Questions Asked on
May 7, 2014

science PLEASE CHECK MY ANSWERS
1. where does the conversation current in the mantle obtain its heat energy? a. earths core and crust b. earths mantle c. earths core and mantle*** d. earths mantle 2. How do convection currents cause movement of earth's plates? a. The weathering of rocks
asked by what 
math
1. A bag contains 9 tiles numbered 1 to 9. P(4) = 1/9. what type of probability is illustrated and why? (1 point) . experimental; the result is found by repeating an experiment. . experimental; the result is based on the number of possible outcomes.**** .
asked by help ms.sue 
math
a basket contains the following pieces of fruit: 3 apples, 2 oranges, 2 bananas, 2 pears, and 5 peaches. Jameson picks a fruit at random and does not replace it. Then Brittany pricks a fruit at random. What is the probability that Jameson gets a banana and
asked by help please 
math help!!!
stuck!! pls help/explain!!! 2. Do the values in the table represent a linear function? If so, what is the function rule? (1 point) x = 2, 0, 2, 4 y = 4, 0, 4, 8 The values do not show a linear function. Yes, they show a linear function; y = x + 4. Yes,
asked by TTR+S<3 
math
Use the graph below to answer the following question. 1. Find the slope. (1 point) 2 – –2 Use the graph below to answer the following question. 2. Find the slope of the line. Describe how one variable changes in relation to the other.
asked by Anonymous 
science
why would Hooke's discovery have been impossible without the invention of the microscope? A. Because all living things are made up of cells. B. Because cells are too small to see without a microscope C. Because cells are the building blocks of life D.
asked by I NEED HELP FAST!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! 
math
simplify 10p4 A. 210 B. 360 C. 5,040 D. 151,200 simplify 9c4 A. 126 B. 15,120 C. 5 D. 3,024
asked by help please 
math
a bag contains 7 green marbles, 9 red marbles, 10 orange marbles, 5 brown marbles, and 10 blue marbles. you choose a marble, replace it, and choose again. what is P(read, then blue)? A. 77/164 B. 19/41 C. 90/1681 D. 45/41
asked by help please 
math
Food Express is running a special promotion in which customers can win a free gallon of milk with their food purchase if there is a star on their receipt. So far, 129 of the first 138 customers have not received a star on their receipts. What is the
asked by help please 
Chemistry
You can purchase hydrochloric acid in a concentrated form that is 37.0 hcl by mass and has a density of 1.20g/mL. Describe how exactly you would prepare 2.85 L of 0.500 M HCL from the concentrated solution.
asked by Rebecca 
British Literature
1. Compare and contrast the conflicts faced by Orwell in “Shooting an Elephant” to those faced by Gideon in “No Witchcraft for Sale.” To what unique revelation does Orwell’s position as a police officer lead him? How can Gideon’s ultimate
asked by Cathrine 
math
a number cube is rolled 150 times. the number 3 comes up 43 times. hat is the experimental probability of rolling a 3? what is the theoretical probability of rolling a 3? A. 43/150 ; 1/6 B. 43/150 ; 1/50 C. 1/6 ; 43/150 D. 3/43 ; 1/6
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Chemistry  Science (Dr. Bob222)
The following reaction has a positive value of ΔG°. 2H2O(g) → 2H2(g) + O2(g) Which of the following statements must be true? A. The reaction is slow. B. The reaction will not occur. That is, when H2O(g) is introduced into a flask, no O2 or H2 will form
asked by Ana 
math
mera painted equal sections of her bedroom wall to make a pattern. She painted 2/5 of the wall white and 1/2 of the wall lavender. Write an equivalent fraction for each using a common denominator.
asked by angelina 
Check my answers :(
A rock climber grasps onto a ledge in the rock wall. How do the bones and muscles in his arm interact to allow him to hold on? photo of a man climbing a rock wall All of the muscles in his arm contract to hold his arm in position. His arm muscles work in
asked by Anonymous 
MATH PLEASE HELP MRS.SUE!
What are the next three terms in the sequence? –1, 9, 19, 29, … (1 point) 38, 37, 32 40, 51, 62 39, 49, 59 38, 47, 56 2. Geoff planted dahlias in his garden. Dahlias have bulbs that divide and reproduce underground. In the first year, Geoff’s garden
asked by Sally 
Statistics
A survey of 250 lobster fisherman found that they catch an average of 32 pounds of lobster per day with a standard deviation of four pounds. If a random sample of 30 lobster fisherman is selected, what is the probability that their average catch is less
asked by Mark 
Math
A bag contains 5 green marbles, 8 red marbles, 11 orange marbles, 7 brown marbles, and 12 blue marbles. you choose a marble, replace it, and choose again. what is P(red then blue.)
asked by SchoolHelpNeeded 
SCIENCE
1. where does the conversation current in the mantle obtain its heat energy? a. earths core and crust b. earths mantle c. earths core and mantle*** d. earths mantle 2. How do convection currents cause movement of earth's plates? a. The weathering of rocks
asked by CHECK ANSWERS PLEASE 
ALGEBRA
Which set of lengths could be the side lengths of a right triangle? (1 point) • 20 cm, 22 cm, 29 cm • 10 ft, 12 ft, 15 ft • 7 km, 24 km, 28 km • 13 in, 84 in, 85 in
asked by Anonymous 
Math
A carpenter has several boards of equal length. he cuts 3/5 of each board. After cutting the boards, the carpenter notices that he has enough pieces left over to make up the same length as 4 of the original boards. How many boards did the carpenter start
asked by Chris 
science
A transmission electron microscope was used to examine a microscopic organism. No nucleus was found. Which of the following correctly describes the organism? A. The organism is a prokaryote. B. The organism is a eukaryote. C. The organism is not alive. D.
asked by I NEED HELP FAST!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! 
Algebra
Pls help me with these problem solving sums  1)You are building a rectangular brick patio surrounded by crushed stone in a rectangular courtyard.The crushed stone border has a uniform width x (in feet) you have
asked by Anonymous 
SciencePLEASE CHECK!
Which of the following explains how natural selection leads to evolution? A. Conditions in the environment reduce competition for resources within a species. B. Helpful variations accumulate among surviving members of the species. C. Overproduction
asked by Jasmine 
chemistry
The solubility of AB(s) in a 1.000M solution of C(aq) is found to be 0.121 M. What is the Ksp of AB?
asked by help please 
environment
Oil spills and leaks in the Pacific Ocean have harmed marine organisms and the environment. Which kind of environmental issue is illustrated by this example?
asked by Emma 
science
before beginning any land development project, people should carry out a _________ analysis to consider all of the potential impacts of the project on the local ecosystems.
asked by susanne 
Math
You have six $1 bills, eight $5 bills, two $10 bills, and four$20 dollar bills in your wallet. You select a bill at random. Without replacing the bill, you choose a second bill. What is P($1, then $10)? A. 77/190 B. 3/100 C.3/95 D.2/5
asked by SchoolHelpNeeded 
math
Chad buys peanuts in 2 pound bags. He repackages them into bags that hold 5/6 pound of peanuts. How many 2 pound bags of peanuts should Chad buy so that he can fill the 5/6 pound bags without having any peanuts left over?
asked by Chris 
science
Dust mites are microscopic bugs that are too small to see with a dissecting microscope. To see the details of a dust mite’s skin, which of the following microscopes would you use? A. dissecting microscope B. compound microscope C. transmission electron
asked by I NEED HELP FAST!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! 
trig
a carousel has eight evely spaced seats shaped like animals. During each ride, the carousel makes between 8 and 9 clockwise revolutions. At the end of one ride, the carousel stops so that the lion is in the position where the zebra was when the ride
asked by TJ 
CHEMISTRY HELP !!!!
what is the formula for dicyanobis (ethylenediamine) zirconium (IV) nitrate? Thanks!!!
asked by Anonymous 
Social Studies
How did British colonial practices in South Asia reflect the East India Company's practices? A. Tea and coffee were harvested and spices were traded by the East India Company, from which the British wanted to make India a colony. B. Under British
asked by Anonymous 
URGENT Physics help
An attractive force of 7.2 N occurs between two point charges that are 0.10 m apart. If one charge is 4.0 µC, what is the other charge? (µC = 1.0 × 106 C) (Points : 3) 1.0 µC 2.0 µC +1.0 µC +2.0 µC Which substance is most easily grounded? (Points :
asked by Melody 
Science
Which of the following occurs during artificial selection, but not during natural selection? A. Selection pressures result in only certain traits from a population being passed on to offspring. B. Traits are passed to offspring through genes. C. Males and
asked by Jasmine 
Social Studies
Because of the rich soil, migration has taken place to South Asia's A. gorges in the mountains B. Himalayas C. plateau regions D. flood plains D?
asked by Anonymous 
math
The ABC Toy Company is creating two similar pieces for a board game as shown below. Find the value of b that makes the two pieces similar.
asked by Jessica 
Maths
The jade restaurant has a large aquarium on display in its lobby the base of the aquarium is 5feet by 2 feet the height of the aquarium is 4feet him many cubic feet of water are needed to completely fill the aquarium?
asked by Pinks 
Algebra
Triangles ABC and DEF are similar. Find the area of triangle ABC. Round your answer to the nearest tenth. Triangle ABC has a base of 12m. Triangle DEF has a base of 18m and height of 12m
asked by Barb 
math
Solve the problem. An average library contains at least 50 and at most 250 books. How many library owners must be polled to be certain that at least two owners have the same number of books in their libraries?
asked by Anonymous 
Math
The teacher gave this pattern to the class: the first term is 5 and the rule is add 4, subtract 1. Each student says one number. The first student says 5. Victor is tenth in line. What number should Victor say?
asked by Chris 
CHEMISTRY HELP !!!!
Complete the following fission reaction 1/0 n + 235/92 U > 236/92 Te + _____ +2 (1/2)n a) 97/40 Zr b) 99/40 Zr c) 99/38 Sr d) 95/42 Mo e) 96/41 Y Answer is A or B not sure
asked by Kimberly :( 
Matrices
A triangle has vertices (1, 4), (1, 1), and (−3, 1). The triangle is dilated by a scale factor of 2, then translated 5 units up, and then rotated 90° counterclockwise about the origin. What are the vertices of the image of the triangle
asked by Maria 
English
When previewing the following lines from Sonnet 18, how many sentences should readers plan to read fluently? So long as men can breathe, or eyes can see, So long lives this, and this gives life to thee. A. two B. none C. four D. one
asked by Emi 
Math
A box contains 95 pink rubber bands and 90 brown rubber bands. You select a rubber band at random from the box. Find each probability. Write the probability as a fraction in simplest form. a. Find the theoretical probability of selecting a pink rubber
asked by Chloé 
english
Which of the following lines from the story is an example of indirect characterization? A. “The old lady had not heard him; only Chig had heard.” B. “She smiled. She had all her teeth, but they were too perfect to be her own.” C. “They had been
asked by Emi 
science
Dust mites are microscopic bugs that are too small to see with a dissecting microscope. To see the details of a dust mite’s skin, which of the following microscopes would you use? A. dissecting microscope B. compound microscope C. transmission electron
asked by I NEED HELP FAST!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! 
Math
In Magic Diamond use numbers 112. Each row must equal the same sum. # # # # # # # # # # # #
asked by Dam 
Physics
. How much heat does it take to melt 2.5 kg of lead when it is at its melting point (m.p. = 327.5°C; Hf = 2.04 × 104 J/kg)? 6.2 × 101 J 8.2 × 103 J 5.1 × 104 J 1.7 × 107 J
asked by PeterPiperPAPP 
Math
The columbia icefield is located between banff and jasper in Alberta. It covers an area of more than 300 km squared and has ice that is up to 365 m thick in some places. How can studying this icefield give scientist information on climate patterns
asked by Annadona 
social Studies! MRS.SUE!?
1. What effect did the suffrage movement have on women in South Carolina? A. women gained the right to work outside of the home B. women gained the right to belong to political parties C. women gained the right to attend public schools D. women gained the
asked by what 
MATH
Please help me solve this problem. My grandfather has a big collection of silver dollars and 50 cents pieces. He promised to give one fourth of his collection to the first of his grandchildren, who can figure out the total value of his coins. The only
asked by Hect01 
life orentation
list and discuss any four factors that could threaten or limited the core functions of the media
asked by lethiwe 
science
What is the function of the nucleus in a cell? A. The nucleus controls the cell’s activity. B. The nucleus identifies a cell as belonging to a plant. C. The nucleus determines what substances enter and leave the cell. D. The nucleus can be seen under a
asked by I NEED HELP FAST!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! 
literature
2. Studying the plot elements in "A Pair of Silk Stockings," you might reasonably conclude that the essence of her story A. is found in its sensual descriptions. B. reflects the despair of daily life. C. emphasizes the hardship of poverty. D. is identical
asked by ezra 
social studies
During the War of 1812 The Americans won a victory at a)Detroit b) The Thames c) Quebec Answer: B The English were able to land an army and capture the city of a) Washington b) Baltimore c) New York Answer: A "The Star Spangled Banner" was written during
asked by sue 
Social Studies
Farmers who farm in the northern IndoGangetic plain in South Asia rely more massively on A. drenching rain brought by cool air B. essential moisture brought by monsoons C. water carried by rivers which comes from the Himalayas. C?
asked by Anonymous 
language and early literacy
Describe the factors that cause diversity in language.Give example
asked by bobote 
english
should african slaughter rituals be aloowed in the suburbs?
asked by mbali 
science
which of the following is not part of cell theory? A. cells are the building blocks of life B. all living things are made up of cells C. all cells are created from other cells though cell division
asked by I NEED HELP FAST!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! 
Algebra
For their homecoming parade the students of UMath have created a colorful banner, 53 meters in length, that is made of two pieces of parachute material. The short piece is 19 meters shorter then the long piece. Find the Length of each piece. Length of the
asked by Christopher 
chemistry
200cm^3 of 1.0 mol dm^3 sulphuric acid,H2SO4 is poured into a 250 cm^3 volumetric flask.Distilled water is then added to make 250 cm^3 of solution. (a)What is the molarity of the diluted acid solution? (b)What is the volume of 1.6 mol dm^3 sodium
asked by mandy 
math
each of two urns contains green balls and red balls. urn I contains 8 green balls and 12 red balls. Urn II contains 5 green balls and 8 red balls. if a ball is drawn from each urn, what is P(red and red)? A. 79/65 B. 24/65 C. 20/33 D. 2/13
asked by help please 
chemistry
A cylinder contains 40 g of HE, 56 g of N2, and 40 g of Ar. How many moles of each gas are in the mixture?
asked by mary 
Algebra
There are three times as many people in the psychology class as in the art history class. there are 16 more people in the algebra class then the art history class The total enrollment of the three classes is 86. How many students are enrolled in each
asked by Christopher 
Calculus
SOS...help!!! please email me at 969e221 at g mail. com here is the question: Find the trapezoid of largest area that can be inscribed in the upper half of the ellipse x2/9 + y2/4 = 1 where the lower base of the trapezoid is on the xaxis and is 6 units
asked by Buster 
social studies
1. During the War of 1812, the Americans were fighting for a) selfgovernment b) freedom of the seas c) freedom from England Answer is B 2. The Americans were most successful on a) sea b) Lake Champlain and Lake Erie c) on land Answer: B 3. The English
asked by Please Help 
Language Check Ms.Sue
Choose correct capitalization, punctuation, and spelling. 1. Thank you for you're prompt response to my request information about traveling to Australia. A. Thank you for youre B. Thank you for youre' C. Thank you for your D. Thank you for your' E. Correct
asked by Sarah 
Physics
On a roller coaster ride the cart is 250 kg. Initially, the cart is traveling at 5 m/s at the upper level, and then 25 once it reaches the flat lower level that is 8 m off the ground. How high up is the upper level?
asked by Eiban 
Math
Jamal invested $5000.00 in an account that earns 2.50% simple interest per annum for a term of 10 years. A.) How much interest will he earn? B.) How much will his investment be worth at the end of the term?
asked by Kagney 
science
What is the function of the nucleus in a cell? A. The nucleus controls the cell’s activity. B. The nucleus identifies a cell as belonging to a plant. C. The nucleus determines what substances enter and leave the cell. D. The nucleus can be seen under a
asked by I NEED HELP FAST!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! 
Math (Quadratic Equations)
A field is bound on one side by a river. A farmer wants to enclose the other three sides of the field with fence in order to create a rectangular plot of land for his cows. If the farmer has 400m of fence to work with, determine the maximum possible area
asked by Sarah 
physics
A 60.0 kg box is lifted straight upward by a rope, a distance of 10.0 meters, at constant speed. How much power is required to complete this task in 5.00 seconds?
asked by Anonymous 
life orientation
list and discuss four factors that could threaten or limit the core functions of the media
asked by zaksha 
computer assisted legal research part 2
There seems to be 2 answers to #11 of exam #00803701. Not sure which one to use
asked by catherine 
Algebra help please!
Write the sum of the two vectors as an ordered pair. (6,5) and (3,3) A. (,2) B. (6,1) C. (1,6) D. (2,9)
asked by Kirston 
physics
A 70 kg man holding a 0 . 857 kg ball stands on a frozen pond next to a wall. He throws the ball at the wall with a speed of 11 . 9 m / s (relative to the ground) and then catches the ball after it rebounds from the wall. How fast is he moving after he
asked by nic 
(11) Chemistry  Science (Dr. Bob222)
In the following hypothetical reaction A + B → C + D, the equilibrium constant, Keq is less than 1.0 at 25°C and decreases by 35% on changing the temperature to 45°C. What must be true according to this information? A. The ΔH° for the reaction is
asked by Ana 
CHEMISTRY HELP !!!!
Al3+ is reduced to Al(s) at an electrode. If a current of 2.75 ampere is passed for 36 hours, what mass of aluminum is deposited at the electrode? Assume 100% current efficiency. a. 9.2 x 10–3 g b. 3.3 x 101 g c. 9.9 x 101 g d. 1.0 x 102 g e. 3.0 x 102 g
asked by Anonymous 
CHHS
A a ferris wheel has a diameter of 100ft. The passengers ride in cars that make 5 revolutions in 7.5 minutes. Approximately how far does a car on the Ferris wheel travel in 1 minute
asked by TJ 
Math
A man owns a rectangular piece of land. The land is divided into four rectangular pieces, known as Region A, Region B, Region C, and Region D. One day his daughter, Nancy, asked him, what is the area of our land? The father replied: I will only tell you
asked by Josh 
social studies
THE WAR OF 1812 After capturing Washington, the British attacked what city, which they failed to capture? New York, Statton Island
asked by JUST ONE QUESTION 
chemistry
.256g unknown acid is titrated with .12M NaOH. It requires 34.8ml of base to reach the equivalence point. What is the molar mass of the acid?
asked by harley 
psychoanalyst
This passage is mostly about:
asked by Jenny 
Social Studies
8. Which of the following statements about the ancestry of most of the people of Central America is most accurate? (2 points) People in Central America are of African ancestry. People in Central America are of mestizo ancestry. People in Central America
asked by Steve 
chemistry
Solution A:50cm^3 of 1.0mol dm^3 hydrochloric acid,HCl Solution B:10cm^3 of 2.0mol dm^3 hydrochloric acid,HCl (a)Calculate the number of moles of hydrochloric acid,HCL in each solution. (b)Solution A and B are mixed together. (i)Calculate the number of
asked by mandy 
Social Studies
How do monsoon winds impact South Asia? A. Rain is carried from the Arabian sea to India from JuneSeptember. B. Rain is carried from the Bay of Bengal to Bangladesh and India. C. Rain is carried from the Arabian Sea to Pakistan and Afghanistan. I think A,
asked by Anonymous 
social studies
How did the Fugitive Slave Act and the KansasNebraska Act further divide the North and South? What role did the concept of popular sovereignty play in these conflicts? Do you think there was any way to avoid the violence that came out of this era?
asked by nickolas 
chemistry
A student dissolved 3.65 g of hydrogen chloride gas,HCL in water to make 1.0dm^3 of solution.Calculate the volume of a 0.1 mol dm^3 barium hydroxide,Ba(OH)2 solution required to completely neutralise 25.0 cm^3 of the acid solution.(RAM:H,1;CL,35.5)
asked by mandy 
science
Pennsylvania have made their way down into the Chesapeake bay in Maryland. This is an example of _____pollution?
asked by susanne 
CHEMISTRY HELP !!!!
If a nucleus undergoes beta particle emission a. its atomic number decreases by four and its mass number decreases by two. b. its atomic number decreases by two and its mass number decreases by four. c. its atomic number increases by one and its mass
asked by Kimberly :( 
Math 12
A bag contains 5 red, 3 green, and 6 marbles. If a child grabs three marbles, find P(at least 2 blue marbles).
asked by Leah 
math
Diane plans to drive 30 miles to her interview. If she averages 25 miles per hour, how long will it take her to get there? Answers: (A) 50 minutes (B) 55 minutes (C) 1 hour and 12 minutes (D) 1 hour and 20 minutes
asked by Lakota 
Social Studies
1. During the War of 1812, the Americans were fighting for a) selfgovernment b) freedom of the seas c) freedom from England Answer is B 2. The Americans were most successful on a) sea b) Lake Champlain and Lake Erie c) on land Answer: B 3. The English
asked by Anonymous 
chemistry pls help me asap
100cm^3 of a sodium hydroxide,NaOH solution contains 4.0g of solid sodium hydroxide,NaOH.40 cm^3 of phosphoric acid,H3PO4 is needed to neutralise 40cm^3 of the alkali.(RAM:H,1;O,16;Na,23;P,31) (a)Calculate the molarity of the sodium hydroxide,NaOH
asked by mandy 
math
Bay Area Rental Cars charges $18 a day and $.14 per mile for renting a car. You rented a car for 4 days and drove 313 miles. Find your total cost for renting the car.
asked by brianne 
Chemistry
Calculate the Molarity of the solution that contains 43.5 grams of K2SO4 in a total volume of 250ml.
asked by Felicia 
Science
Define " force ". State the correct units for measuring force.
asked by Alana 
Math
A glass held 2/5 cup of water, Carlo poured out 3/8 cup, how much is left?
asked by James 
Algebra
eight times the difference of a number and three is equal to six times the sum of a number and one 8(x+3)=6(x+1) is this right?
asked by Christopher 
Statistics
Problem: you work for a manufacturer of tires (average life of your tires is 60.000 km with a standard deviation of 8.000 km). A supplier offers you new material that he says will increase by 10% the mileage of the tires you produce. A) What are the
asked by Anastasia 
science
My answers are in the brackets Nitrogen is cycled through an ecosystem by both plants and ?(animals). Decomposers break down dead organisms and their waste products to release ?(ammonia) in a process called ?(nitrification) These ?(decomposers) can then be
asked by Please Help 
science
My answers are in the brackets Nitrogen is cycled through an ecosystem by both plants and ?(animals). Decomposers break down dead organisms and their waste products to release ?(ammonia) in a process called ?(nitrification) These ?(decomposers) can then be
asked by PLEASE CHECK ANSWERS 
science
4. How would increasing the proportion of land (sand) to water affect the amount of water vapor released?
asked by ashford university 
Chemistry
Consider an aqueous solution that contains 22 % (by mass) of a hypothetical solute Z. The formula weight of the solute Z is 215.2. The density of the solution is observed to be 1.12 g/mL. What is the molarity of Z in this solution? Answer in grams
asked by Susan 
Language Check 2 Ms.Sue
Correct capitalization, punctuation, and spelling. 1. We keep a variety of emergency equipment in the trunk of our car, a firstaid kit, jumper cables, a blanket, a flashlight, and road flares. A. car a firstaid B. car: a firstaid C. car; a firstaid D.
asked by Sarah 
Geometry
Kevin has a salt water aquarium.As Shown below in the shape of a rectangular prism. ( base 36 in, width 18in,height 20 in) . When a rock is submerged into the aquarium the water level rises 0.25 inches. What is the voulume of the rock ?
asked by Eva 
Calculus
How much should be deposited into an account today if it is to accumulate to $32400 in 30 years if the account bears interest at 8.01% compounded monthly? I did A = 32400(1 + 0.0801/12)^(12*30) = $355,375, but that's wrong...
asked by Ann 
Physics
A 3.0 kg block is moved up a 37 incline under a constant horizontal force of 40.0 N. The coefficient of friction is 0.10 and the block is displaced 2.0 m up the incline. Calculate the change in the kinetic energy of the block.
asked by Andrew 
Physics
A 3.0 kg block is moved up a 37 degree incline under a constant horizontal force of 40.0 N. The coefficient of friction is 0.10 and the block is displaced 2.0 m up the incline. Calculate the change in the kinetic energy of the block.
asked by Andrew 
Math
Triangle ABC is an isosceles triangle with angle A= 40 degrees. Give three possible values for angle B
asked by Mackenzie 
MATH
LIGHT TRAVES AT 186,300 MILES PER SECOND. IF IT TAKES 8.32 MINUTES FOR LIGHT TO TRAVEL TO EARTH FROM THE SUN, HOW FAR AWAY FROM EARTH IS THE SUN. WRITE YOUR ANSWER IN SCIENTIFIC NOTATION.
asked by JOHN DUNN 
calculus help
Find the derivative of the function. y = integral from cosx to sinx (ln(8+3v)) dv lower limit = cosx upper limit = sinx y'(x) = ????
asked by Tim 
Algebra
Write the other number or expression in terms of the given variable. A 3 foot board is cut into two pieces. If one piece measures x write the expression for the length of the other piece. Ok now I know the first term is 2x correct? where do I go from here?
asked by Christopher 
Science
Three identical 10 micro farad capacitors are connected in series across a 100V DC supply...calculate the total charge
asked by Mohau Mercy 
Social Studies
After capturing Washington, the British attacked what city, which they failed to capture? New York, Statton Island
asked by Anonymous 
science
My answers are in the brackets Nitrogen is cycled through an ecosystem by both plants and ?(animals). Decomposers break down dead organisms and their waste products to release ?(ammonia) in a process called ?(nitrification) These ?(decomposers) can then be
asked by sue 
chemistry
The volume of 0.15 mol dm ^3 sulphuric acid,H2SO4 required to completely neutralise 25.0cm^3 of potassium hydroxide,KOH solution.
asked by mandy 
ALG. ASAP
The orbit of comet HaleBopp is an ellipse as shown below. The units are astronomical units (abbreviated AU). 1 AU ≈ 92,960,000 mi. (a) Find an equation in standard form of the orbit of the comet. (Enter your answer in terms of AU.) (b) The distance from
asked by K ASAP 
Geometry
Which two dimensional shape can be rotated to create this solid subject?
asked by Malinda 
Calculus (lim)
consider the statement lim x³6x²+11x6 / x1 = 2 x>1 Using the definition of the limit, state what must be true for the above limit to hold, that is, for every ..., there is ..., so that.... Use a specific function and limit not just f and L. Verify
asked by Tommy feels dumb 
chemistry
18.6 g KOH is neutralized by 58.4 ml of unknown acid find the molarity of the acid.
asked by harley 
tech
live life to the fullest what are some symbols/pictures that represent "living life to the fullest?
asked by yasminb 
chemistry
50.0cm^3 of 2.0 mol dm^3 aluminium sulphate,Al2(SO4)3 solution Calculate the number of moles of ions.
asked by mandy 
math
The length of the tropical year us 365.24220 days, as compared to the length of 365.2425 days used by the Gregorian calendar. How many years will it take for this difference to amount to 8 days? Round to the nearest year.
asked by brianne 
statistics
A quality supervisor for a factory that makes cell phone cases examines a sample of 46 cases. She finds that 8 cases are the wrong size. Which is the best prediction of the number of cases that will be the wrong size in a shipment of 3,000? A.)410 B.)475
asked by Kimberly 
english
As a nightangle writ a diary entry highlighting her fears and analyzing her reasons for failures
asked by jhanvi 
Math
The table shows the number of people switching to a new telecommunications company over a 7day period in August. Day=number of people 1=10 2=17 3=37 4=79 5=106 6=231 7=500 Using this estimate how many people will switch on august 31st. * it's an
asked by Marina 
math
The length of the tropical year us 365.24220 days, as compared to the length of 365.2425 days used by the Gregorian calendar. How many years will it take for this difference to amount to 8 days? Round to the nearest year.
asked by jennu 
Chemistry
What determines whether one metal will replace another metal from a compound in a singlereplacement reaction?
asked by Angela 
Algebra
Melinda earns $152 less per week then Barbra. The combined income of these two people is $400 per week. How much per week does each person earn. I need some help on this problem If im correct I multiply 2 times $152 then divide by 400?
asked by Christopher 
health care
Is an example of the social Constructionism with an elderly person, a caregiver Thank you
asked by mary 
Math
Circle the angle(s) that could never be the smallest angle of a triangle. 8 degrees 47 degrees 88 degrees 91 degrees
asked by Mackenzie 
calculus
Determine whether the given series converges or diverges, and find the sum if it converges. I don't understand, help!! Thnx! 1) 20+5+(5/4)+(5/16)+...
asked by Sam 
Math 12
In Lotto 649, find the probability that: a) You have all six correct numbers. b) You have three correct numbers.
asked by Leah 
Math
1. Historically,40% of the adopted dogs rescued spend an average of 8 days in a kennel costing $10 a day. Puppies100 Dogs650
asked by Ryan Dee 
Calculus Help Please Urgent!!!
Use the Midpoint Rule with the given value of n to approximate the integral. Round the answer to four decimal places. integral from o to pi/2 (2cos^3(x))dx , n = 4 M4 = ?????? Thanks!!!
asked by Susan 
Math Question Please Help
Two more students like math than science Half the number of students who like science like history. The number of student who like reading equals the number who like math and science combined. Two students like History. How many children (12) like each
asked by Kathy 
math
Ricki Cohn Encyclopedia sales Commission rate: 11% Month’s sales: $2,550 What is the monthly commission
asked by damiyona 
Math
A primary researcher is paid 80,000, two associates each are paid 45,000 a year. Each associate is responsibility for supervising up to eight sites. PTResearch assistants(2) are each paid 6,000 and are only able to support three sites each. The center
asked by Ryan Dee 
ALG timed
Find the equation of the circle that passes through the point P(1, 7) and whose center is the point C(4, 3). Then sketch its graph.
asked by K ASAP 
chemistry
Two solutions were prepared. The first was a 0.672 M solution of aluminum hydroxide and the second was a 0.405 M sulfuric acid solution. 1.) If a total of 500 mL of aluminum hydroxide solution was prepared, how many grams of the solute (AL(OH)3) would have
asked by Jordan 
Math
How would I answer this question? 7 is subtracted from onethird of r.
asked by Gracie 
chemistry
If 15.0 grams of Iron (III) oxide reacts with 25.0 grams of Strontium phosphate, how many grans of Iron (III) phosphate will be produced?
asked by Anonymous 
Trig
Use the given information to evaluate sin (a+b). Exact answers only. No decimals. Tan a = 4/3, cos b ='12/13; neither a nor b are in quadrant III.
asked by Anonymous 
Trig
Use the given information to evaluate sin (ab). Exact answers. No decimals. Sin a = 7/25, cot b = 8/15; neither a nor b are in quadrant III.
asked by Matthew 
Trig
Evaluate tan(ab). No decimals. Only exact answer. Sin a = 7/25, cot b = 8/15 neither a nor b are in quadrant IV.
asked by Timothy Johnson 
precalculus sem 1
for the polynomial shown below, find (1) f(x)=3x^4x^2+4x2
asked by Anonymous 
Science
What determines whether one metal will replace another metal from a compound in a singlereplacement reaction?
asked by Angela 
finance
A bond that has a $ 1,000 par value (face value) and a contract or coupon interest rate of 10.5%. The bonds have a current market value of$ 1,124 and will mature in 10 years. The firm's marginal tax rate is 34%
asked by billy 
Algebra
The length of a rectangular piece of steel in a bridge is 3 meters less then double the width. The perimeter of the piece of steel is 24 meters Find the length and width of the piece of steel. l=32w? is part of the formula?
asked by Christopher 
geometry
Bob's Barricades rents orange plastic cones to use as barricades in road construction. Each cone is 24 inches high with a diameter of 14 inches. A gallon of orange paint will cover approximately 400 square feet. About how many whole gallons of paint will
asked by Anonymous 
Algebra 2 help!!!
Which system is represented by the matrix equation below? [7 2] [x] [14] [15 8] [y] = [8]
asked by Kirston 
MATH!!!!!!!
If theres 225 students in my grade and the requirement to get into the principal list is top 5%, how many students are in the principal list?
asked by Lauren 
Math 12
One hundred tickets are sold for a raffle. Three prizes are awarded. What is the probability that Andy wins first prize, Brianna wins second, and Cam wins third? What is the probability that Andy, Brianna, and Cam are the three winners (not necessarily in
asked by Leah 
Math
Circle the angle(s) that could never be the smallest angle of a triangle. 8 degrees 47 degrees 88 degrees 91 degrees
asked by Sandy 
Math 12
Five cards are dealt from a shuffled deck of 52. Find the probability that: a) The hand has 3 spades and 2 hearts. b) The hand has 2 aces, 2 kings, and one other card.
asked by Leah 
Grammar: PLEASE HELP
What's the difference among a simple sentence, complex, compound, and compoundcomplex. I always have a difficult time knowing which is which, except simple sentence of course, that one is easy
asked by Ellie 
Math
Your uncle has 36 coins in nickels and quarters. The value of his nickels is 1/15 of the value of his quarters. Find the number of nickels. Please show progress in answer.
asked by Anonymous 
Algebra
The length of a rectangular Garden is 40 yards longer then double the width The perimeter of the garden is 470 yards. find length and width of the Garden. L=2W+40 2W+2(2W+40=80 Kinda stuck here.
asked by Christopher 
MATH
One particle(atom) of gold weight 197 atomic mass units. One atomic mass unit is approximately 1.6601 x 10^24 grams. How many particles of gold are there in 197 grams of gold? Use scientific notation where and when appropriate.
asked by JOHN DUNN 
statistics
A student claims the average amount of time spent studying for an exam is less than or equal to 120 minutes. A random sample of 101 students is drawn from a normal distribution. The sample mean is 140 with a sample standard deviation of 20. Test the claim
asked by Matt 
Statistics
The Jefferson valley bank claims that the variation of their wait time is less when using a single line that feeds three tellers as opposed to having threes peerage lines. Test the claim that the standard deviation for wait time is less than 1.9 minutes
asked by Danielle 
Math
What amount should be accepted as equivalent, 60 days before an obligation of $1480 is due, if money can earn 6 3/4%?
asked by Anonymous 
calculus
Compute the limit of the partial sums to determine whether the series converges or diverges. 1)6 + 4  4 + 4  4 + 4  4 +...
asked by Diana 
science
gravitational force decreases with distance. what does this mean for a space traveler who leaves earth in a spaceship?
asked by kev 
Physics
A cannonball is dropped overboard from a boat. The cannonball sinks toward the bottom of the sea. The mass of the seawater displaced by the cannonball is exactly 2/3 the mass of the cannonball. Find the velocity of the cannonball after 10 seconds after
asked by Wong 
math
Jen and jacob want to put a cement deck around their pool. if the cement cost $4.75 per square foot, how much is the cost of the deck? round to the nearest hundreth.
asked by Anonymous 
math
Vanessa typically works 8 hours per day in a normal 5 day work week. Last week however vanessa had to take 90 minutss off on tuesday 45 minutes off on Thursday and she left rwo and a half hours early on friday how many hours did vanessa work last week
asked by Anonymous 
Math Problem
An organization rents a 500 square foot office at a cost of $10 per square foot per year. How much must they pay
asked by Ryan Dee 
math
A company feeds 15000 people per day for one month at a cost of 3.95 but the next month they will increase the number of people by 30%. what is the total?
asked by Ryan Dee 
Word Problem
Salaries are: 48,000, 30,000, 24,000 per year. the company spends an additional 25% on health insurance for each person annually. How to I calculate the totals?
asked by Ryan Dee 
math
The fabric mart had costs of goods sold at $844,000 for the year
asked by teresa 
algebra
Writ the equation in Logarithm form 25=(1/5)^2 a=b^c
asked by Mary Ann 
Algebra
four added to one seventh of a number answer: 4+1/7x is this correct? or is it 1/7+4x?
asked by Christopher 
Phys
Centripetal force: a race car driver wants to stay as straight as possible around the curves in the race. What should happen to his radius, force and velocity?
asked by Kate 
math
6(ab)  5(2a + 4b)
asked by mark reynalds 
economics
What are the costs and consequences of providibg the subsidies and welfare?
asked by juddy 
Physics
Need help with a question! I worked out A (assuming its right) which leads to B. A) C=1.03x10^4 uF, A=2.5mm^2, d=0.75um B) If the voltage across the membrane is delta V= 75mV, what is the charge +_Q on each surface A? thanks!
asked by Son 
Math homework help
Use half angle identities to find exact value. Given tan theta = sqrt 2 / 2 and theta lies in quadrant IV, find cos theta / 2.
asked by Anonymous 
Maths
how do you find the hypotenuse of a triangle
asked by Lyn 
precal
A quadratic function has xintercepts 2 and 6 and its vertex is (4, 8). What is the corresponding quadratic expression?
asked by kodie 
economics
What are the costs abd consequences of providing the sudsidies and welfare
asked by juddy 
Java
What would happen if I did not give a access specifier. Would the class method or attribute be accessible to all other classes?
asked by jake 
math
if you have a jar filled with candy and every time you take one candy out you put the wrapper back into the jar. the wrapper takes 10% of the volume of a piece of candy. How many times will you have to fill the jar before half the jar is filled with candy
asked by Lillian 
Physics
A girl throws a ball at a fence 10m away. The ball is 2m from the ground when it leaves her hand with an initial velocity of v=8 i+8 j m/s. When the ball hits the fence its horizontal velocity component is reversed (the vertical velocity component is
asked by Jason 
Alg.
Find the coordinates of the vertex and the equation of the axis of symmetry of the parabola given by the equation. y = − 1/7 x^2 + x − 3 and graph it
asked by K ASAP 
math
A temperature measurement from earths stratosphere is taken as 70 degree Fahrenheit. The temperature on the earths surface below is found to be 41 degrees Fahrenheit. Find the difference between the surface temperature reading and the stratosphere
asked by brianne 
math
What is necessary to accelerate a 25 kg mass at m/sec?
asked by Ashlei 
Math
Problem: The 52 students from Babcock school were divided into 9 squads for the Coast Trip . There are 25 parents including teachers attending. If we need to purchase 2 cookies for each person to eat for 2 nights, how many dozen cookies will wee need to
asked by Anonymous 
Help w/ Math PLS
If a, b, and c are three integers in geometric progression, prove that the number a^2+b^2+c^2 is exactly divisible by the number a+b+c.
asked by Lina 
Game Development
In relation to game AI what is a flocking behaviour? Give an example of flocking behaviour in a game.
asked by Jason 
Trig
Simplify each expression using fundamental identities. 1. Sin theta cot theta 2. 1sin^2 theta / cos theta
asked by Anonymous 
math
Problem Solving and Explain. The 52 students from Babcock school were divided into 9 squads for the Coast Trip . There are 25 parents including teachers attending. If we need to purchase 2 cookies for each person to eat for 2 nights, how many dozen cookies
asked by Anonymous 
algebra
solve each exponential equation. Given the value for x 8^x=1/64 3^x=6 Can someone show me how to preform these. I would greatly appreciate it Thank You
asked by Mary 
Maths
Y=3x1 X^2+y^2=12 Then solving with quadratic equation
asked by Amy 
HELP PLZ
What determines whether one metal will replace another metal from a compound in a singlereplacement reaction?
asked by Angela 
calculus
Find the interval of convergence of the series. ∑(sinx/10)^n
asked by KEvin 
Calculus Riemann sum definition etc
I am totally stumped... PLEASE if anyone can help we are going nuts...lol Use the Rieman sum definition of the definite integral to show that 3¡ò(there is a little "b" at top and little "a" at bottom 3¡ò x©÷dx = b©øa©ø Here,for simplicity we
asked by Ellen B 
Maths
x+y=5 y=2x^2x13
asked by Becky 
social studies
After capturing Washington, the British attacked what city, which they failed to capture? New York, Statton Island
asked by Anonymous 
Algebra 1
Solve by completing the square. 1. x^2  5x = 5
asked by Victoria 
Calculus, Riemann
IF ANYONE CAN PLEAAAASEEEE HELP ME Use the Riemann sum definition of the definite integral to show that b 3 ¡ò x©÷dx  b©ø a©ø a Here, for simplicity, we assume b > a > 0. Be sure to clearly specify your mesh/grid xi, , and your choice of sample
asked by Ellen D 
Calculus
HELP....last question SOS HELP Consider the statement lim X>1 X©ø6X©÷+11X6 / x1 = 2 USING THE DEFINITIONS OF THE LIMIT STATE WHAT MUST BE TRUE FOR THE ABOVE LIMIT TO HOLD, THAT IS, FOR EVERY ¡¦, THERE IS ..., SO THAT¡¦. Use a specific function
asked by Ellen D 
Algebra
The length of a rectangular Garden is 40 yards longer then double the width The perimeter of the garden is 470 yards. find length and width of the Garden. L=2W+40 2W+2(2W+40=80 Am I starting off right?
asked by Christopher 
physics
3813.75 Joules of work is being done on a 150 lb object while it is moved 75 ft across a horizontal plane, what is the final velocity if the coefficient of kinetic friction is 0.25 and the initial velocity is 1 ft / s?
asked by Adam 
Physics
3813.75 Joules of work is being done on a 150 lb object while it is moved 75 ft across a horizontal plane, what is the final velocity if the coefficient of kinetic friction is 0.25 and the initial velocity is 1 ft / s?
asked by Adam  Require some Help Please 
chemistry
20.70 ml of .42 M HClO4 is required to neutralize .966g of an unknown base. Find the molar mass of the base .
asked by Cristina 
Trig
Use the given information to evaluate sin (a+b). Exact answers only. No decimals. Tan a = 4/3, cos b ='12/13; neither a nor b are in quadrant III.
asked by Jason 
Trig
Use the given information to evaluate sin (ab). Exact answers. No decimals. Sin a = 7/25, cot b = 8/15; neither a nor b are in quadrant III.
asked by Anonymous 
Trig
Evaluate tan(ab). No decimals. Only exact answer. Sin a = 7/25, cot b = 8/15 neither a nor b are in quadrant IV.
asked by Anonymous 
columbus
there are twice as many boys in classas there are girls.are there more girls or boys in class? there are 12 boys in class. how many girls are there?
asked by isha