Questions Asked on
February 22, 2016

Science
Mohan travels at 20m/s from home and returns back at 25m/s.Find his average velocity for the entire journey?
asked by Shaan 
Consumer math
Could someone please check my answers? Secured Credit APR Excellent 4.75% Good 5.00% Average 5.85% Fair 6.40% Poor 7.50%  Unsecured Credit APR Excellent 5.50% Good 5.90% Average 6.75% Fair 7.25% Poor 8.40%
asked by Nikki 
Algebra
A page should have perimeter of 42 inches. The printing area within the page would be determined by top and bottom margins of 1 inch from each side, and the left and right margins of 1.5 inches from each side. What should be the overall dimensions of the
asked by fiona 
language arts
Based on the passage, the reader can infer that some Haida families lived in homes that
asked by jaquan 
math
in greatest to least what is 0.1 0.125 and 0.12? i cant figure it out i think you need to convert to fractions im just not sure.
asked by catherine 
Math
you can draw a square inside another square by placing each vertex of the inner square on one side of the outer square. The large square in this diagram has side length 10 units a) Determine the area of the inscribed square as a function of x ( X is from
asked by Annoym 
math
A rectangle is 12 feet long and 5 feet wide. If the length of the rectangle is increased by 25% and the width is decreased by 20%, what is the change in the area of the rectangle?
asked by madisyn 
math
Children are usually ready to understand the concept of length measurement if:
asked by Ty 
math
Consider the series 1+(2+3)+(4+5+6)+(7+8+9+10)+(11+12+13+14+15)+.... (a) find an expression for the ith term in the rth bracket. (b) Given that 39×79 is the sum of all the numbers in the first 6 bracket in the series, find the value of K.
asked by obeng manu 
Math
A kite flying at a height of 55m is attached to a string which makes an angle of 55 degrees with the horizontal. What is the length of the string
asked by Shredder 
math
A ship leaves POrt P and sails 28km away on bearing of 70 degrees to POrt Q. The ship then turns on a bearing of 160 degrees and sails 21km to POrt R. Find angle PQR, calculate the distance PR, Determine the bearing of R from P. angle PQR = 180 degrees 
asked by Pamela 
Language Arts
1.Which Idea Is Conveyed In Both "Dust Of Snow" and Who Knows If The Moon's A.Nature can be playful (MY ANSWER) B.Nature can be harsh C.Nature can be annoying D.Nature can be mysterious 2.To Which Sense Do Both "Who Knows If The Moon's" and "Dust Of Snow
asked by LOVE 
math
which expression represents 5 less than y? A. y5 B. 5y C. y/5 D. 5y1
asked by Sam 
Science
In pea plants, yellow seeds are dominant over green seeds. Round peas are dominant over wrinkled peas. Cross two pea plants that are heyerozygous for both traits.
asked by Anonymous 
MUSIC
1. What is the difference between composition and improvisation? Choose the correct. A. Composition is the art of making music spontaneously, while improvisations are carefully planned. B. Improvisation is the art of making music spontaneously, while
asked by Shelby 
CHEMISTRY
find the concentrations of H+, HCO3, CO3 2 in a 0.025M in H2CO3 solutions
asked by ADAM 
Chemistry1
The questions asks to write a word equation and a balanced chemical equation for a reaction between aqueous copper (ii) sulfate and solid iron. Assume that iron forms the Fe2+ ion.) Include proper states of matter after each substance (s, l, g, aq). Here
asked by Dina 
Chemistry
Calculate the maximum wavelength of light capable of removing an electron for a hydrogen atom from the energy state of n=4 if it requires an energy of at least 1.36 x10^19 J to do this. I just want to know how to find the second n value so i can solve
asked by Maxx 
science/bioligy
How would a scientist use DNA or protein sequences from three different organisms to construct a cladogram? need help!!! how do I do this??
asked by Anonymous 
physics
Drag race tires in contact with an asphalt surface probably have one of the higher coefficients of static friction in the everyday world. Assuming a constant acceleration and no slipping of tires estimate the coefficient of static friction for a drag racer
asked by Jade 
Math/Physics
I am unsure of what exactly I am looking for in this problem... One of the highlights of the Calaveras Fair, besides the bullfrog jumping contest, is the watermelon seed spitting contest. The seed spitting is being done in the direction of s ⃗=5i ⃗+j
asked by Wendy 
Biology
1.) Prophage occurs when a.) It bonds with carbohydrates to create a virus b.) Bacteriophage DNA embeds itself in host DNA c.) It detaches from carbohydrates to create a virus. d.) Bacteriophage DNA detatches itself from host DNA. D.
asked by Help! 
Chemistry
Why do warm temperatures speed up the fermentation of milk?
asked by Ali 
history
was the murder of Franz Ferdinand the main cause of ww1 Due on 24/2
asked by hannah 
Language Arts
Underline who or whom to complete each sentence correctly. 1.(Who, Whom) is your favorite athlete? Underline Who 2. I disagree with Alan, (who, whom) likes basketball players Answer: Not Sure 3. About (who, whom) is that article written? Answer: Not Sure
asked by Patrick 
Math
change rises 4 feet in 9 seconds into an equation with two variables and change moves 900 ft every 10 seconds into an equation with two variables
asked by Anonymous 
English
Help, Please! I don't quite understand what is asking in this assignment (Essay) Task: Write an essay that compares Frankenstein and his creation to a modern zombie story with the focus on how a monster might be used as a metaphor for science or scientific
asked by Sarah 
COLLEGE HELP LEASE PLEASE !!!!!!!
Is graduate tuition is tuition for graduate school? I want to become a nurse. Graduate tuition Nursing $828.00 per credit But here the tuition is $17,166 The annual total list price cost to go to Mercy was $31,928 I'm sooo confused please help. Does it
asked by Sarah 
Math
A company reports the following income and expenses for a threemonth period. What is the company's total profit or loss for the three month period? Great Reads Book Store Month Income Expenses  June $12,458  $10,968
asked by Sam 
chemistry
If you begin with 0.030 L of a 2.5M NaOH solution, what concentration will you end up with if you dilute it to 0.050?
asked by Anonymous 
English
Match Each word by definition by filling in the correct letter. Word Bank a.) Wise b.) Deceptively Charming c.) Enormous d.) Passion e.) Sound; fit f.) Competing g.) Aweinspiring h.) Sinister; threatening 1.) Ardor d 2.) Sage a 3.) Contending g? 4.)
asked by Help! 
biochem
why do lipids less dense than proteins? PLEASE HELP ME ANSWER THIS QUESTION. it really makes me wonder because lipids are much larger molecule compare to protein molecule but why protein is denser?
asked by sheila 
Algebra
A cell phone company charges each customer a base rate of $15.00 per month for its services. The company also charges each customer $0.02 per minute used Which algebraic expression represents each customer's monthly charge for m minutes?
asked by Mohmed 
calc 1
f(t)=cos(πt/4) finding velocity i got π/4sin(πt/4) then i had to find velocity after 3 sec which is v'(3)=π/4sin(π(3)/4) = π/4sin(π√2/2) (π) (π√2)/4 x 2 = 1/8√2 ft/s i now have to find when the particle is at rest? how would you do this
asked by feather 
math
Jeff uuses3 fifth_size strips to model 3/5. H3 wants to use tenthSize stripes to model an equivalent fraction. How many tenthtenthsize. Strips will he need
asked by naysha 
calculus
There is a shape first a regular triangle inscribed in a circle, and inscribed in a square, inscribed in a circle, inscribed in a pentagon, etc. so polygon circle polygon circle, etc. the radius of the first circle is 1, find an equation for radius n.
asked by Andre 
science
In the diagram above, the arrows represent momentum. A larger arrow indicates more momentum. Which of the following best describes how the balls will move after ball A collides with ball B? (1 point) 1. Ball A will bounce off of ball B and roll to the
asked by help pls 
Physics
P= 231fraction numerator f t asterisk times l b over denominator s end fraction t= 14.3s W= ?
asked by Brooke 
English
I m silver and exact. I have no preconceptions. Whatever I see I swallow immediately. Just as it is, unmisted by love ordislike. I m not cruel, only truthful.The eye of a llittle god, four cornered.Most of the time I meditate on the opposite wall.It is
asked by sanjay 
Maths
The speed of a falling object is directly proportional to the time for which it falls. The speed after 5 seconds is 49 metres/seconds. What is the speed of an object which falls for 8 seconds?
asked by Taylah 
Math
24 students in class. 3/6 are boys. How many boys are there in this class?
asked by Carter 
Language Arts
In which sentence is the word TRANSLATES used correctly? A. Until Monica translates this message, we won’t be able to understand it.** B. Do you want to go alone when Ron translates across the Atlantic? C. The desk was piled so high with translates,
asked by Laci 
Algebra 2
What is the solution of the equation? Sqrt x + 10^9 = 7 –6 4 14 –8 You are my last hope to getting this.
asked by Sandra 
Maths
The speed of a falling object is directly proportional to the time for which it falls. The speed after 5 seconds is 49 metres/seconds. What is the speed of an object which falls for 8 seconds?
asked by Taylah 
science
Why is fresh water considered a limited resource?
asked by briana 
trigonometry
From a ship, the angle of elevation of the top of the lighthouse is 30 45. What is the horizontal distance of the ship from the lighthouse is 42 meters tall?
asked by Lester 
Math
In ∆ABC, AD median of BC where position vectors of A and D are 3i2j and 3i4j respectively. Find the position vector of centroid G of the ∆ABC.
asked by Rabin 
Algebra
A math class has 7 girls and 5 boys in the seventh grade and 4 girls and 4 boys in the eighth grade. The teacher randomly selects a seventh grader and an eighth grader from the class for a competition. What is the probability that the students she selects
asked by Anesha 
English
Help, Please! I don't quite understand what is asking in this assignment (Essay) Task: Write an essay that compares Frankenstein and his creation to a modern zombie story with the focus on how a monster might be used as a metaphor for science or scientific
asked by Sarah 
csub
an electron of mass 9.11*10^31 kg has an initial speed of 4.00*10^5 m/s. it travels in a straight line and its speed increases 8.00*10^5 m/s in a distance of 5.40 cm assume acceleration is constant determine magnitued of the force exerted on the electron
asked by neyra 
Math
1.Male and female high school students reported how many hours they worked each week in summer jobs. The data is represented in the following box plots: two box plots shown. The top one is labeled Males. Minimum at 1, Q1 at 3, median at 10.5, Q3 at 14,
asked by Caroline 
Math
A bicyclist is traveling at an angular speed of 8pi radians per second. How fast is she traveling in miles per hour if her tires are 28 inches in diameter?
asked by Anonymous 
6th Grade Math
How do you write (1/2) to the 5th power? (Not answered)
asked by PJ Schrammel 
life oriantation
explain in detail five socio economic factors that can negatively influence your study choices and your future carrer
asked by nondumiso 
Social Studies check my answers please
1. Who invented the sewing machine? A.Elias Howe******* B.Robert Fulton C.Samuel Morse D.John Deere Answer A. 2. By 1860 the Midwest and the east were united by a network of_____? A. Roads B. Railroad tracks**** C. Canals D. Steampowered ships Answer B 3.
asked by Sarah W. 
math
the table shows the results of rolling a number cube labeled one through six 50 times. number rolled frequency 1 7 2 9 3 11 4 6 5 9 6 8 what is the experimental property of rolling a 3 A( 0.11 B( 0.22 C( 0.30 D( 0.27
asked by jjiiddss 
Math
write an expression to describe the rule for the pattern. 1, 4, 13, 40, 121, ...
asked by Fred Clay 
English
Where to find Description of the Problem, Population and Context of sex trafficking? Thank you.
asked by Abby 
math
From two holes atop a covered aquarium certain amount of water can evaporate in 6 minutes,however one hole takes 5 minutes more two evaporate the same amount of water than the other.find the time taken by each whole to evaporate the same amount of water?
asked by wanderer 
Health (can someone plz check my answers??)
1. The functions of the respiratory system are... (there are two answers) A. To pump blood to the body B. To deliver oxygen to the body*** C. To remove carbon dioxide from the body*** D. To absorb nutrients 2. The domeshaped muscle that lies below the
asked by Anonymous 
Math
Liz spent 1/10 of her allowance for a gift and 2/5 for a movie ticket.what part of her allowance did she spend in all
asked by Milla 
math
prove that 1tan 4 A by1+tan 4 A =cosA + sinA by cosA  sinA
asked by wanderer 
Language Arts
How is the underlined word used? Write subject, object of preposition or direct object. 1. Who asked for athletic tape? The word Who is underlined 2. That is the gymnast with whom I study. whom is underlined 3. He is an athlete who once tried out for the
asked by Patrick 
chemistry
a.identity the phases that exist in a copper pan containing two iron nails ,a litre of water and four glass marbles b.A beaker contains clear, colourless liquid.How would you determine whether it contained dissolved table salt without tasting it? c.
asked by snothile 
psych
What is the Importance of Research in Behavioral Science?
asked by sade 
math
Tony stark and captain america won the basketball game 40 to 20. Tony says their team scored 2 points for every 1 point the other team scored. Is tony stark correct? Show ur work
asked by hello help please ): 
MATHS
x+y+z=1, x(x)+y(y)+z(z)=35. x(x)(x)+y(y)(y)+z(z)(z)=96 sor.myphonehasno'raise to power'
asked by STEVIUM 
Chemistry
The methane gas is formed by 25% hydrogen in mass which the ratio between the mass of carbon and hydrogen in this gas?
asked by Michael 
Math
A model car has a scale factor of The diameter of a tire on the model is 0.4 inches. What is the diameter of a tire on the actual car?
asked by Dam 
Earth Science
Why are there so many different species on Earth today?
asked by Mike 
social studies
why did farmers sell their land to aristocrats and become tenant farmers in ancient china?
asked by Jerry Jones 
Math
The height of a building in an architectural drawing is 10 in. Its actual height is 150 ft. What is the scale of the drawing
asked by Anonymous 
Calculus
A particle moves along the graph of the function y= 8/3x^(3/2) at the constant rate of 3 units per minute. The particle starts at the point where x = 1 and travels in the direction of increasing x. After one hour, what is the xvalue, rounded to the
asked by Annonymous 
physics
Can the sun expand
asked by TRIX 
math
1.) A 2.5 x 2.5 x 2.5 meter hole was dug for the building's foundation. How many cubic meters of soil were dug? 2.) A cubical container is filled with 15,625 cm3 of sand. How long is each edge of the container? 3.) Kendy has 2 cardboard boxes. One has a
asked by stefi 
oblique triangle
reiny, am i doing it right ?? AB = 12.57(sin 54.23)/sin 57.36 = 12.11
asked by alex 
Math
A diagram measuring 20 cm long is reduced on a copy machine to 15 cm long. If the width of the original copy is 16 cm, what is the width of the reduced copy? Show your work.
asked by Kiana 
Science
A 2 N and 6 N force pull on an object to the right and a 4 N force pulls to the left a o 5 kg object. what is the net force on the object?
asked by Anamaria 
Math
A 3 pack of boxes of juice costs $1.09.A 12 pack of boxes costs $4.39. A case of 24 boxes costs $8.79. Which is the best buy? explain your reasoning.
asked by Anonymous 
math
The length of a shadow of a vertical flag mast 15.45 meters high is 22 meters.find the sun's altitude
asked by akhil 
Math
Write a word problem involving fractions for which you would use the work backward strategy and addition to solve.Include your solution.
asked by Anonymous 
oblique triangle
C = 20.83, A = 103.167, c = 132
asked by alex 
math
Are all relations equations? Is there any instances where a relation is not a relation
asked by anon 
Math
Please explain and show your work 2 3 + 3 4
asked by Student 
math
How do find determine fractions from the greatest to least
asked by Charles 
Math
A model car has a scale factor of 1/64.The diameter of a tire on the model is 0.4 inches. What is the diameter of a tire on the actual car?
asked by Dam 
engineering science
A solid cylinder rolls from rest down an incline 6m high without slipping. calculate the linear velocity at the foot of the plane
asked by David 
Science
Why are there so many different species on earth today?
asked by Sue 
Maths
The width of a rectangle is twothrid of the length.if the perimeter is 192,find the width.
asked by Edeki 
Chemistry
Imagine that you have a pure sample of an unknown compound that you are told is either 2naphthol OR benzoic acid. In the lab, you also have access to samples of pure 2 naphthol and pure benzoic acid. However, both of these pure substances melt at 123
asked by Anonymous 
Math
Evaluate the algebric expression for the given value of the variable. 1046c+3 if c=1 1/2
asked by Amy 
math
the radius r of a sphere is increasing at a rate of 3cm/min. find the rate of change of the area when r=3cm
asked by ruth 
MS.SUE HELP ME PLZ
Millions of African slaves were brought to the Americas through the transatlantic slave trade between the 16th and 19th centuries. The type of slavery that came to exist in the Americas was known as chattel slavery. Chattel slavery is different from other
asked by ashleydawolfy 
CHEMISTRY
I'm showing the procedure of the lab and what was asked. What I have question on is towards the end. Much help would be appreciated a lot!! First I had to balance the equation given to me: 2 Na HCO3 (s) Δ over arrow (produces) Na2 CO3 (s) + CO2 (g) + H2O
asked by Allie 
Language Arts
which is the best definition of the term propaganda? A mission statement Creative advertising A proper code of conduct Representation in a misleading manner•• Correct this if you can
asked by Tj 
Maths
if a clock loses 2.5 minutes in every hour. how many minutes will it lose from 8 to 12
asked by Diana 
Geometry
How do I find the interior angles of an irregular polygon WITH one external angle? I have an image as an example, but Jiskha won't allow internet addresses. What do I do?
asked by anonymous 
Math
What is a counterexample for the conjecture? Conjecture: Any number that is divisible by 4 is also divisible by 8. A. 24 B. 40 C. 12 D. 26 i think D
asked by Anonymous 
math
find dy/dx assuming that y is differentiable with respect to x and x is also differentiable with respect to y. a)xy+x^2y^2=x^3y^3 b)xsiny+ycosx=xy
asked by ruth 
Quantum numbers
Which sets of the wuantum numbers are not allowed in the hydrogen atom? For the sets that are incorrect state what is wrong with them. A) n= 4 l=3 ml=4 B) n= 0 l= 0 ml= 0
asked by Maxx 
math
How long is 9/10 of a meter and also what is 5/8 of a yard?
asked by Patti 
Math
2. Reed is on the ground looking up at Aaron, who is in a hot air balloon that is 140 ft above the ground. Reed and Aaron are 350 feet apart. What angle is Reed looking up at?
asked by Randy 
math, permutations and combination
1. A group of 25 lecturers include six mathematician. In how many ways can a committee of 4 be selected from this group to include at least one mathematician? 2. In how many ways can the first, second and third positions be taken by ten candidates in a
asked by anyanwu nnamdi david 
Algebra
the length of a rectangle is 4cm more than the width of the rectangle. If you increase the length by 8cm and decrease the width by 4cm, the area will remained unchanged. Find the original dimensions
asked by Will 
chemistry
What volume of oxygen is required to completely combust 80 of butane
asked by perpetual 
physics
a wire has a resistance of 6 ohm it is stretched out to a new length which is three times its original length what is the resistance of the longer wire?assume uniform diameter.resistivity and density are constant
asked by mat 
math
A spinner is spun 100 times. It lands on brown 50 times,lands on red 25 times and lands on yellow 25 times.Draw a spinner which will give this theoretical probability distribution. How to draw this spinner? Plz help
asked by Anonymous 
maths
john thinks of 2 different numbers .they have a sum of 12 and a difference of 2 .what are tow numbers?
asked by maryam 
science
What is the pH of a mixture of 5ml of 0.1mol/litre sodium acetate and 4ml of 0.1mol/litre acetic acid? pKa= 4.76.... What is the pH on adding 1ml of 0?1mol/litre HCl to the mixture abouc
asked by hmm 
math
rachel is flying a kite.she lets out 70 yard string. The kite angle of elevation from the ground is 68 degree. How high is the kite?
asked by shania 
Math
A round cake pan that is 2in deep and has a 7in diameter, plus a 6in by 9in rectangular cake pan that is 2in deep. Which of these pans has the larger volume and why?
asked by sam 
Chemistry
Suppose you have 5.00g of powdered magnesium metal, 1.00L of 2.00M potassium nitrate solution, and 1.00L of a 2.00M silver nitrate solution. a) Which one of the solutions will react with the magnesium powder? I don't understand how to go about answering
asked by Feufolia 
math's, combination
A group of 25 lecturers includes six mathematicians. in how many ways can a committee of 4 be selected from this group to include at least one mathematician?
asked by nnamdi 
physical science
a crate of cooldrinks with a mass of 15kg over a smooth horizontal surface by exerting a force of 80N at 30° to the horizontal. Draw a diagram and aswers the following 1. Draw a force diagram showing and labelling all the forces acting on the crate. 2.
asked by Thembelihle Shabangu 
MS. SUE HELP L.A.
Which of the following transitions shows a comparison? a. although b. however c. just as *** d. whereas
asked by Kelsea 
mathematics
I. In how many ways can the first, second and third positions be taken by candidates in a test, assuming that there must be no tie.
asked by nnamdi 
Algebra
James has a 6ft board that is 24 in. wide. He wants to cut it into five pieces to make a small bookshelf with two shelves. The front and back will not be covered. What should be the dimensions of the bookshelf to maximize the volume and use all of the
asked by Julia 
math
Describe the transformation in f(x)= 4x from its linear parent function. is it reflection and rotation?
asked by Anonymous 
math
the green paint jar is 4/8 full. The purple paint jar is 4/6 full. Which paint jar is less full?
asked by L 
Math
I am thinking of a year in the last decade. The sum of the digits in the 1000 and 100 place are 2 less than the sum of the digits in the 10 and 1 place?
asked by Elija 
Biology
MEIOSIS 1)name the process unique to meiosis that occurs during bivalent formation that may increase genetic diversity? 2)how are sister chromatic made and what is the structure that holds them together? 3)what do we call package of genetic information
asked by sk 
Physics
At 6400 km above the earth’s surface, an object weighing 71 N on the surface would weigh only 18 N. Acceleration due to gravity will be about ¼ that on the surface of the earth.
asked by Joaquin 
physics
Two railroad freight cars with masses 110 Mg and 150 Mg approach with equal speeds of 0.310 m/s . They collide, the lighter car rebounding opposite its original direction at 0.270 m/s. Find the velocity of the heavier car after the collision. Assume the
asked by lizbeth 
psychology of human resources
Develop own analogy to illustrate classical conditioning using industry related analogy.in this analogy include all requirements of classical conditioning process.
asked by itsuwe 
mathematics
1. Six people sit at a round table. in how many ways can that be done if two of them must sit next to each other?
asked by nnamdi 
Math
Mark weighs 74 pounds. Together, he and his sister weigh six pounds more than three times the weight of his sister. What is the weight of Mark's sister? would it be 74=3(w)+6
asked by Niasia Hunter 
Spanish
Are all comic strips suppose to be made funny? Because I have to make a comic strip for Spanish but I don't know if I'm suppose to make it funny because My teacher never said anything
asked by Anonymous 
oblique triangle
C = 38.667, b = 9.72, c = 11.8
asked by alex 
gen chem
The rate constant of a first order reaction is 4.60 x 104 s1 at 350 oC. If the activation energy is 104 kJ/mol, calculate the temperature in Kelvin at which its rate constant is 1.80 x 103 s1.
asked by Anonymous 
Philosophy
exercise 5.8 write an informal proof of Premises: LeftOf(a,b)  RightOf(a,b) BackOf(a,b)  ~Leftof(a,b) FrontOf(b,a)  ~RightOf(a,b) SameCol(c,a) & SameRow(c,b) conclusion BackOf(a,b) State if you use proof by cases.
asked by Anna 
Math
The blue print for the Lewis' living room has a scale of 2 inches = 5 feet. The family wants to use a scale of 1 inch = 3 feet. What is the width of the living room on the new blue print?
asked by Peaches 
Prealgebra
1/5(95)2•4+5
asked by Jessy 
Philosophy
Does "identical" mean SameShape or SameSize in Tarski's World?
asked by Anna 
Art
what value does alfred jacob miller promote in his paintings don't give up that ship? Fear and discouragement Anger and resistance Heroic bravery and perseverance •• Peace and contemplation Correct this
asked by Tj 
geography
1) Which phrase best defines diversity? a) a region containing many cities b) special cultural practices unique to one group c) conflict over varying ideas and traditions d) a whole made up of many different parts*** 2) Which of these holidays would the
asked by Pls help me Ms. Sue 
CHEMISTRY
I'm showing the procedure of the lab and what was asked. What I have question on is towards the end. Much help would be appreciated a lot!! First I had to balance the equation given to me: 2 Na HCO3 (s) Δ over arrow (produces) Na2 CO3 (s) + CO2 (g) + H2O
asked by Allie 
Chemistry
When aluminum is reached in a closed container with 8.36 g of O2, how many grams of Aluminum oxide can form
asked by Audrey 
Chemistry
the longest wavelength of light that will cause an electron to be emitted from a metal is 520nm. what is the work function for this metal? (note: the work function is given as kJ/mole of electrons released)
asked by Jen 
Physics
So you chose to use a solid sphere and you give it a speed of 5.9m/s on a flat horizontal surface which is the speed it has when it reaches a 22degree incline. A) How far along the incline will it go?
asked by Sierra 
Math
Andre left his campsite and paddled to a fishing hole 1.5 km downstream. He timed his trip and found that it took him 9 min, His return trip upstream took him 22.5 min. Determine the speeed at which he paddled and the speed of the river? what steps did u
asked by Timmy 
Language arts
which is the best definition of the term ratio? An amount of one thing in relation to another•• A special mathematics number A set length of time A special mathematical tool Correct this
asked by Tj 
Physics
you strike a huge spring at a speed of 30m/s while strapped in a steel cage. When you hit the spring with combined mass of 320kg it is compressed 9.0m. A) What is the spring constant of the spring? B) How long are you in contact with the spring before it
asked by Sierra 
Chem
Interpretation of the data plots consistently show that the freezing points of three solutions are too high. As a result of this "misreading of the data," will the reported molar mass of the solute be too high, too low, or unaffected? Explain please.
asked by Diana 
math
Leah is two years old. She stacked cubes to make the figure shown. If one cube has a length of one centimeter and volume of one cubic centimeter, what's the volume of Leah's figure
asked by Knyla 
science/biology (cladogram)
How would a scientist use DNA or protein sequences from three different organisms to construct a cladogram? don't understand this how do I write this???? help!!!!
asked by e,mma 
Algebra
The amount of money you earn mowing lawns at $15 per lawn? A=$1.50+$.80
asked by Anna 
Science
A plane flies 118 km at 15 degrees south of east and then flies 118 km at 35 degrees west of north. Find the magnitude and direction of the total displacement of the plane?
asked by Edlyn 
math
Darleen gets $10 a week allowance. She walks her neighbor's dog 6 days each week and earns $3 each day. She earns $7 an hour doing odd jobs. Darleen wants to save $15 a week, give $5 a week to charity, and have at least $20 each week to spend. How many
asked by audrey 
Math
find the constant of proportionality of y=4: x=6
asked by Judith 
maths
the length of a rectangle is double its width.if its width 8cm,what is its perimeter?
asked by scoop 
History
1. Who invented the sewing machine? a. Elias Howe*** b. Robert Fulton c. Samuel Morse d. John Deere 2. By 1860, the Midwest and the East were united by a network of... a. Roads b. Railroad tracks*** c. canals d. steampowered ships 3. Which invention
asked by Alice 
Physics
Sally has a mass of 50.0kg and earth has a mass of 5.98X10^24kg. The radius of earth is 6.371x10^6m. A)What is the force of gravitational attraction between sally and earth? B)What is Sally's weight?
asked by Sam 
precalc
4. REVIEW PROBLEM: Solve). √32x + √3x +13 =5 the term (32x) is under a radical as well as the term (3x+13). Please show all steps!! i keep on getting x=9 but plugging it in it is wrong!
asked by Jillian 
Math
You have two loans, for 2 years each. The total interest for the two loans is $138. On the first loan, you pay 7.5% simple interest on a principal of $800. On the second loan, you pay 3% simple interest. What is the principal for the second loan?
asked by Suzie Q 
Physics
A sphere of mass 85kg is 12m from a second sphere of mass 65kg. A)what is the gravitational force of attraction between them?
asked by Sam 
Precalc
let f(x)= (x / (6x36)) and g(x)= (1/(x6)). find all numbers x, if any, such that f(x) < g(x)
asked by Jillian 
Art
What symbol is often used around the head of Saint to signify importance? A crown A wreath of thorns A band of flowers A halo•• Correct this if you can
asked by Tj 
Chemistry
2g AgCl is obtainded by adding an excess of AgNO3 solution to a solution containing 1g of a mixture of NaCl and KCl.What is the ratio of moles of two salts in the mixture?
asked by Anamika 
math algebra
Can someone help me with this question? A can in the shape of a right circular cylinder is required to have a volume of 1,000 cubic centimeters. The top and bottom are made up of a material that costs 10¢ per square centimeter, while the sides are made of
asked by Jacob 
Art
why did artist such as leonardo da vinci use the golden ratio in their paintings? The enjoyed working with numbers It creates a balanced and intriguing visual composition The like to obey the rigid structure of the ratio Using mathematical principle added
asked by Tj 
Discrete Math
Let A = {x ∈ R cos x ∈ Z}, B = {x ∈ R sin x ∈ Z}. Is A ⊆ B? Is B ⊆ A? Is either A or B a proper subset of the where other?
asked by Alex 
education
in your opinion, Is vygotsky or Piaget theory is more relevant to the issues facing the modern classroom?
asked by John 
Math
Find the missing dimension. Height=15ft Area=285ft2
asked by Samantha 
maths
Kelly drives from town A to town B WITH an average speed of 30mph the journey takes her 2 hours 15 minus to get from town A to B .whats is the distance between the tow towns ?
asked by maryam 
Chemistry
A compound has the empirical formula CHCL .A flask with volume 253 cm3 at temperature of 373K and pressure of 1.0 atm contains 0.8 g of the gaseous compound. Find the molecular formula of the compound.
asked by Amy 
TOURISM
PROJECT INFLUENCE OF GLOBAL EVENTS ON TOURISM
asked by CAROLINE 
math
the radius r of a right circular cone is increasing at a rate of 2cm/min.the height h of the cone is related to the radius by h=3r.find the rate of change of the volume when r=6cm
asked by ruth 
math
Two people start at the same point One walks east at 2mph and the other walks southwest at 3mph. How fast is the distance between them changing after 30 minutes?
asked by claudia 
MATH
can someone explain. 3(cos(X)1)=1 thanks
asked by Alicia 
Math
What would be the rate if the Equation is y=2x+10 and x is days and y is height in ft. I think I heard somewhere that the rate is the coefficient so would the rate just be 2 ft per day? I was hesitant on this because of the y intercept.
asked by Sage R. 
mechanics
A turntable rotating at 78 rev/min slow down and stops in 32 second after the motor is turned off. a) Find its angular acceleration in rev/min^2. b)how many revolutions does it make in this this time
asked by anaya 
Chemistry
A 1.1% (w/w) solution of cocaine hydrochloride (molar mass 339.81 g/mol) in water. Calculate the molal concentration. Is it 0.0297 mol/kg?
asked by Student 
physics
a 50 kg astronautejects 100 g of gas from his propulsion pistol at a velocity of 50 m/s. what is his resulting velocity?
asked by kyla 
Math
Paula spent 3/8of her allowance on clothes and 1/6 on entertainment. What fraction of her allowence did she spend on other items?
asked by Emily samuel 
Math
Suppose h(x)= sqrt(f(x)) and the equation of the tangent line to f(x) at x=1 is y=4+5(x−1). Find h′(1).
asked by Kyle 
Trig
The Stratosphere Tower is Las Vega dominate the city's landscape by rising 1,149 feet above the desert floor. The restaurant at the top of the tower turns slowly and completes a full revolution in one hour. How many radians will the restaurant have rotated
asked by Lux 
drivers ed
1. When you are going through a crosswalk on foot, which part of the highway transportation system (HTS) includes you? (1 point) roadway users  vehicles
asked by patrickgevaras 
Math
3/8 x 11/15 in its simplest form
asked by Jen 
English
How can I reword or connect the two parts of this sentence? The truth behind the controversy is more than the remembrance of soldiers during the American Civil War, but the enslavement to Caucasian slave owners and the many African American slaves whose
asked by T 
physics
A man tries to push a crate of 8kg across a rough surface. The static friction coefficient is 0.6 and the kinetic friction coefficient is 0.4. Calculate the friction force exerted on the crate if: a) a horizontal force of 45 N is exerted on the crate and
asked by Stressed out 
statistics
The second moment about mean oftwo distributions are 13.76 and 63.0 while the fourth moment about the men are 528.06 and 9500 respectively which of distribution is 1 leptokuric [2] mesokuric [3] platykurtic
asked by shumaila 
Bio
Is this considered an adaptive value? Brown beetles are resistant to this viral disease
asked by Anonymous 
Bio
What is the difference between cause adaptive variations and select adaptive variations
asked by Anonymous 
oblique triangle
B = 68°24'36", C = 54°13'48", b = 12.57
asked by alex 
Chemistry
Calculate the maximum wavelength of light capable of removing an electron for a hydrogen atom from the energy state of n=4 if it requires an energy of at least 1.36 x10^19 J to do this. Please help with formulas to use?
asked by Maxx 
math
I have 3 balls in a box, one red, one blue, and one green. Am I more likely to draw a red ball followed by a green ball or a blue ball among the first two balls to be drawn?
asked by Terri 
Math
Lina is 4 years older than christy, five years from now , her age will be twice Christy's age 4 years ago. What are their present ages?
asked by Kaye Anne 
Math
Find the linear speed of a point that moves with constant speed in a circular motion if the point travels along the circle an arc length = 2178/23 kilometers in time t=11 seconds?
asked by Holly 
Math
a carpenter needs to buy either an 8 foot or a 10 foot piece of wood that will be cut into three pieces. these pieces will be 4 3/4 feet, 1 5/6, and 2 2/3 feet long. what length of wood should the carpenter buy?
asked by Jenny 
Bio
The high temperatures in the desert environment can kill Beetles Large Beedles cannot burrow into the sand to escape the heat. Therefore, fewer of the large Beetles will survive. The Beetles are affected by a deadly disease that spreads rapidly through the
asked by Anonymous 
science
a 2,8kg trolley is moving to the right with a speed of 0,45m.s^1. A 1.9kg brick is dropped from rest and lands on the trolley. the trolley and bRick move together across the horizontal surface. Assume an isolated system. determine the change in momentum
asked by Nomfundo 
History
How did the war with Mexico lead to conflict between the North and the South?
asked by Anonymous 
Math
Suppose F(G(x))=x^(2) and G′(1)=5. Find F′(G(1)). F′(G(1))= ___
asked by kasey 
Geometry
A brick has a length of 22 cm and a width of 17 cm. If the volume of the brick is 3,740 cm3, then find the height of the brick
asked by Gabs 
math
A diagram measuring 20 cm long is reduced on a copy machine to 15 cm long. If the width of the original copy is 16 cm, what is the width of the reduced copy? Show your work.
asked by annabelle 
physics
a rectangular box of mass 400g has a diameter 20cm by 10cm by 5cm compute the pressure it exerts on each face of the box when it rests on a table take g=10m/s2
asked by gelila 
math please help
find the midpoint of a segment with endpoints at (7,9) and (1,1)
asked by selena 
Math literacy,lo,geograph,life sciences,tourism,english,isizulu
Which career path i can follow
asked by Mcebo 
Algebra
What is the answer for the following problem : [7p7]=5 _______ 10
asked by Ella 
physics
a conductor is 2m long and 8mm diameter if its resistivity is 1.8*10^8 ohmm calculate a,the resistance of the conductor b,the current in the conductor when a p.d of 10v is maintained across its ends c,the current density d,the electric field in the wire
asked by sol 
accelerated science
what is the energy level of visible light, infrared, and radio waves in joules?
asked by Anonymous 
6th Grade Science
In the ____ temperatures can increase up to 1,700˚C.
asked by Cupcake :D 
Math
how do you find the x intercepts for the equation x^2 + 7x 12? like, I know you have to set it equal to 0 but I have no clue what numbers multiply to 12 and add to +7. plz help
asked by Ash 
Math
In what ratio the line segment AB divided by P where, OA= 4i+2j, OB=18i+4j and OP=8i+4j.
asked by Rabin 
maths lit, life sciences, visual arts and business
hi I am currently in grade 10 and I would like to know which courses are there for me when my subjects are maths literacy, business studies, visual arts and life sciences
asked by mary 
maths
the diagram below shows a fair spinner with 6 equally sized sections .mike did an experiment and carried out n spins , the spinner landed on the number 5 a total of 37 times .estimate the value of n?
asked by maryam 
CHEMISTRY
WHICH OF THE FOLLOWING IS TRUE FOR AN ACID? A. IT PRODUCES EFFERVESCENCE WITH BAKING POWDER. B. IT TURNS UNIVERSAL INDICATOR BLUE. Answer This Quest
asked by vidya 
math
a spherical ballon is inflated with gas at the rate 20cm^3 min. how fast is the radius of the ballon changing at the instant when the radius is 2cm
asked by ruth 
exp 105
Question 2. 2. Select the sentence that is punctuated correctly. (Points : 1) The oil from Eucalyptus trees which are native, to Australia is known for its medicinal properties. The oil from Eucalyptus trees, which are native to Australia, is known for its
asked by Anonymous 
math
What is the relationship among the numbers and symbols in the expression (14 – 4) ÷ 2? Choose all answers that are correct. A. The difference between 14 and 4 is doubled. B. The difference between 14 and 4 is split into 2 parts. C. The expression has a
asked by mark 
Math
Formula. I = P x R x T. Is time is for 2 years do You $10,000 x .15 x 2 (or 24 months)
asked by Mary 
math help azap
The twoway table shows poll results for preferred flavor of ice cream, vanilla or chocolate, and preferred topping, sprinkles or nuts. Of the people polled, how many chose vanilla ice cream? Sprinkles Nuts Vanilla 9 2 Chocolate 6 7
asked by liliana 
education
The meaning of the "oxymoron" is a. dummy b. farty c. selfcontradictory phrase d. single e. shadow around a flame
asked by John 
Math
You have $5 for lunch. You bought a turkey sandwich for $2.25. Write and Solve an inequality to show how much more you can spend. Thank you in advance for the help. I cannot seem to figure this out!
asked by Mystery Girl 
Math Calc
Suppose F(G(x))=x^(2) and G′(1)=5. Find F′(G(1)). F′(G(1))= ___
asked by Kim 
life oriantation
suggest five practical actions that you can take to address human rights violations of xenophobia community
asked by nonkazimulo 
Math
A truck is carrying orange juice cherry juice and cranberry juice bottles in a ratio of 1:2:5. If there are 30 cherry juice bottles, then how many cranberry juice bottles are there?
asked by Kristy 
science
How can I prepare a acid with a specific concentration and volume. Example how can I prepare o.5M of HCl
asked by adams 
science
This type of autoimmune disease occurs when the immune system attacks the layer of insulation that surrounds the nerves and slows nerve impulses.
asked by kevon