Questions Asked on
May 8, 2014

Chemistry
What would the potential of a standard hydrogen (S.H.E.) electrode be if it was under the following conditions? [H+] = 0.38 P(H2) = 3.8 T = 298 K
asked by Molu 
Chemistry
Complete and balance the following equation. Then write it as a net ionic equation. K3PO4(aq) + MgCl2(aq) Umm...help
asked by Angela 
Chemistry
How many grams of nitrogen are required to react with 2.79g of hydrogen to produce ammonia? A) 25.8 g B) 13.0 g C) 78.2 g D) 38.7 g E) 77.4 g I get the answer as 38.7 but it is meant to be B I did 2.79g x 3molH2/2.016g/mol x 1molN2/3molH2 x
asked by Anonymous 
Biology
9. The restriction endonuclease AluI leaves blunt ends on DNA fragments after digestion. These blunt ends a) form hydrogen bonds with the blunt ends of other fragments produced by AluI b) are fully base paired c) have only one unpaired base d) always
asked by Deepa 
CHEMISTRY HELP !!!! CHECK !!!
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 YULCHANG 
calculus help
Evaluate!!!! integral 10 to 10 ((2e^x)/(sinhx+coshx))dx Thanks!
asked by TANYA 
Math
Triangle L'M'N' is a dilation of triangle LMN. If the scale factor of the dilation is 1/5, which of the following statements is true? Triangle L'M'N' is a rotation of triangle LMN. Triangle L'M'N' is the same size as triangle LMN. Triangle L'M'N' is a
asked by Anonymous 
(12)Chemistry  Science (Dr. Bob222)
Calculate delta E for a process in which 88.0 g of nitrous oxide gas (N2O) is cooled from 165 ˚C to 65 ˚C at a constant pressure of 5.00 atm. The molecular weight of nitrous oxide is 44.02 g/mol, and its heat capacity at constant pressure, Cp, is 38.70
asked by Ana 
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 
Chemistry 104
A current of 3.40 A is passed through a Ni(NO3)2 solution for 1.80 hours. How much nickel is plated out of the solution?
asked by Mona 
math
two forces of magnitudes 7N and 9N act at an angle alpha such that sin alpha=0.4. Find the magnitudes of the two possible resultants
asked by georgina 
Chem
Determine the volume of 0.250M KOH solution required to neutralize each of the following samples of sulfuric acid. 200mL of 0.135M H2SO4. I have gotten both 0.027 and 0.675. I thought it was mol/L. Please help!
asked by JR 
chemistry
What is the final temperature when 54g ice at 0oC is mixed with 200g water at 65oC
asked by treasa 
math
Telephone company A charges $3.00 for the first minute of any long distance call and $0.50 for each additional minute. Telephone company B charges $2.00 for the first minute of any long distance call and $0.70 for each additional minute. If the cost of a
asked by Vicky 
CHEMISTRY HELP ! Check Please!
Calculate the cell potential, at 25 C, based upon the overall reaction Zn2+(aq) + 2 Fe2+(aq) > Zn(s) + 2 Fe3+(aq) if [Zn2+] = 1.50 x 104 M, [Fe3+] = 0.0200 M, and [Fe2+] = 0.0100 M. The standard reduction potentials are as follows: Zn2+(aq) + 2 e– >
asked by JuYoung 
ALGEBRA
CONTACT THE EXPRESSIONS.THAT IS USE THE PROPERTIES OF LOGARITHM TO WRITE EACH EXPRESSION AS A SINGLE LOGARITHM WITH A COEFFICIENT OF 1. In 32 in 9 + 18 in 32 in (9+6) in 32 (in 4 + in 8)
asked by Mary Ann 
MATH PLS HELP CHECK ANSWERS
3. What is the rule for the function shown in the table? (1 point) x = 1, 0, 1, 2 y = 2, 1, 4, 7 A.y = 1/3x + 1 B.y = 3x + 1 C.y = 1/3x D.y = 1/2x + 1 4. What is the function rule for the following situation? rex paid $20 for a membership to the pool and
asked by TTR+S<3 
Math
Dorothy and Rosanne are baking cookies for a party. Working alone, Rosanne can finish the cookies in 6 hours. Dorothy can finish them in 8 hours if she is working alone. How long will it take them to bake the cookies if they are working together? Round
asked by Lyndsay 
Calculus
Which of the following is a separable, firstorder differential equation? A) dy/dx= x+y/2x B) dy/dx=x+y/xy C) dy/dx=sinx
asked by Samantha 
algebra 2
I=nE/R+nr solve for R.
asked by Ruben 
Biology
5. Dideoxynucleosides are employed in the course of the Sanger process of DNA sequencing. Dideocynucleosides are used because a) They stop the synthesis of DNA strands b) They are fluoresce c) They are radioactive d) They move quicly during gel
asked by Deepa 
Algebra
W=√1/LC, for L, electricity formula.
asked by Boo 
Math
The distance s in feet that a body falls in t seconds is given by the formula s=16t^2. If a body has been falling for 5 seconds, how far will it fall during the 6th second? Please show work/explain A. 16 ft. B. 80 ft. C. 176 ft. D. 400 ft. E. 576 ft.
asked by Johnny 
Spanish
Sra. will you please check my answers? Thank you so much! 1. Rewrite the following text in the imperfect indicative. Una vez al mes, mi hermana Sonia y sus amigos van al teatro. Son cinco compañeras de colegio que se llevan muy bien. María va todos los
asked by Anna 
Math 10
Myrtle throws a ball upward from a secondfloor balcony, 6 m above the ground with an initial velocity of 2 m/s. In this situation, u = 2 and ho = 6, so the relation that models the height of the ball is h = 5t2 + 2t + 6. Myrtle knows that changing the
asked by Kitty 
math
Consider the line 9x  7y =4 What is the slope of a line parallel to this line? What is the slope of a line perpendicular to this line?
asked by joanna 
Math
I know some of these are really simple, and I can figure them out easy enough, but please answer all questions. I'm learning this subject, but I have to complete the entire school year within a month and I'm up to my head in homework and I just don't have
asked by Def 
Steps in Chemistry
You notice that a lawn looks unhealthy and that, perhaps, the grass is dying. Undertake a scientific project to save the lawn. What is your initial hypothesis? Describe an experiment you can design to test it  include more than 1 step and variables.
asked by Angela 
Biology help please
1.Many freshwater invertebrates eliminate ammonia by: A. Converting it to uric acid and eliminating it with solid wastes. B. simple diffusion across the gill membranes. C. converting it to urea and eliminating it in their urine. D. simple diffusion across
asked by Cassie 
Biology PleaSE help!
Hello, this is my biology assignment. I filled the answer's but I just need your help to correct me if I'm wrong Thank you. 1) The discovery of restriction endonucleases was crucial to the development of recombinant DNA technology because these enzymes. a)
asked by Deepa 
troy Academy
the overall effect of the five amendments was to extend the vote to
asked by lee 
physics
As an astronaut, you observe a small planet to be spherical. After landing on thte planet you set off, walking always straight ahead, and find yourself returning to your spacecraft from the opposite side after completing a lap of 26.5 km. You hold a hammer
asked by sydwell 
maTH
I NEED HELP REALLY BAD 5. Directions: Select all the correct answers. Nancy is studying constellations in science class. Two things are strongly supported by all random samples of the number of stars in a constellation. Most constellations have from three
asked by Babatunde 
Economics & Statistics
In the least squares equation, Ŷ = 10 + 20X the value of 20 indicates ____________. The Yintercept increases by 20 units for each unit increase in X That Y increases by 20 units for each unit increase in X That X increases by 20 units for each unit
asked by Student5 
Math
Mrs. Reed is decorating wreaths. She needs 24 in. of gold ribbon and 45 in. of white ribbon to tie around each wreath. The white ribbon is sold by the foot. About how many feet of white ribbon will Mrs. Reed need to make 18 wreaths?
asked by Loeve 
ela
What is a theme in this story? a. Age is just a number. b. The joys of youth are fleeting. c. Diamonds are a girl’s best friend. d. A bird in the hand is worth two in the bush.
asked by idk 
math promissory notes
1.Joanne borrowed RM5000 for 180 days at a discount rateof 8 1/2 %.find the proceeds. 2.A businessman needs RM12000 for four months. What should be the size of the loan if his bank charges a discount rate of 9.5%.
asked by SISKA 
Math
An investment earning simple interest at a rate of 1.10% per annum for a term of 5 years earned $82.50 in interest. What was the principal?
asked by Rafiki 
Chemistry
Calculate the standard freeenergy change for the following reaction at 25 °C. Standard reduction potentials can be found here. 2Au(3+) + 3Cr>2Au+3Cr(2+)
asked by Janu 
World Regional Geography
Which of the following is true of the Antarctic Treaty System? A. It was established specifically to enforce ecological regulations. B. It bans commercial mining in Antarctica. C. It's actually the Society for the Geographic Exploration of Antarctica. D.
asked by Mary 
Chemistry  Science (Dr. Bob222)
Hydrazine is used as a rocket fuel because its reaction with oxygen is extremely exothermic: N2H4(liquid) + O2(g) N2(g) + 2H2O(liquid) ΔH(reaction) = 615 kJ mol1 What is the enthalpy of this reaction if water were produced in the gaseous rather than
asked by Ana 
7th grade math
Computer catalog has a computer monitor that is 19 inches. The 19 inches is the diagonal distance across the screen. If the screen is 10 inches in height, what is the width of the screen to the nearest inch?
asked by Jim 
Physics
A daredevil performs a stunt in which he jumps with his motorcycle from a horizontal cliff 10m high. What must the initial velocity of the motorcycle be, in order for the stuntman to barely clear a 10m wide water canal at the base of the cliff?
asked by Tim 
math
An actor invests some money at 7%, and $44000 more than three times the amount at 10%. The total annual interest earned from the investment is $41770. How much did he invest at each amount
asked by angel 
Check my answers!
1. Which of the following types of joints allows the type of shoulder motion needed by a baseball pitcher to pitch a fastball in a baseball game? pivot *** gliding hinge ball and socket 2. Which of the following pairs of joints represents the same type of
asked by Anonymous 
Chemistry
So I am trying to understand in molecular terms the solubility of NaCl in water. So there are intramolecular forces that are mostly ionic between the ions, creating this partial positive, partial negative substance. And the intermolecular forces are also
asked by Serena 
Ethics in Criminal Justice
The correlativity of rights and duties means that: A. moral duties override moral rights. B. moral rights override moral duties. C. the existence of moral rights implies duties by which others must abide. D. None of the above. I think it's B. Am I right?
asked by ERICA 
Math
I have no idea how to calculate z scores Weights of the vegetables in a field are normally distributed. From a sample Carl Cornfield determines the mean weight of a box of vegetables to be 180 oz. with a standard deviation of 8 oz. He wonders what percent
asked by Rhett cowley 
Math
The distance require to stop a car varies directly as the square of its speed. If 250 feet are required to stop a car traveling 60 miles per hour, how many feet are required to stop a car traveling 96 miles per hour!
asked by Angela 
Grade 12 Math
if a and b are unit vectors, and magnitude of vectors a +b = sq. root of 3, determine (2a5b) dot (b+3a).
asked by Melissa 
Chem
A gas is heated from 252 K to 296 K while its volume is increased from 23.5 L to 30.5 L by moving a large piston within a cylinder. If the original pressure was 0.96 atm, what would be the final pressure?
asked by Sarah Pick 
math
The current river flows at rate of 4mph. In order for a boat to travel 24 miles up river and then return in a total of 5 hours how fast must the boat be able to travel in still water?
asked by Sarah 
math
Abe can mow the lawn in 15 minutes.Ben can mow the lawn in 20 minutes.Carl can mow the lawn in 30 minutes.They work together for 5 minutes.What part of the lawn was mowed? a. 1/4 b. 2/3 c. 3/4 d. 4/5 e. all of it please answer and explain
asked by thomas 
History
How was the Judiciary Act of 1789 a compromise between Federalists and AntiFederalists?
asked by Kathlyn 
Math
***PS: I can't put the diagram so I type it.*** The diagram below shows the contents of a jar from which you select marbles at random. Inside the jar there is 16 marbles. Inside the jar there is 4 red marbles. 7 blue marbles. 5 green marbles. a. What is
asked by Chloé 
TROY Academy
president kennedy was calling on u.s citizens to
asked by lee 
chemistry
If 80.6 pounds of alcohol are mixed with 42.7 pounds of water, what is the percent of water (by weight) in the mixture? Answer in units of %
asked by jazmin 
Biology
Could anyone explain shade avoidance in auxin in plants?
asked by Cammy 
troy Academy
a comparison of the average temperatures on any given day at points Z, X, and U on the globe would probably show that the temperature at point X is
asked by lee 
Algebra 2!
1.) ƒ(x) = (x^4)/4 − 3x^3 + (23x^2)/2  15x. Find the x values where the extremes occur. 2.) On a 10 question exam each question is worth 10 points (no partial credit). How ways can you make a 70%? 3.) Write the polynomial in standard form. Then
asked by FIONA 
algebra
Use the definition of logarithm to simply each expression log lower 10 ^104
asked by Mary Ann 
physics
A hammer is being used to pull a nail out of a horizontal board. L = 32 cm and d = 5.2 cm. If a force of 158 N is exerted horizontally as shown, calculate the force (in N) exerted by the hammer claws on the nail.
asked by sydwell 
Math
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 
math lit ,geography,history,life science,LO
Am in grade 10 and am doing these subjects and I dnt knw what kind of career choice I can choose please guys help me out please
asked by rebaballetswe lebakeng 
math
the fabric mart had cost of goods sold at $844,000 for the year.the beginning inventory at cost was $305,500, and the ending inventory at cost amounted to $414,200. the inventory turnover rate published as the industry standard for a business of this size
asked by teresa 
troy Academy
based on the results of the studies, what should an elementary school teacher do to ensure that a child with an unusual name develops normal intellectual ability
asked by lee 
Biology
Examining an animal showing juvenile somatic characteristics and sexual maturity, how can you tell if this is the result of progenesisor neoteny?
asked by Jack 
algebra
tiger woods standing at +3 on the xaxis.the hole is at 5 on the xaxis.what is the quadratic equation that would get him a hole in one
asked by Gdkf 
troy Academy
which of the following statements is the best supported by the new studies
asked by lee 
Math 2
Lauren used 1 quart of milk to make ice cream. What is the closest to this amount of milk? Answers are either. 100 liters, 100 milliliter a, 1 milliliter, or 1 liter. Can you help answer which one is closest
asked by Jenny 2 
Algebra Help!
1.) The chief designer for a large automobile company is considering 4 different radiator grills, 2 different style of headlights, and 5 different rear fender designs. If an automobile style consists of a grill, headlight, and rear fender, how many
asked by Larry 
algebra
you have N= 2,500 + 100 Ina Cm > with a line under the > 1 How many units are sold after spending $1,000? Round the answer to the nearest whole number.
asked by Mary 
Algebra
A furnace repair service charged a customer $80 for parts and $65 per hour worked. The bill totaled $177.50. About how long did the repair technician work on the furnance? A. 0.5 hour B. 1.5 hours C. 2 hours D. 47.1 hours
asked by Anonymous 
Math
o is the center of the regular pentagon ABCDE. How many degrees are there in OAB? Please explain or show work A.36 B.54 C.72 D.108 E.126
asked by Johnny 
statistics
in the spring of 2001, a university had 40,000 registered students. to estimate the percentage of all students expecting to graduate in 4 years, a simple random sample of 225 students was drawn, 144 of the sample planned to graduate in 4 years. (a) were
asked by anonymous 
math
(a^4b^6)^0
asked by Anonymous 
Chemistry
Please Help! Describe how water could be classified as either an acid or a base. Give an example of each (acid and base). What word describes substances that can be classified as acids or bases?
asked by Jackson 
Physics
A ball leaves a table with an initial horizontal velocity of 2.4m/s. The height of the table is adjustable. In two runs, the height of the table is set at 2.5m and 5.0m respectively. Assume air resistance is negligible. What is the horizontal distance
asked by Tim 
math
A▲b = 2a3b then 2▲(3)=
asked by Anonymous 
math
(2x)^6
asked by Anonymous 
statistics
Plymouth Rock Securities is interested in finding out if there is a relationship between the number of new clients brought into the firm by a broker and the sales performance of the broker. A random sample of 11 brokers' records are reviewed to determine
asked by Mary 
statistics
8.Jean Siskel is an entertainment analyst for West Coast Securities. He is trying to develop a model to estimate gross earning generated by a new movie release. He has collected the following data on 20 movies: Gross Earnings, Production Costs, Promotion
asked by Mary 
Math
36. A clock gains 20 minutes each day. if the correct time is indicated now , in how many days will it again show the first correct time? Please show work/explain A.8 B.18 C.20 D.36 E.72
asked by Johnny 
ALGEBRA
A playground is shaped like a rectangle with a width 5 times its length (l). What is a simplified expression for the distance between opposite corners of the playground? I can't copy the multichoice answers but can you help?
asked by Anonymous 
Math
25. A metal cube with an edge of one foot is melted into rectangular solid oneeighth of a foot in height. What is the area of the top of the top of the new solid. Please show work/explain A. 1/64 sq.ft. B. 1/8 sq.ft. C. 1/4 sq.ft. D. 4 sq.ft. E. 8 sq.ft.
asked by Johnny 
Algebra
1/2(10x8)3(x1)>15=?
asked by mike 
Math
Last will of an eccentric lady reads: I bequest $1000 less then one half of my estate to my beloved red cat. I bequest $800 less then one third of my estate to my favorite striped cat. I bequest $600 less then one quarter of my estate to my darling black
asked by Jay 
Math  Algebra
Ti'a rectangular gaden has perimeter of 20 meters. She wants its area to be at least 24 square metesr. Find the interval for the possible length of Tia's garden.
asked by James 
Physics
Q: Japanese honeybees have a unique defensive mechanism against their natural predator, the giant hornet. When threatened by a hornet attacking the nest, worker bees will work together to surround the hornet, and then vibrate to create heat. If enough bees
asked by Rebecca 
College Chemistry
1 L of N_2_ gas, having a pressure of 2.5 atm, is added 1 L of Ar gas, having a pressure of 3.7 atm, in a sealed, rigid flask. What is the final pressure in the flask?
asked by Devin 
Chemistry
Why is the first ionisation energy of chlorine greater than the first ionisation energy of Lithium ?
asked by Daksh 
chemistry
a 2.00 L ballon at 25 degrees celcius and 745mmHg floats on an altitude where the temperature is 10 degrees celcius and the air pressure is 700mmHg. what is the new volume othe balloon
asked by lola 
Chemistry
Calculate molarity of HNO3 please help? Calculate molarity of HNO3 prepared by dissolving 22.3 grams of HNO3 in water to make 875 ml of solution... Please help I'm stuck
asked by Alex 
math
A mechanical toy on a circular track goes forward 3 in. and then backward 2 in. How many moves does the toy take to complete on 15 in. revolution of the track?
asked by Violet 
economics
what are the welfare payments or consumer subsidies?
asked by yonela 
Physics
A little girl is standing on a cliff and throws a ball straight down at a speed of 5m/s towards the ground below. How far has it fallen 2.0 seconds after it leaves her hand?
asked by Tim 
Algebra
A car is traveling at an average speed of 54 miles per hours. How many minutes will it take the car to travel 117 miles
asked by Anonymous 
QuickBooks Accounting
Describe how the QuickZoom feature of QuickBooks does or does not provide the same help in the statement of cash flows as it does in the income statement.
asked by Kenneth 
Chemistry 104
A current of 3.40 A is passed through a Ni(NO3)2 solution for 1.80 hours. How much nickel is plated out of the solution?
asked by Janavi 
Algebra
A cylindrical can has a volume of 5625π cubic centimeters. Its height is 25 centimeters. What is the radius of the can? Use the formula V=πr^2h
asked by michael 
Math
How many different ways can the digits 1,2,3,4,5 be arranged to create a five digit password
asked by PreCal 
(19) Chemistry  Science (Dr. Bob222)
Use the following information to answer this question: Cu+(aq) + e → Cu(s) E° = 0.521V Cu2+ (aq) + e → Cu+ (aq) E° = 0.153 V. Given these half cell reactions, an aqueous solution of Cu+ ion in the absence of O2(g) : A. will be thermodynamically
asked by Ana 
math
Calculate the final value after 10 years if you invest $5000.00 at 2.5% per annum, compounded annually.
asked by Rafiki 
Algebra
Which of the following is a correct statement? 9/3>3/9 3/9>9/3 3/9
asked by Anonymous 
(23.Chemistry  Science (Dr. Bob222)
An electrochemical battery made from Sn and Cu electrodes under standard conditions shows an initial voltage of V= 1.1 V. If the concentration of both Cu2+ and Sn2+ solutions is increased to 2 M from 1 M, the observed voltage will: (Hint: use the Nernst
asked by Ana 
world regional geography
A major objective of the South Pacific Forum founded in 1971 was
asked by Mary 
Math
A boxs width is 1/4 its length. The perimeter of the box is 30 inches. What are the boxs length and width?
asked by Ariel 
world regional geography
Which of the following is true of the Antarctic Treaty System?
asked by Mary 
Chemistry
Calculate the cell potential for the following reaction as written at 25.00 °C, given that [Cr2 ] = 0.859 M and [Ni2 ] = 0.0190 M. Standard reduction potentials can be found here. Cr+Ni(2+) >Cr(2+) + Ni
asked by Ladoo 
world regional geography
Sudan is omitted from inclusion in the subSaharan region because it
asked by Mary 
math
Calculate the amount of interest earned in 10 years on $1000.00 invested at 3.00% per annum, compounded monthly.
asked by Rafiki 
World REgional Geography
A major objective of the South Pacific Forum founded in 1971 was A. expanding the copra trade. B. reconciling diverse cultural heritages. C. stopping French nuclear testing in the region. D. identifying and resolving human rights concerns in the region.
asked by Mary 
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 HELP HELP ME PLEASE 
Math  Algebra
In a thin rectangular tin sheet 8x12 sheet, you have to cut a rectangular opening. The area of the opening has to be 45 feet, and its edges have to have an equal distance from the edges of the sheet. Determine this distance.
asked by Demi 
Math
Two forces of magnitude 15N and 4root2N are acting in the directions 3i4j and i+j respectively, find the magnitude of the resultant of the two forces.
asked by Liam 
Statistics
In the least squares equation, Ŷ = 10 + 20X the value of 20 indicates ____________. The Yintercept increases by 20 units for each unit increase in X That Y increases by 20 units for each unit increase in X That X increases by 20 units for each unit
asked by Student5 
Math
The numerator of a simple fraction is 2 less than its denominator. The sum of this fraction and its reciprocal is 2 4/35. Find this fraction.
asked by Jenn 
Math
Two vans leave a parking lot at the exact same time. A few minutes later, car 1 is 8 miles due east of the parking lot and car 2 is 15 miles due south of the lot. How far a part are the two cars in miles?
asked by Jim 
Math
A satellite dish in storage has parabolic cross sections and is resting on its vertex. A point on the rim is 4 ft high and is 6 ft horizontally from the vertex. How high is a point which is 3 ft horiozntally from the vertex? Draw a sketch and solve.
asked by Dinh 
Chemistry  Science (Dr. Bob222)
Nitrogen gas has values of Cv and Cp of 20.8 and 29.1 J K1 mol1, respectively. When a certain amount of nitrogen is heated at constant pressure, what fraction of the heat Q is used to increase the internal energy of the gas, and how is the remaining
asked by Ana 
Algebra
which of the following is correct? 9/3>3/9 3/9>9/3 3/9
asked by Anonymous 
history
As ratified in 1870 the amendment prohibited
asked by kiera 
Maths
If the variance of the four numbers a,b,c and d is 9, then the variance of the four numbers 14a, 14b, 14c and 14d is _? A. 5 B. 9 C. 23 D. 121
asked by MilyYang 
Maths
Let f(x)=3x^26x+k, where k is a constant. If the ycoordinate of the vertex of the graph of y=f(x) is 7, then k=?
asked by MilyYang 
Math
There is an expression some people use that says, “What you put into it is what you get out of it.” People might use this expression to describe your skills at a sport or activity and how that relates to the amount of time and effort you spend
asked by Taylor 
Maths
If the straight line xy=k and the circle x^2+y^2+2x4y1=0 intersect at A and B, then the xcoordinate of the midpoint of AB is _ ? A. 1+k B. 1k C. (1+k)/2 D. (1k)/2
asked by MilyYang 
english
one of the artists said him painting were at gray gallery
asked by kim 
physcial science
Jennifer, who has a mass of 50.0 kg, is riding at 35.0 m/s in her red sports car when she must suddenly slam on the brakes to avoid hitting a deer crossing the road. She strikes the air bag that brings her body to a stop in 0.500 s. What average force does
asked by valerie 
Physics
Starting from rest, a horse pull a 250kg cart for a distance of 1,5km. it reaches a speed of 0,38m/s by the time it has walked 50,0m and then walks at constant speed.fictional force 260n.each gram of oats the horse eats releases 9kJ of energy. 10% of this
asked by Marina 
chemistry
Assume you poured 5.00 g of KOH in 250 mL of pure water. What is the molarity of the solution you made?
asked by Bea 
Chemistry
Calculate the cell potential for the following reaction as written at 25.00 °C, given that [Cr2 ] = 0.859 M and [Ni2 ] = 0.0190 M. Standard reduction potentials can be found here.
asked by Didi 
Physics
A.) How much work must be done in order to compress a spring with an elastic constant of 400 lb / in and 1.75 inches? *Note: 1.75" is the compression & 400#/in is k the constant. B.)If 50 ft lbs of work is done on the same spring (in part a) in order to
asked by Adam  Require Help Please  Setup Concerns 
Physics
How do I get the final velocity from Vf^2 = Vi^2 + 2ad. Here are my following numbers: Vi= 0.3048 m/s Vf= ? d = 22.86 m a = 166 m/s^2 t = Not required Based on the numbers I have would I set it up this way??? Vf^2= 0.3048^2 + 2*(166*22.86) This process
asked by Adam  Require More Help Please  Setup Concerns 
Physics
Peter is shooting arrows at a target with a bow. The target is 10m above the arrows launch point and some distance from Peter. If the arrows are shot with initial velocity Vo at 60 degrees with respect to the ground, then they will hit the target at the
asked by Sandy 
Physics
A cannonball is hot straight up from the edge of a cliff with an initial velocity of 30m/s. A second cannonball is shot straight downward from the edge of the same cliff with an initial velocity of 30m/s. How do the speeds of the two cannonballs compare
asked by Sandy 
statistic
if the p value of the test statistic id equal to 1.36, then the pvalue is
asked by Anonymous 
math
The shadow of a 5foot tall post is 10 feet long. At the same time a tree casts a shadow that is 24 feet long. What is the height of the tree? A. 2 feet B.14 feet C. 12 feet D. There is not enough information to solve the problem
asked by Anonymous 
Chemistry
Calculate the cell potential for the following reaction as written at 25.00 °C, given that [Cr2 ] = 0.859 M and [Ni2 ] = 0.0190 M. Standard reduction potentials can be found here.
asked by Molu 
Math
Rectangles ABCD and EFGH are similar figures because angles A, B, C, and D are congruent to angles E, F, G, and H, respectively. If DA equals 19 units, AB equals 8 units, and HE equals 133 units, what does EF equal? A. 56 units B. 122 units C. 7 units D.
asked by Anonymous 
Chemistry
How much heat in kilojoules must be removed from a glass of water that contains 100g of water to lower its temperature from 30 C to 15 C?
asked by KG 
Math Word Problem %
lisa spend 3 hours driving to and from work each work day. what percent of her day does she spend driving to and from work each work day?
asked by andra 
ALGEBRA
A gardener is mowing a 20 by 40 yard rectangular pasture using a diagonal pattern. He mows from one corner of the pasture to the corner diagonally opposite. What is the length of this pass with the mower? Give your answer in simplified form. The multiple
asked by Anonymous 
Chemistry
A solution of 22.0g of nonionic ascorbic acid in 100.0g of water freezes at – 2.33°C. What is the formula weight of the acid?
asked by Jaques 
PHYSICS
How do I determine final velocity in the equation Vf^2=Vi^2 + 2ad ?
asked by Adam  Working on Physics As WellRight Now 
Chemistry 104
The voltage generated by the zinc concentration cell described by, Zn(s)Zn2 (aq, 0.100 M)Zn2 (aq, ? M)Zn(s) is 11.0 mV at 25 °C. Calculate the concentration of the Zn2 (aq) ion at the cathode.
asked by Mona 
Math
The trapezoid above has a base of 38 m and a height of 12 m. Which set of dimensions would produce a similar figure? A. base = 114 m, height = 36 m B. base = 38 m, height = 36 m C. base = 119 m, height = 36 m D. base = 109 m, height = 36 m
asked by Anonymous 
Math
Eva is making bran muffin. She measures5/4 cups of bran, 1/4 cup of flour, and 7/4 cups of oats. What is the order of the ingredients from least to greatest amounts?
asked by Bella 
Chemistry
I need help with Chemistry homework.. I don't know how to write formulas..Please help me! Write the formulas for silicon dioxide.
asked by Angela 
Chemistry 104
A current of 3.40 A is passed through a Ni(NO3)2 solution for 1.80 hours. How much nickel is plated out of the solution?
asked by Rizwan 
Chemistry
The voltage generated by the zinc concentration cell described by, Zn(s)Zn2 (aq, 0.100 M)Zn2 (aq, ? M)Zn(s) is 21.0 mV at 25 °C. Calculate the concentration of the Zn2 (aq) ion at the cathode.
asked by Laila 
Physics
A.) How much work must be done in order to compress a spring with an elastic constant of 400 lb / in and 1.75 inches? *Note: 1.75" is the compression & 400#/in is the k constant. B.) If 50 ft lbs of work is done on the same spring (in part a) in order to
asked by Need some help on the setup, Please! 
Multiple Choice HELP!
Consider the elements neon, bromine, and phosphorus. Which has five electrons in its 4p sublevel? I got phosphorus wrong as my answer....
asked by Angela 
math
What magic trick dies mr.utterbunk perform every evening
asked by cheyenne 
Physics question help/ check my answers
The middle two question please check my answers and tell me if I am correct or if there is something I am missing. The first and the last question I need help to understand and complete it. Thank you in advance!!! 1. What is the electric force between a +2
asked by Brianna 
math
There were 744 tickets sold for a basketball game. The activity cardholder's tickets cost $1.75 and the noncardholders tickets cost $2.25. The total amount of money collected was $1477.50. How many of each kind of ticket were sold?
asked by angel 
Physics
1. A 40Ω , 20Ω and 60Ω resistor is connected in a parallel circuit. Which resistor would have the greatest current passing through it and why? 2. A 24Ω , 8Ω and 60Ω resistor is connected in a series circuit. Which resistor would have the greatest
asked by Liz 
chemistry
what is the final temperature of amixture containning 25 grams of ice at 20 degree celciusadded to water at room temperature 22oC mass of water is 50g
asked by treasa 
math
A room is18 ft long 14 ft wide and 8 ft high. Find the cost of carpeting the floor with carpet $5\ft2
asked by john 
Math
How is 1/(x2) = (2x  6)/(x + 6) + 1 rewritten as 1/(x  2) = 3x/(x + 6)? I don't understand.
asked by Anonymous 
Math
1)A passenger boat which travels 6 mph faster than a freighter required 3 days less time to make a trip of 2592 miles. Find the rate of the passenger boat. 2)For the first of two basketball games the price of each reserved seat was $1.50,the price of
asked by Lina 
math
A customer is withdrawing $890 and wants as many $50 bills as possible. How many $50 bills should the Teller give her?
asked by jasi 
Math  Pleeeease
Two planes take off at a ny airport. The first plane climbs at an angle of 45 degrees with respect to the ground and reaches an altitude of 5600 feet. The second plane climbs at an angle of 60 degress with respect to the ground and reaches an altitude of
asked by andra 
Adam Help
Write the formulas for silicon dioxide. Note: it says formulas SiO2 i guess is a formula but idk how to write formulas for it.
asked by Angela 
Health question
Which of the following accurately debunks the nutrition myth? A.Grapefruit can help you lose weight B.A diet will help you lose 10pounds in 3days C.Eating a snack will cause you to gain weight D.Vitamins are important supplements while exercising. I think
asked by Cassie 
science
Which evidence from the sea floor shows that tectonic plates move? A) the sea floor is youngest near a mid ridge and farther away. B) the sea floor is much older the cont. C) mid ocean ridges form the longest range of mountains on earth. D) the sea floor
asked by Kay 
Chemistry
Write the formulas for silicon dioxide. SiO2 so how am i suppose to write formula(s) for it? like how ?
asked by Angela 
English
Which literary movement consists of honest and open descriptions the setting and characters?
asked by Anonymous 
Algebra
Solve each exponential equation. Give the exact value for x. I work them out and they are wrong what am I doing that is not right. 8^X=1/64 2 3^x=6 In(6) In(3)or 1.63 8^x=6.5 0.624over In2 0r 0.900 3^x=4 2In (2) 0ver In3 0r 1.26
asked by Mary Ann 
Physics
If 50 ft lbs of work is done on the same spring (in part a) in order to compress it, by how much is the spring shortened? *Information on part (a) is 400 #/in is the k constant and 1.75" is the compression. 50 ft lbs = 600 in lbs equation is: 1/2 * 600" lb
asked by Adam Please check if I'm Correct 
math probability
A bag contains 12 marbles, 7 red and 5 green. The reds are numbered 17 and the green are numbered 15. If you pick 4 without replacing what is the probability that 2 of the 4 are numbered 5?
asked by kathy 
Math
3. What are the next three terms of the sequence 6, 12, 18, 24 a; 28, 34, 40 b; 30, ,34, 38 c; 30, 36, 44 d; 30, 36, 42  14. The sale price of ground beef at a local grocery store is $1.49 for the first pond and $1.09 for each
asked by Darcy 
Math
Three dimes to five nickels ratio if three to five total 120 coins how many are fimes
asked by Anonymous 
tech
Name as many vehicles as you can think of, that are used for Agricultural purposes.
asked by yasminb 
Multiple Choice
Physics 2. Which of the following is equivalent to one ampere? (Points : 1) 10 s/10 C 10 C/10 m 1.5 C/1.5 s 15 C/10 s Question 3.3. A stream of moving charges results in a current of 5.6 A. How long does 116 C of charge take to flow past a fixed point?
asked by Steven 
Science
I really need help with This me and my mom are trying so hard! Just click on this link and these are the question I just need the answers to 1 through 14
asked by Babatunde 
math
Some friends share a pizza.if they cut the pizza into fourths, will the slices be larger or smaller than if they cut the pizza into halves?
asked by Melissa 
PHYSICS PLEASE HELP QUICKLY
Multiple choice please help :) Which of the following is equivalent to one ampere? 10 s/10 C 10 C/10 m 1.5 C/1.5 s 15 C/10 s
asked by Hope 
Science
Is Pb Lead(atomic weight is 82)?
asked by Peeps 
math
A 40m deep well with radius 3.5m is dug and the earth taken out is evenly spread to form a plat form of dimension 28m by 22m. Find the height of the platform.
asked by Abenezer 
Social Studies
Which of the following was likely motivation for why colonists were even sent to Australia in the first place? A. to have people from the royal family go and colonize Australia. B. to send explorers who wanted to go because of monetary incentives. C. to
asked by Anonymous 
statistics
8.Jean Siskel is an entertainment analyst for West Coast Securities. He is trying to develop a model to estimate gross earning generated by a new movie release. He has collected the following data on 20 movies: Gross Earnings, Production Costs, Promotion
asked by Russel 
Algebra ( benchmark)
The Carlson family is building a house on a lot that is 91 feet long and 158 feet wide. A. Town law states that the sides of a house can't be closer than 10 ft to the edges of a lot. Write an inequality for the possible lengths of the Carlson family's
asked by Anonymous 
Chem
A flask of unknown volume was filled with air at a pressure of 389.0 kPa. The flask was attached to an evacuated flask of 32.0 L and the air was allowed to expand into the second flask. At equilibrium, the final pressure was 154.0 kPa. Calculate the volume
asked by Sarah Pick 
economics
What would be the present value of an item that has a salvage value of $25,000 at the end of four years? Assume a discount rate of 3.8% for an endofyear factor. Carry calculations to four decimal places. $25,950 $24,085 $20,747 $21,535
asked by ed 
Algebra 2
Hello! I need help with these four math problems. Thanks so much! :) 1.) ƒ(x) = (x^4)/4 − 3x^3 + (23x^2)/2  15x. Find the x values where the extremes occur. 2.) On a 10 question exam each question is worth 10 points (no partial credit). How ways can
asked by Fiona 
trig
solve the equation on the interval [0, 2pi]: tan^2 x  3 tan x + 2 = 0
asked by anonymous 
Algebra 2
1.) The chief designer for a large automobile company is considering 4 different radiator grills, 2 different style of headlights, and 5 different rear fender designs. If an automobile style consists of a grill, headlight, and rear fender, how many
asked by Drew 
Math Help!
1. Find the 4th term in the binomial expansion.(2x + 3y)^6 2. Use synthetic division and the remainder theorem to find P(a). P(x)= x^5 + 3x^4 + 3x − 7; P(1) 3. Factor the expression on the left side of the equation. Then solve the equation. x^6 + 128x^3
asked by Larry 
American History
10. During the Carter administration, Zbigniew Brzezinski A. tried to reverse the policy of détente. B. tried to get Carter to roll back taxes. C. rejected the adoption of the MX missiles to replace the older Minute Man missiles. D. was directly involved
asked by Cherokee 
math
A picture 16" x 24" has a frame 1" wide.Approximately how many times greater than the area of the frame is the area of the picture? a. 5 b. 45 c. 48 d. 80 e. 84 please answer and explain
asked by thomas 
History
Southern states did not like Hamilton's plan to pay off the federal debt because they owed less for the cost of the American Revolution than Northern states? true
asked by Kathlyn 
trigonometry
To the nearest degree what is the angle formed with the ground by a 32 ft ladder if it is leaning against a wall at a height of 28 ft?
asked by christian 
Chem
the absolute temperature of the gas at which 3.33 103 mol occupies 246 mL at 713 torr
asked by Sarah Pick 
Chem
the pressure, in atmospheres, if 0.0477 mol occupies 424 mL at 125°C
asked by Sarah Pick 
Math
How is 1/(x2) = (2x  6)/(x + 6) + 1 rewritten as 1/(x  2) = 3x/(x + 6)? I don't understand.
asked by Anonymous 
Chem
the quantity of gas, in moles, if 66.9 L at 56°C has a pressure of 11.21 kPa
asked by Sarah Pick 
Chem
(a) Use Boyle's law to calculate the volume the gas will occupy if the pressure is increased to 1.79 atm while the temperature is held constant. 3.17 L (b) Use Charles's law to calculate the volume the gas will occupy if the temperature is increased to
asked by Sarah Pick 
Physics 2701 Applied
A rock is thrown down with an initial speed of 30.0ft/s from a bridge to the water below. It takes 3.50s for the rock to hit the water. (a) Find the speed (in ft. /s) of the rock as it hits the water. (b) How high is the bridge above the water?
asked by jason 
statistics
4. John Rengel is the Quality Assurance Supervisor for Vino Supremo Vinyards. He knows that 10 percent of each box of corks is undersized. (6 pts) a) If he were to randomly select 120 corks from the next box, then how many of these corks would John expect
asked by Lise 
statistics
3. The personnel director of a corporation will study the overtime work during the previous year for the 2,575 clerical workers. A sample of 100 of these workers will be chosen at random from the files. The average and the standard deviation of the
asked by Maura 
English
Traditional African marriage is an advantage to man only nt woman.is it true or false? Reason why,or why not?
asked by Malindela 
math
Andre picks a card at random. Without putting the first card back, he picks a second card at random. What is the probability that both cards will be hearts. The cards showing are three hearts and two diamonds
asked by Olivia 
Biology
Hello, this is my biology assignment. I filled the answer's but I just need your help to correct me if I'm wrong Thank you. 1) The discovery of restriction endonucleases was crucial to the development of recombinant DNA technology because these enzymes. a)
asked by Deepa 
math
Joan moves into her apartment and wants to purchase a new couch. She wants to determine if there is any difference between the average cost of couches at two different stores. Test the hypothesis that there is no difference at a=0.05 Store 1 Store 2
asked by Hani 
Math (Calculus)
Find the volume of the solid generated by revolving the region bounded by the graphs of the equations about the yaxis. (Use Disc Method) y=3(2x), y=0, x=0
asked by Sherman 
Math (Calculus)
Use the shell method to find the volume of the solid generated by revolving the plane region about the indicated line. y=4xx^2, y=0, about the line x=5
asked by Sherman 
Math (Calculus)
Use the shell method to set up and evaluate the integral that gives the volume of the solid generated by revolving the plane region about the yaxis. y=4x^2, y=0
asked by Sherman 
Algebra
A company invests $15,000.00 in an account that compounds interest annually. After two years, the account is worth $16,099.44. Use the function in which r is the annual interest rate, P is the principal, and A is the amount of money after t years. What is
asked by Anonymous 
chemistry
If 59.4 pounds of alcohol are mixed with 28.3 pounds of water, what is the percent alcohol (by weight) in the mixture? Answer in units of %
asked by jazmin