. 3 answers
2. asked by hannah
3. 889 views
I need to determine the amount of an investment if $1000 is invested at an interest rate of 8% compounded quarterly for 2 years.
1. 2 answers
2. asked by MaryJo
3. 879 views
Find the approximate number of radians, to the nearest hundreth, in the angles with the following dergree measures.a) 60 degrees
1. 2 answers
2. asked by Jiskha lover:D
3. 872 views
a crane lifts a metal beam with a mass of 1350 kg. Calculate the amount of work done against gravity if the beam is lifted 37.5
1. 1 answer
2. asked by Jeevika
3. 866 views
ja picks a cube from a bag 25 times without looking at it. the results are 20 red and 5 blue. how many of each color would you
1. 1 answer
2. asked by ashy
3. 844 views
Would this be a double or single replacement and why? ThanksNa2O2 + H2O -> NaOH + O2 Would it be single since the Na is pair
1. 3 answers
2. asked by Shadow
3. 836 views
An experiment requires 0.7 M NH3(aq). Thestockroom manager estimates that 15 L of the base is needed. What volume of 15 M
1. 1 answer
2. asked by lauren
3. 787 views
Susie's cat had kittens. 4 of them were female, 3 of them were black. If 1/2 the litter had short tails, what is the maximum
1. 0 answers
2. asked by april
3. 784 views
I am writing a persuasive essay and I need some tips on making it persuasive. It is turning out to be just an essay, not a
1. 1 answer
2. asked by Destiny
3. 779 views
Two particles move along the x -axis. For 0 is less than or equal to t is less than or equal to 6, the position of particle P at
1. 0 answers
2. asked by Madeline
3. 763 views
You have $59.95 in your wallet and want to buy some new CDs. If the CDs are $11.99 each, what number of CDs, x, can you buy?
1. 3 answers
2. asked by Delilah
3. 762 views
A soccer team is likely to score a goal at any time during a game. What is the probability it scores during the first half?Use
1. 1 answer
2. asked by Anonymous
3. 758 views
Eye color is determined by genetic combination. Let R represent the gene for brown eyes and l represent the gene for blue eyes.
1. 2 answers
2. asked by ana URGENT
3. 751 views
9. Prior to herbicide application, a student notes that there are two related species of weeds (A and B) that occur in similar
1. 0 answers
2. asked by Chelsea
3. 745 views
Obtuse angles A and B are in standard position. Point P(-3,4) is on the terminal arm of angle A. Point Q(-9,12)is on the
1. 1 answer
2. asked by Dominique
3. 742 views
The region in the first quadrant enclosed by the graphs of y = x and y = 2sin(x) is revolved about the x-axis. The volume of
1. 0 answers
2. asked by Addie
3. 740 views
A 83 kg person escapes from a burning building by jumping from a window 21 m above acatching net. The acceleration of gravity is
1. 2 answers
2. asked by amir
3. 734 views
The game of chuck-a-luck consists of rolling 3 dice. The player picks a number, 1, 2, 3, 4, 5, or 6. Winning and losing depends
1. 0 answers
2. asked by Robert
3. 726 views
an electrolytic cell requires a salt bridge. true or falseI say true
1. 1 answer
2. asked by Anonymous
3. 716 views
What length of a solid cylinder 2cm in diameter must be taken to recast into hollow cylinder of length 16cm,external diameter
1. 2 answers
2. asked by Anonymous
3. 711 views
a bag contains 5 blue marbles 4 red marbles and 1 green marble. what is the probability of drawing a blue marble,the another
1. 2 answers
2. asked by bryce
3. 707 views
Find angle A if it is greater than or equal to 0 degrees and smaller than or equal to 180 degrees. round to the nearest tenth of
1. 3 answers
2. asked by Jiskha lover:D
3. 706 views
Please help!!!!!The points A,B,C,D have coordinates (3,3), (8,0), (-1,1), (-6,4) respectively. a) Find the gradients of the
1. 1 answer
2. asked by Jitesh
3. 706 views

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