Questions Asked on
February 28, 2014

chemistry
use the HendersonHasselbalch equation to calculate the pH of a buffer solution prepared by mixing equal volumes of 0.20 M NaHCO3 and 0.10M Na2CO3.(Ka=5.6x10^11). how would you prepare NaHCO3Na2CO3 buffer solution that has the pH of 10.40.
asked by abc 
English
Identify the underline potions many people use bamboo screens that roll up and down answers are noun clause, adverb clause, subordinate clause, independent clause thanks
asked by snow 
Science
To form an oxygen molecule (O2), two oxygen atoms share two pairs of electrons. What kind of bond is shown by this? Select all which apply. Ionic Bond Single Bond Double Bond Covalent Bond Triple Bond C and D?
asked by Anonymous 
Chemistry
What is true about the element francium (Fr, atomic number 87)? Choose all that apply. A) It has seven valence electrons. B) It is likely to form ionic bonds. C) It is in Period 7. D) It is nonmetal. E) It is a metal. I think it is B, C, and E?
asked by Anonymous 
English
They spotted a pod of killer whales driving along the ocean highway?answers are dangling, misplace, both, misplace d and dangling, no error
asked by snow 
math
A rope is wound 50 times round a cylinder of radius 25cm how long is the rope [use the value 3.14 for pi]
asked by iyabo 
History
Which statements about the African slave trade of the 1500s are accurate? Choose all answers that are correct. A. The transatlantic slave trade began when merchants from France bought slaves from the king of Songhai. B. The slave trade began to grow
asked by BlackTears_Emo 
Physics
Joanne drives her car with a mass of 1000 kg at a speed of 18m/s .Find a road friction force that is need to bring her car to a halt in 12s
asked by Anonymous 
drawing
MARCO DREW 24 PICTURES HE DREW 1/6 OF THEM IN ART CLASS HOW MANY PICTURES DID MARO DRAW IN ART CLASS
asked by TAYLOR 
Physics
Two automobiles, each of mass 1000kg , are moving at the same speed, 17m/s , when they collide and stick together. At what speed does the wreckage move if one car was driving north and one east?
asked by Anonymous 
Algebra
I have a word problem here. A batter hits a fly ball. A scout in the stands makes the following observations. Time (in secs) .75, 1.5, 2, 2.75, 3.25, and 4.75 Height (in feet) 77, 133, 160, 187, 194, and 169 1.What type of function best models this data?
asked by Student 
Social StudiesCheck My Answers Please
#1. Who was the African American who called the war with Mexico "disgraceful" and "cruel"? a) Santa Ana b) Frederick Douglass ****** c) Davy Crockett d) Sam Huston #2. When Mexico won its independence in 1821, it inherited the New Mexico province from
asked by Mindy 
Science
A scientist is trying to determine the identity of an element. It is highly reactive in water and forms an ionic bond with chlorine. It is also very shiny. The element is most likely 1. from group 17 2. from group 1 3. from group 15 4. a noble gas 3?
asked by Anonymous 
math(algebra)
A small college opened in 1999. In the linear model below, x represents the number of years after 1999, and y represents the student population. Interpret the slope. y = 576 + 173x Answer choices are::: A: An additional year of the college being open is
asked by amber 
Math
Please can you tell me how to find the percentage and probability
asked by Lily 
Statistics
Two of the biggest soft drink rivals, Pepsi and Coke, are very concerned about their market shares. The pie chart that follows claims that PepsiCo's share of the beverage market is 25%. Assume that this proportion will be close to the probability that a
asked by Aria 
science
4. a scientist exams a sample of an object from the solar system . there is evidence that the object included ice . the sample most likely comes from a(n) ( 1point ) a . Asteroid b. comet c dwarf planet d meteroroid
asked by hey 
Probability
Consider 10 independent tosses of a biased coin with the probability of Heads at each toss equal to p , where 0 < p < 1 . 1. Let A be the event that there are 6 Heads in the first 8 tosses. Let B be the event that the 9th toss results in Heads. Find P(BA)
asked by qwerty 
Probability
An ordinary deck of playing cards has 4 suits, with 13 cards of each suit. In many games, each of 4 players is dealt 13 cards at random. a. What is the probability that such a hand has each of the following? 1. Exactly 5 spades 2. Which is more probable,
asked by Anonymous 
Math
an airplane is flying a compass of 340 degrees at 325 mph. A wind is blowing with the bearing 300 degrees at 30 mph. Find the component form of the velocity, and find the actual ground speed and direction of the plane.
asked by Maddie 
Calculus Please help!
The altitude of a triangle is increasing at a rate of 2500 centimeters/minute while the area of the triangle is increasing at a rate of 3500 square centimeters/minute. At what rate is the base of the triangle changing when the altitude is 7000 centimeters
asked by ALI 
Chemistry
Urea (NH2)2CO is prepared by reacting ammonia with carbon dioxide. The byproduct is water. 637.2g of ammonia are reacted with 787.3 g of carbon dioxide. a. (15 points) Which of the two reactants is a limiting reactant? Show your calculations (including the
asked by Keni 
Biology
Which of the following is correctly matched with its tissue system? cortex/dermal tissue system cuticle/vascular tissue system phloem/dermal tissue system stele/vascular tissue system>>>> my choosen answer
asked by Help 
math
A hot dog vendor at the zoo recorded the average temperature and the average number of hot dogs she sold. The equation for the line of best fit for this situation is shown below. Based on the line of best fit, complete the following statements. The
asked by debby 
physics(extension)
A spiral spring of nature 20cm,has a scale pan hanging freely in its lower end. When an object of mass 40g is placed in the pan,its length becomes 21.8cm.when another object of mass 60g is placed in the pan,the length becomes 22.05cm. Calculate the mass of
asked by ogboyeb 
Analytical Chemistry
Match the following terms about analytical precipitations to their definitions: A.) Coprecipitation B.) Adsorption C.) Absorption D.) Gathering E.) Masking F.) Digestion G.) Peptization 1.) Inclusion or occlusion of impurities within a crystal. 2.) Binding
asked by Laura 
Precalculus
Find the sum of all possible values of the constant k such that the graph of the parametric equations x=2+4cos(s) and y=k4sin(s) intersects the graph of the parametric equations x=1+cos(t) and y=3+sin(t) at only one point.
asked by John 
Educational Technology and Online Learning
The field names in a database are also known as_____? Category or column headings The name of a row Individual cells in a database Records
asked by Anonymous 
accounting
Based on the financial statements for Jackson Enterprises (income statement, statement of owner's equity, and balance sheet) shown below, prepare the following financial ratios. All sales are credit sales. The Accounts Receivable balance on January 1,
asked by amber 
Chemistry
A cell was constructed with two lead electrodes. The electrolyte compartment is 1 M Pb(NO3)2 (aq). In the other compartment, NaI has been added to a Pb(NO3)2 solution until a yellow precipitate forms and the concentration of I ions is .5 M. The potential
asked by Anonymous 
Science
What is true about the element francium (Fr, atomic number 87)? Choose all that apply. A) It has seven valence electrons. B) It is likely to form ionic bonds. C) It is in Period 7. D) It is nonmetal. E) It is a metal. I think it is B, C, and E?
asked by Anonymous 
grammar
what is the sentence pattern for the followingThere is good reason to be thankful.
asked by ah 
Physics!
How much impulse stops a 46kg carton sliding at 3.0m/s when it meets a rough surface?
asked by Anonymous 
Math
. In 1991 the federal minimum wage was $4.25. In 1997 the federal minimum wage was $5.15. Find the rate of change (slope) for the federal minimum wage between 1991 and 1997.*Hint: let 1991 and 1997 be the domain and let $4.25 and $5.15 be the range
asked by Irene 
Science
2. Which step in the nitrogen cycle is accelerated at the beginning of the eutrophication process? (1 point) A) denitrification B) nitrogen fixation C) producer uptake of nitrogen*** D) consumer decomposition Am I correct?
asked by Nicole M 
Physics
In a twodimensional tugofwar, Alex, Betty, and Charles pull horizontally on an automobile tire at the angles shown in the picture. The tire remains stationary in spite of the three pulls. Alex pulls with force of magnitude 207 N, and Charles pulls with
asked by Molly 
Physics
A 2.00kg blob of putty moving at 3.00m/s slams into a 4.00g blob of putty at rest. Calculate the speed of the two stucktogether blobs of putty immediately after colliding
asked by Anonymous 
Geometry
A cylindrical water tank has a diameter of 20 feet and a height of 15 feet. How much water is needed to fill the tank?
asked by anon 
HELP!! ASAP!!
If r = 8 units and x = 8 units, then what is the volume of the cylinder shown above? A. 64 cubic units B. 512 cubic units C. 256 cubic units D. 2,048 cubic units
asked by Ayriana 
science
2. which of the following happens when a low  mass star runs out of fuel ? choose all that apply . ( 3points ) A ITS CORE BECOMES A WHITE DWARF B ITS OUTER LAYERS FORM a nebula , or vast cloud of gas and dust c its outer layers expand , and the star
asked by science464645645645!!!!!!!!!!! 
(I need alot of help in) Physics
So in physics lab we did an experiment with a cart with two different masses on a air track (practically eliminating kinetic friction). The track was tilted at 4 degrees. Using 4 photogates I got the speed of both gliders and the height at each point. I
asked by Michelle 
Probability
Statistics show that about 5% of all males are colorblind. Suppose that 20 males are selected at random. What is the probability that at least 4 of the 20 people are colorblind? My answer: I got 10.984 The answer key says 0.00257394
asked by Anonymous 
Chemistry
Carbonates react with acids to form a salt, water and carbon dioxide gas. When 22.1 g of calcium carbonate are reacted with sufficient hydrochloric acid, how many grams of calcium chloride will be produced?
asked by Doreen 
Economics
Which of the following results from having a nation having conflicting economic goals? A. the nationalizing of some industries B. the need to rank choices in order of importance C. the need for economic safety nets D. government regulation of domestic
asked by Amy 
Math
What is the volume of a sphere with a radius of 7 cm rounded to the nearest cubic centimeter a) 4,310 cm b) 1,437 cm c) 615 cm d) 359 cm
asked by Jazmine 
Physics
A planet has a mass of 6.15 × 1023 kg and a radius of 3.25 × 106 m. (a) What is the acceleration due to gravity on this planet? (b) How much would a 79.4kg person weigh on this planet?
asked by Elle 
physics
A force of 10.0 newtons acts at an angle 20.0 degrees from vertical. What are the horizontal and vertical components of the force?
asked by liseath 
English
Identify the underline potions following sentence The children built a sand castle that is underline while their father read the book answers are adverb clause, adjective clause, subordinate clause thanks
asked by snow 
Math
Forensic scientists use the lengths of certain bones to calculate the height of person. A bone often used is the tibia (t), the bone from the ankle to the knee. A man’s height (h) is determined from the length of this bone using a function defined by the
asked by Silvio 
Algebra
find the amount of money accumulated if you invested $10,000 at 5.4% interest for 8 years compounded continuously.
asked by Chake 
Physics
A ship is travelling due east at 10 m/s. What must be the speed of a second ship heading 30 degrees east of north if it is always due north of the first ship?
asked by Neal 
Probability
Clara Nett is quite good and figures that her probability of playing any one note right is 99%. The solo has 60 notes. a. What is her probability of each of the following? 1. Getting every note right. My answer: 0.547 I am stuck on problems 25 because
asked by Anonymous 
physics
A stone is projected vertically upward with a speed of 30m/s from the top of a tower of height 50m neglecting air resistance. Determine the maximum height reached from the ground
asked by ogboye 
math
Joe spent 25% of his money on food. He spent 25% of the remainder on drink. He had $9 left. How much money did Joe have to start?
asked by Kathy 
Mechanics
A light inextensible string, which passes over a fixed smooth peg A, is fastened at one end to a small ring R of mass 0.1kg and at the other end to a particle P of mass 0.3kg. The ring is threaded on a fixed rough vertical wire and the system rests in
asked by Abdel moniem 
Calculus Please help!
At noon, ship A is 50 nautical miles due west of ship B. Ship A is sailing west at 18 knots and ship B is sailing north at 23 knots. How fast (in knots) is the distance between the ships changing at 3 PM? (Note: 1 knot is a speed of 1 nautical mile per
asked by ALI 
Precalculus
Let G be the graph of the parametric equations x=cos(4t)and y=sin(6t). What is the length of the smallest interval I such that the graph of these equations for all t in I produces the entire graph G?
asked by John 
Algebra 1
2x4y=32 2x8y=48 Find the solution of this system of equations.
asked by Help me with homework 
Algebra
Hiya! I have a function here: y = x^2  4x  32 I have some questions about it. 1. I think this parabola opens up. Am I correct? Can you explain how you know weather it opens up or down? 2. Can you tell me what the axis of symmetry and the vertex of this
asked by Student 
Physics
A 1.2kg blob of putty moving at 4.0m/s slams into a 1.2kg blob of putty at rest. Calculate the speed of the two stucktogether blobs of putty immediately after colliding. Express your answer to two significant figures and include the appropriate units.
asked by Kassie K. 
English ms sue
Please check answers! From the words below, supply the words needed to complete the sentences. Tactless, unfathomable, tacit A. While there was a TACIT agreement in the group that Fran's comment to the professor was TACTLESS and perhaps even cruel, the
asked by Anonymous 
biology
list all the molecules in the process transcription
asked by anonymous 
Precalculus
A lattice point is a point with integer coordinates. How many lattice points (x,y) with 100 less than or equal to x less than or equal to 100 and 100 less than or equal to y less than or equal to 100 are on the graph of the parametric equations x=3040
asked by John 
calculus
Find the asymptote, interval of monotonicity, critical points, the local extreme points, intervals of concavity and inflection point of the following functions. Sketch the graph. a)f(x)=x2 +x2
asked by Ayk 
physics
Find a relationship between the velocity of a mass falling vertically onto a nail and the depth the nail travels in the wood.
asked by Punky 
English ms sue
Please check answers! From the words below, supply the words needed to complete the sentences. Cacophony, carp, heretic, philistines, sullen. A. Although Jenny liked rock music, her parents described it as a great CACOPHONY and insisted she turn it off.
asked by Anonymous 
Statistics
Assume it is known that the probability of birth is equal in all months. What is the probability that in the STAT class of 120 students, exactly 20 students have their birthdays in either August or September? Solve using (i) the exact Binomial
asked by Lee 
Trig
Prove the following: 1/(tanØ  secØ ) + 1/(tanØ + secØ) = 2tanØ (1  sinØ)/(1 + sinØ) = sec^2Ø  2secØtanØ + tan^2Ø
asked by McKenna Louise 
English
Identify the participle phase Removing the hook she gently put the fish back into the water?answers are removing the hook, she gently put, put the fish back, into water, thanks
asked by snow 
English
Hi can you check my topic sentences? Antigone and Creon argue as she fights for the gods and he fights for his beliefs, resulting in the division of the city. Despite of the many warnings he receives, Creon’s discounting of prophecy produces destruction
asked by annonymous 
Help!
Read this sentence from "Kids in Action: Dalie Jimenez." "She decided to lobby to restore funding.” In which of the following does the word restore have the same meaning as in the sentence above? A. Renee was hired to restore the antique paintings in the
asked by Annabelle Snider 
MATH
SIMPLIFY. 4 TO THE 4TH POWER TIMES 4 TO THE 2ND POWER.
asked by amber 
physics
A first capacitor is initially connected to potential source ?. The charged capacitor is then removed from the source and connected to a second initially uncharged capacitor. Determine the final potential across the first capacitor long after the switch is
asked by CJ 
math
If the interest on a sum is compounded quarterly, which of the following is necessarily true? a) The effective rate of interest is same for every year. b) The ratio of interest for the (m + 1) th year to m th year will be same as the ratio of interest for
asked by Tarun 
statistics
A survey among US adults of their favorite toppings on a cheese pizza reported that 43% favored pepperoni, 14% favored mushrooms, and 6% favored both pepperoni and mushrooms. What is the probability that a random adult favored pepperoni or mushrooms on
asked by Anonymous 
phi208 Ethics and moral reasoning
What are some relativistic beliefs that you have or that you find in society? What are those ethical beliefs and how do people justify those beliefs? Using the articles from Mary Midgley and James Rachels, present a critique of those relativistic beliefs.
asked by lo 
Social Studies
#1. Who was the backwoodsman who lost his life at the Alamo? a.) Sam Houston b.) Davy Crockett ****** c.) John Tyler d.) Stephen F. Austin #2. What policies contributed to tensions between Texas and Mexico? a.) The Mexican government limited immigration to
asked by Mindy 
math
ʃ ( tanx + cotx )² dx
asked by zainab 
math
There exist irrational numbers a and b so that a^b is rational. look at the numbers √2^√2 and (√2^√2)^√2 a) use similar idea to prove that there exists a rational number a and an irrational number b so that a^b is irrational b) prove that if
asked by excel 
operating system
What is the difference between MsDOS and Ms WINDOWS?
asked by Anonymous 
hardware
Difference between disk operating system and windows operating system?
asked by Chandan kumar 
Art History
The question says "Review what you learned about Stonehenge and the cave paintings that were found in Spain by the two boys. Which is a greater achievement of these time periods?" Who are the two boys? I can't seem to find anything about them in my
asked by Kylee 
accounting
A light truck is purchased on January 1 at a cost of $27,000. It is expected to serve for eight years and have a salvage value of $3,000. Calculate the depreciation expense for the first and third years of the truck's life using the following methods. If
asked by amber 
Algebra
Two positive numbers differ by 11. When the larger number is divided by the smaller, the quotient is 2 and the remainder is 4. what are the numbers
asked by Jay 
Current World History
1. Why has there been weeks of protesting in Kiev, Ukraine? 2. What happened with the president of Ukraine, and why? Please and thank you in advance for any help given!
asked by Alex 
Calculus Please help!
Gravel is being dumped from a conveyor belt at a rate of 30 cubic feet per minute. It forms a pile in the shape of a right circular cone whose base diameter and height are always the same. How fast is the height of the pile increasing when the pile is 24
asked by ALI 
English
There isn't (any,no) newspaper in that little town. I think any There wasn't (anybody,nobody)in the house. I think anybody Please don't ask him (any,no)questions. I think any I haven't solved(any,none) of my problems. I think any
asked by Anonymous 
thermodinamics
2. A sample of an ideal gas underwent an expansion against a constant external pressure of 1.0 bar from 1.0 m3, 20.0 bar, and 273 K to 100.0 m3, 1.0 bar, and 273 K. What is the work done by the system on the surroundings
asked by dhaval 
English ms sue
Please check answers! From the words below, supply the words needed to complete the sentences. Gullible, callous, perfidy, gruff, haphazard, peripheral, succinct. A. While some people thought joe had been GULLIBLE to fall for that old trick, others labeled
asked by Anonymous 
Math:Probability
The probability of having homework over the weekend in math is 0.9,history is 0.6, and Spanish is 0.75. 1. What is the probability of having exactly one class that gives homework? Is this a nCx problem? I got an illogical answer: 10.54=1054% THIS IS NOT
asked by Anonymous 
Calculus Please help!
The linearization at a=0 to sqrt(1+2x) is A+Bx where A is____ and where B is _____? A=? B=? Ty
asked by ALI 
Trig
Verify the given equations: ____1______ + ____1_______ = 2 tanθ tanθ – secθ tanθ + secθ 1 – sinθ = sec2θ – 2 secθ tan θ + tan2θ 1 + sinθ
asked by McKenna Louise 
Algebra 2 Help
1.) Solve for x. 2x(x  12) = 40 2.) Solve for x. 3x2 + 2x = 12  7x 3.) Simplify the expression. 8sqrt[63] 4.) Find the absolute value of the complex number. Abs Val [7 + 24i] 5.) Simplify the expression. [4  7i] + [2 + 3i] Thank you so much!! :)
asked by Chloe 
maths literacy,geography,lifescience,,agricultural
which career can i pick with this subjcts
asked by sheila 
science
Explain the difference between the ovarian cycle and the menstrual cycle ??
asked by Iqbal 
science
3.what hormone stimulates the thickening of the endometrial tissue? 4.Describes what occurs to the follicle around day 13 and 14 ? what is this process called ?
asked by Iqbal 
science
.What happens to the endometrial tissue if the egg does not get fertilized ?
asked by Iqbal 
physics
A boy,who weighs 2N was carried by his father,on his shoulder during a football match.if the match last for two hours,how much work is done by the father?
asked by ogboyeb 
Math
A shirt originally cost $54.04, but it is on sale for $43.23. What is the percentage decrease of the price of the shirt? If necessary, round to the nearest percent.
asked by Anonymous person 
English
She hasn't said (anything, nothing) about her accident. I think anything Hardly (anything,nothing) pleases him. I think anything There aren't (any,no) pears in the supermarket. I think any
asked by Anonymous 
English
We haven't(any,no) more packages to wrap. I think any Wasn't there(anyone,no one) at home? I think anyone My dag has never harmed (anybody,nobody.) I think anybody They seldom have (anyone,no one) abasent from their meeting. I think anybody There
asked by Anonymous 
statistics
When calculating a confidence interval for the difference between two means, what information are you gaining? The means are from both same population and different? Thank you.
asked by Jamie 
Math
The attendace at the harmony school carnival has shown a range of 200 people during the years 2008 through 2011.Which graph could show the carnival attendance correctly?
asked by Anonymous 
Statistics
When calculating a confidence interval for the difference between two means, what information are one gaining?
asked by jamie 
Math
A trucker on the interstate travels 32 miles in 30 minutes. At this rate, how far will the truck travel in 4.5 hours?
asked by Carlotta 
Math
Assume you are working on a house the length of the house is 50 feet, the width is 30 feet, and from the ground to the gable is 10 feet. The height of the triangle prism on top is 6.5 feet. If you are going to shingle the roof of this house, how many
asked by Logan 
Physics
A rock is thrown horizontally from a bridge hits the water below 30 meter away in the horizontal direction. If the rock was in the air 2seconds, how tall is the bridge?
asked by Anonymous 
chemistry
what is the disadvantage of nh4oh
asked by pacot jamel 
Science please help
what do we mean when we say that atoms bond? What particles in an atom are responsible for bonding? Table sugar or sucrose is a compound that has the chemical formula C12 H22 and O11 would another chemical made of the same elements still be considered to
asked by Anonymous 
PreCalculus
Phil Dawson is a professional place kicker for the Cleveland Browns. On average, he kicks the ball at a 41 degree angle with an initial speed of 70 feet per second. For future reference, goal posts are 10 feet high in the NFL. a) Write parametric equations
asked by Alexis 
Math
Use roster notation to create and write two proper subsets of your original set. 3. Do the following and write your answers in roster notation. •Find the union of the sets. •Find the intersection of the sets. •Find the complement of each of the sets.
asked by Heather 
remainder theorem and factor theorem
X^3+4x^2a6xa^2+7a^3÷3xa
asked by dorcas 
science
1.Approximately how long (in days)is the female reproductive cycle?? Describe the structure that is 2.illustrated at the bottom of the diagram .What is it called ?
asked by Iqbal 
physics
I'm driving along at a constant speed in my 3 meter long car when I notice that I am accidentally driving through a red light. If the rear of my car passes under the light 0.3 seconds after the front of my car, how fast am I driving in m/s?
asked by yogesh 
chemistry
Given an approximate wavenumber of 2000cm1 for CN, calculate the approximate force constant for a single bond. i used the formula v= (1/2(pi)c) * sqrt(k/u) where pi is 3.14, c is the speed of light, k is the force constant and u=mu, which is the reduced
asked by wavenumbers & force constant 
math
simplfy 3 root 3/8
asked by winston 
Chemistry
The values on the label of a bottle of nitric acid are specific gravity 1.42 and assay 60%. Use these values to determine the molarity of the solution. Show your work.
asked by Kristy 
Calc help
lim x> infinity (7x^(5/3)2x^(1/3)+6)/(2x^(8/5)5x+square root(x)) I tried every possible way to find the answer But I couldn't find it. Can someone help me with this question? Step by step please!! Thank you!
asked by Kesha 
English
Prior knowledge of what subject would help the reader understand "Rosa Parks: My Story"? A.segregation laws
asked by Annabelle Snider 
Math (Statistics)
The SAT scores of a certain population of students are approximately normally distributed with a mean and standard deviation of 1000 and 200 points, respectively. The probability that a student selected at random from the population has an SAT score
asked by Nakia Speaks 
English
I haven't done(anything,nothing) to offend Greg. I think anything We don't have (any,no)match for the opposing team. I think any Our team wasn't (any,no)match for the opposing team. I think any
asked by Anonymous 
English
I couldn't hear (anything,nothing) because of the airplane's noise. I think anything The salesperson didn't have (any,no) samples on display. I think any I haven't (any,no) money with me. I think any Hasn't he cooked (any,none) of the pasta? I think any
asked by Anonymous 
Math 302
There are 7 different books on a shelf. How many selections of more than 4 books can be made?
asked by Ashley 
Calc Help Please
I did some of them so can you help me with the rest. Consider the piecewise functon f(x) = (4x^23)/(3x^215) x2^+ f(x)= 0 f(2)= 0 f(4) = 5 list the values of x for which f(x) is not continues= ???????
asked by Tim 
math(algebra)
Find the distance between A and B. A= the coordinates ( 6, 1) B= the coordinates ( 2, 3) answer choices are: A. 8 units B. 16 units C. 2 times the square root of 2 units D. 4 times the square root of 2 units
asked by Ayriana 
STEVE!! CAN YOU PLEASE TELL ME HOW U GOT CHOICE D?
Find the distance between A and B. A= the coordinates ( 6, 1) B= the coordinates ( 2, 3) answer choices are: A. 8 units B. 16 units C. 2 times the square root of 2 units D. 4 times the square root of 2 units
asked by Ayriana 
Science 3 quick questions
what do we mean when we say that atoms bond? What particles in an atom are responsible for bonding? Table sugar or sucrose is a compound that has the chemical formula C12 H22 and O11 would another chemical made of the same elements still be considered to
asked by Anonymous 
Science
What would happen to an electric motor if the direction of the electric current in the armature did not change directions? Explain. I have read my textbook and googled it and I dint understand what would happen. Please help. Thank you
asked by Cherie 
Algebra
1. Parent Quadratic Equation 2. Coordinate of the vertex 3. quadratic formula A. b/2a B. y = 2x C.b^2  4ac D. y = a(x  h)^2 + k E. x = b +/ (square root of) b^2 4ac/2a I think the answers are: 1. B 2. C 3. E Are these correct? Thanks!
asked by Student 
English ms sue
Can you check my analogies? 1. Observatory: telescope:: A. Lavatory: hands B. book: idea C. Theory: scientist D. Letter: alphabet Is it b? 2. Twilight: dusk:: A. Dinner:lunch B. marriage: children C. Texture:touch D. Dew: morning Is it c? 3. Scene:act:: A.
asked by Anonymous 
Algebra 2
1.) Solve for x. 2x(x  12) = 40 2.) Solve for x. 3x2 + 2x = 12  7x 3.) Simplify the expression. 8sqrt[63] 4.) Find the absolute value of the complex number. Abs Val [7 + 24i] 5.) Simplify the expression. [4  7i] + [2 + 3i] Thank you so much!! :)
asked by Chloe 
Algebra 2 Help!
1.) Simplify the expression. [sqrt3 + 2i][sqrt3  2i] 2.) Solve using the square root property. (y  4)2 = 18 3.) Rewrite the the function in vertex form. You may use completing the square or an alternate method. f(x) = 5x2  10x + 3 4.) Use the
asked by Lori 
SCIENCE
Will someone please help me find information on facial reconstruction?
asked by ANGELA 
general
Does anyone have any ideas on masquerade? Pupils are 15 years old and there are 26 of them.They have to dress up and present themselves to the jury. What can they do? Maybe dress up as famous people and perform an act?
asked by zerta 
science
the astronauts can live for long periods of time in a space station? my answers is yes.
asked by Anonymous 
Math
The Mills Lunch Shop prepares fresh takeout entrees each day. On Tuesday, 40 baked chicken dinners were prepared at a cost of $3.20 each. A 20% spoilage rate is anticipated. Mills Lunch Shop sells the dinners at an 80% markup based on cost. They decided
asked by jnet 
Calculus Please help!
The differential of the function y=(x^2+6)^3 is dy=______dx. When x=2 and dx=0.05, the differential dy=_______? A) dy=______dx? B) the differential dy=_______?
asked by ALI 
math
Two numbers have a product of 3 and 1/5 and a sum of 3 and 3/5 what are the numbers
asked by teresa 
math
i need help with this problem 2ã20x + 3ã5x
asked by emilys mom 
math
I need help with this 5ã3+2ã75
asked by emilys mom 
PreCalculus
Jake serves a volleyball with an initial velocity of 32 feet per second from 4.5 feet above the ground at an angle 0f 35 degrees. a) Write parametric equations to model the situation. b) How far will the ball travel( if it hits the ground)show work
asked by Alexis 
PreCalculus
Write Parametric equations of 3x+1/2y=2
asked by Alexis 
science
Which statement is true regarding the cost of climate change adaptation discussed in the text? (Points : 1
asked by Simone 
math
elp please (ã6+ã2) (ã6ã2)
asked by emilys mom 
MATH
HELP PLEASE (ã6+ã2) (ã6ã2)
asked by emilys mom 
Living Environment
Generally speaking,What is the female reproductive cycle??
asked by Iqbal 
Algebra 1 (Reiny)
Factor each polynomial by grouping. Check your answer. 1. 2r^2  6r + 12  4r
asked by Anonymous 
Calculus Help
Use f(x)= 1/(square root(x)+1) to answer the following;  Use the difference quotient f'(x)=lim z>x (f(x)f(z))/ (xz) to find f'(x)! Please show steps!!! Thank you!!!
asked by Mello 
English
Ms Sue I think it it into water
asked by snow 
Science
What three things can be done to increase the speed and power of a St.Louis electric motor?
asked by Cherie 
Geometry
What is the height of a cylinder with a volume of 384π cubic inches and a radius of 8 inches? Round to the nearest tenth of an inch.
asked by anon 
Maths
The diameter of wheel is 28 cms .how many revolutions will it make in moving 1100 m
asked by Swarada 
math
need help 3x^2sqrt(5x) * 3sqart(3x^3)
asked by winston 
Algebra  Functions
Find the domain: a) [sqrt(x+3)]+[5x^2180] b) [sqrt(x+3)]/[5x^2180] c) (8x+9)(9x+8) d) (8x+9)/(9x+8) e) [sqrt(x+2)](5x^2245) f) [sqrt(x+2)]/(5x^2245)
asked by Gregory 
English
Which is the correct word The suspect wouldn't admit (anything, nothing.) I think anything I don't know (any, none) of the people on this bus. I think any Rosa couldn't do (anything, nothing) about changing the time of our program. I think anything.
asked by Anonymous 
English
We didn't have (any, no)printed programs. I think any I don't want (any,no) cereal for breakfast this morning. I think any You must no speak to (anyone, no one)about our surprise party plans. I think anyone
asked by Anonymous 
English
There isn't (any,no) ink in this pen. I think any Didn't you make (any,no) copies for the other people? I think any I haven't had (any,no) time to repair the lawn mower. I think any
asked by Anonymous