
Math HELP!
If f(x)=3x^2 2x 3, let g(x)=f^1(x). Find the slope of g(x)=f^1(x) at the point (5,2). a.) g'(5)=1/10 b.) g'(5)=1/5 c.) g'(5)=1 d.) g'(5)=2 I can't understand how to figure out this problem because I am unable to find a derivative for the function. How
asked by Ellie on July 3, 2016 
Precalculus
Let a and b be real numbers. The complex number 4  5i is a root of the quadratic z^2 + (a + 8i) z + (39 + bi) = 0. What is the other root? I tried working this problem and so far I got that (a+8i)  (45i)= (39bi)/(45i). Im not sure how to solve this
asked by Aditya on August 13, 2014 
Problem solving:for 3rd grade
Write a realworld problem that you can solve by adding or subtracting.Then give your problem to a classmate to solve.
asked by Jon on October 26, 2012 
Calculus
Show that y= x + sinxpi satisfies the initial value problem dy/dx=1 + cos x, y(pi)= 0 i don't understand how to do this problem. i don't know where to begin.
asked by Dan on November 18, 2008 
algebra
explain why a solution of a word problem should be checked using the original wording of the problem and not the equation written from the wording
asked by k on April 12, 2011 
algebra
Hi! i don't get this problem... I was wondering if you could help. The problem is: xy=9 3x+(y+4)=51 What is S and what is L?
asked by Jason on September 21, 2007 
Algebra
Let say the problem is (x+2)(x2). Would I distribute the () to the (x2) before I FOIL or is the problem saying x+2x+2? Thanks
asked by Shadow on February 7, 2012 
Math
I need help with an equation problem  12÷x = 3 How do I work this problem?
asked by AMY on June 13, 2012 
Algebra 2
problem: 4x^324x would this be the answer to the problem? 4x(x^26)
asked by Khola on January 10, 2011 
algebra
Find x when x=20 x=20 is this answer right. I do not how to do this problem I need help. {3(58)3}{1(26)}=15+92+6 help with this problem.
asked by Johnnie on February 18, 2009 
Algebra 2
problem: 4x^324x would this be the answer to the problem? 4x(x^26)
asked by Khola on January 10, 2011 
Algebra help
I need help solving this problem 1/5(2x  10)+4x= 3(1/5x +4) Can someone at least walk me through this problem? Please and thanks!
asked by Anonymous on February 16, 2016 
algebra
Help me solve this problem please, I have tried so many time.I can not seem to get the problem right. x +12 2 x+ 12 < 8 =x +12 > 2 x =4 > 10 is this right
asked by Elaine on April 5, 2009 
dma 040
Problem 1: Solve 3x8y=19 for y y= Problem 2: A=P=PRT for R R=
asked by Anonymous on September 17, 2013 
Algebra 2
problem: 4x^324x would this be the answer to the problem? 4x(x^26)
asked by Khola on January 10, 2011 
Chemistry
The hydroxyl radical (OH) is an important oxidizing agent in the atmosphere. At 298 K the rate constant for the reaction of OH with benzene is 1.24 1012 cm3 molecule 1 s 1. Calculate the value of the rate constant in L mol 1 s 1. This is what I tried:
asked by Anonymous on November 1, 2010 
physics
why , regardless of the magnitude of the initial velocity, the maximum horizontal displacement for a projectile occurs when the angle is 45 degrees. Specifically, what happens when the angle is increased or decreased. How would you mention vector
asked by Madi on February 3, 2016 
chemisrty
Suppose that 0.490 mol of methane, CH4(g), is reacted with 0.640 mol of fluorine, F2(g), forming CF4(g) and HF(g) as sole products. Assuming that the reaction occurs at constant pressure, how much heat is released?
asked by khari johnson on April 12, 2017 
MATH
The FritzHughNagomo equation occurs in many apps such as biology, genetics and heat transfer. In the 1D case, it can be written as du/dt = d^2/dx^2 + u(u1)(λu) where λ is constant. Show that this eqn supports a travelling wave u(x,t) =(Ae^n1 +
asked by Mr Maverick on May 19, 2016 
percentage
In an exam every question correctly answered fetches 2 marks. Every question wrongly answered loses 1 marks. unanswered question have no marks associated with them. ram and shyam wrote this exam. ram attempted a certain number of questions and 30 % of them
asked by vipul on October 4, 2016 
Chemistry
A certain substance undergoes decomposition by a firstorder reaction which has equal to 30.0 minutes. If the initial concentration of the substance is 1.28 mol/liter, what will its concentration be after 2.50 hours? 1. 0.36 M 2. 0.040 M 3. 0.32 M 4.
asked by Jim on October 2, 2015 
English
I need to select any writer and come up with five good questions. Example: Edgar Allen Poe 1. What was Poe's early life like? 2. What became of the women in his life? 3. What is tuberculosis and how does it kill people? 4. Was Poe mentally ill? 5. What
asked by Kaai97 on May 12, 2016 
Determining Probabilities
A spinner is divided into 4 sections of equal size labeled with the numbers 1, 2, 3, and 4. You spin it 3 times and get the following results: 1, 4, 3. Which of the following is true? The theoretical probability of getting a 1 is 25%. The experimental
asked by Jamar on February 18, 2014 
biostats
Suppose we divide the patients according to whether or not they received antibiotics, and calculate the mean and standard deviation for each of the two subsamples: answers: x, s, n x sd n Antibiotics 11.57, 8.81, 7 No antibiotics 7.44, 3.70, 18
asked by maria on July 22, 2017 
MATH
Solve each questions by age equation problem: 1. Jonathan is 3 years older than Alvin. In 7 years, Alvin's age will be 6/7 of Jonathan's age. How old are they now? 2. The present age of Ella's mother is three times that of Ella. After 5 years. Sum of their
asked by Camz on March 2, 2016 
college physics
If a is acceleration, v is velocity, x is position, and t is time, then check the validity (wrong or correct) of the following equations using dimensional analysis: a) t2 = 2x/a b) t = x/v c) a = v/x d) v = a/t ALSO , The term 1/2 PV^2 rv2 occurs in
asked by ayan on October 2, 2010 
Statistics
Sarah took a Statistics midterm which consisted of 13 multiple choice questions. Each question had 6 possible response options. Sarah answered 8 of the 13 questions correctly. Assume that Sarah had the same probability of getting each question correct.
asked by Eric on February 19, 2011 
math
) Among the integers from 1 to 10, 000, 000, 000 which are there more of: Those in which the digit 1 occurs or those in which it does not occur? please prove
asked by teach on February 9, 2015 
Algebra
A $4,000 principal is invested in two accounts, one earning 3% interest and another earning 4% interest. If the total interest for the year is $126, then how much is invested in each account?
asked by J on March 17, 2017 
physics
Each of the four wheels of a car push on the road with a force of 4.0*10^3 N [down]. The driving force on the car is 8.0*10^3 N [W]. The fictional resistance on the car is 6.0*10^3 [E]. Calculate the following A) the mass of the car B) the net force on the
asked by Maggie on March 29, 2012 
Science (Someone please check my answers)
I've been waiting all day so can someone please check my answers. Key: *** means my answer 1. If the net force on an object is 0 N, the forces are considered unbalanced. (1 Point) True False*** 2. Most people in the United States use feet and miles to
asked by Beyblade Burst is Awesome on March 29, 2018 
6th grade Math
Shelley compared the number of oak trees to the number of mable trees as a part of a study. She counted 9 mable trees to every 5 oak trees. Later in the year there was bug problem and many trees died. New trees were planted to make sure there was the same
asked by Harms on November 5, 2015 
Math
The average 3rd grafe student can read 60 words in 5 min. What is the average rate per minute? Write an expression to represent the problem. And solve the problem:
asked by Amy on February 8, 2016 
Calc
y=ln(x+1) +ln(x1) find dy/dx I have trouble with this problem since i'm not that familar with finding the derivative when they involve ln. Please show me how to solve this problem. I should have gotten 2x/(x^21) The derivative of ln(x) is 1/x So, you
asked by Brian on January 18, 2007 
math
suppose that we agree to pay you 8cents for every problem in this chapter that you solve correctly and fine you 5cents for every problem done incorrectly, if the end of 26 problems we do not you each other any money, how many problems did you do?
asked by i love polka on November 12, 2008 
Life orientation
In 40 to 45 lines critically discuss five ways in which the human or environmental problem impacts problem impacts on the community.provide relevant sources to support your claims
asked by Soniah on April 24, 2012 
math
Hello i have a probability problem that i can slove, and i need some help please. problem: If a mother has three bananas, two pears and two oranges, in how many different ways can she give the fruit to her daughter in one week, one piece of fruit per day?
asked by Bikie on March 25, 2011 
Science
This step includes recording data, taking photos, and coordinating information. Make a hypothesis Make a prediction Observe the problem*** Define a problem
asked by Kaai97 on January 12, 2016 
Math
The average 3rd grade student can read 60 words I 5 minutes. What is the average reading per rate? Write an expressionto represent the problem. Solve the problem
asked by Amy on January 11, 2017 
Chemistry
What are the concentrations of A– and HA after 24 mL of 0.33 M hydrochloric acid solution is added to 86 mL of a solution that has [A– ]=0.67 M? Do NOT consider any equilibrium reactions in this problem. A–(aq) + HCl(aq) → HA(aq) + Cl–(aq) How do
asked by John on March 31, 2013 
algebra problem that is causing me headaches
I have no real method for this problem other than trail and error and foil. I have come up with some amny variations until I am on my second sheet of paper! The closet I have gotten to factoring/solving this problem so far is.... #46.) 3t^3+3t^26t
asked by Shawn H. on September 20, 2007 
algebra 2
Im not sure how to do this problem. cansomeone help. it the only problem im stuck on . . Describe the graph by indicating the vertex, the type of line drawn, broken or solid, and the shading of the graph, above or below : y+1>abs(x+3)
asked by day on October 26, 2012 
progamming JAVA
1.Write an algorithm, in English, to solve the following problem. Be sure to include pre and postconditions! 2.Problem: Solve X mod Y for all positive integers. Do so without using multiplication or division. 3.What is (7 / 3) + (4 % 5)?
asked by Johny on April 17, 2010 
math
An isosceles right triangle has legs of equal length. If the hypotenuse is 22 inches long, find the length of each leg. Please help me on this problem so bad!!! I NEED AN ANSWER TO THIS PROBLEM IMMEDIATELY!!!! :(
asked by Andrea on November 16, 2018 
trig
On a typical day at an ocean port, the water has a maximum depth of 18m at 6:00 am. The minimum depth of 9m occurs 6.8 hours later. Write an equation to describe the relationship between the depth and time.
asked by Sam on April 30, 2014 
EnglishGrammar
The underlined words (I put them in parantheses) are an example of a(n) ___________. (When the earth, moon, and sun are in line), an eclipse occurs. A. adverbial clause B. adjectival clause C. noun clause My answer is C.
asked by anon on November 19, 2012 
Chemistry
Elemental sulfur occurs as octatomic molecules, S8. What mass of fluorine gas is needed for complete reaction with 24.1 g sulfur to form sulfur hexafluoride? I don't know where to even start with this question
asked by Ashley on March 9, 2016 
2nd grade
Okay, my child is doing problem solving lesson 57 in scott foresman addison wesley book. The question that we are having a problem with is a number line. there are 10 spaces in the number line and the clues are: Clue 1: the number are between 70 and 82
asked by Dawn on January 20, 2009 
phyics
i need help setting it up to find the answers. (answers included) two masses are connected together by a string which is then hung over a pulley. m1= 7.50 kg and m2= 6.50 kg. before they are released m1 is suspended h= 135cm above the floor while m2 is
asked by danielle on November 2, 2010 
statistics
Which of the following statements is correct? A. An extremely small pvalue indicates that the actual data differs markedly from that expected if the null hypothesis were true. B. A large pvalue indicates that the data is consistent with the alternative
asked by scott on April 25, 2014 
Behavior problems (dogs)
Please check my answer thanks A prospective client phones about her dog's behavior problem. When they go for a walk, the dog starts out walking nicely, until it finds an interesting scent. Then the dog stops and refuses to budge. She's a large dog, and the
asked by Kai on October 6, 2008 
math,correction
problem #50 Perform the indicated division. Rationalize the denominator if necessary. Then simplify each radical expression. (18+radical (567))/(9) My answer: 2+ radical (7) or 2radical (7) Problem # 52 (9radical(108))/(3) My answer: 32radical(3)
asked by jasort20 on March 21, 2007 
12th grade physic
Q. A satelite is in a circular orbit around the earth with a period of 6.0 hours. A retrorocket thruster is fired which slows the satelite down to half its speed and places it in a new orbit. G = 6.67 x 10 power of 11 N.m2/kg2 mass of earth = 5.98 x10
asked by orange on October 15, 2008 
english
Recall that a participle is a verb form that is used an adjective. A participial phrase is a participle with its modifers and complements used as an adjective. 1. Read the following sentence. The cars passing by are filled with commuters. Which of the
asked by Angela Myers on May 8, 2012 
poetry/song
My group member and i changed some lyrics with this christmas song so it relates to something about gov. Congress, You better watch out, You better not cry, You bettre not pout, We're telling you why The veto is coming to town He's reviewing your bill and
asked by Song for AP Government on December 16, 2010 
Law & Ethics
I am working on a research paper for a course I am taking through Penn Foster. I have to answer several questions but I don't know if I am supposed to write the questions on the report, or just answer them ..you know..using the correct paragraph format;
asked by Jamie on December 7, 2009 
Math Analysis
Can someone check my answers please? Thank you! If tan x = 3/5, evaluate: 1) tan 2x 2) tan 3x ==> For #1, I got 15/8; for #2, I got 99/5. Are these answers correct?
asked by Emily on May 25, 2010 
History
Word Bank : Popular Sovereignty, Republicanism, Federalism, Separation of Powers, Checks and Balances, Limited gov, Individual Rights 1. aidivion of power between the states and federal gov some power is reintaed for the federal gov some for the states and
asked by M on December 13, 2014 
Macroeconomics
Suppose the Fed wishes to use monetary policy to close an expansionary gap. a. Should the Fed increase or decrease the money supply? b. If the Fed uses openmarket operations, should it buy or sell government securities? c. Determine whether each of the
asked by gerima on October 11, 2006 
balls in a bowl probability
Bowl one contains 3 black and 2 white balls. Bowl two contains 4 black and 5 white balls. Experiment: A ball is randomly selected from bowl one, its color noted, and it is placed in bowl two. Then a ball is randomly selected from bowl two. a.) What is the
asked by Aubrey on November 21, 2006 
Chemistry
Potassium permanganate, KMnO4, a common oxidizing agent, is made from various ores that contain manganese (IV) oxide, MnO2. The equation shows the net reaction for one process that forms potassium permanganate 2MnO2+2KOH+O2=2KMnO4+H2 What is the maximum
asked by Marissa on November 16, 2016 
english help immediately
Write about a time when you had to show respect for authority, even though it was difficult to do so. I need some ideas, thanks. Have you ever been angry with an authority figure  parent, grandparent, coach, teacher, principal, police, etc.? Did you show
asked by anonymous on October 16, 2006 
algebra
For a fixed rate, a fixed principal amount, and a fixed compounding cycle, the return is an exponential function of time. Using the formula, , let r = 10%, P = 1, and n = 1 and give the coordinates (t, A) for the points where t = 0, 1, 2, 3, 4. Round your
asked by Jade on March 9, 2007 
Math 115 ch8 sec8.3 #10
The graph and table below give the monthly principal and interest payments for a mortgage from 1999 to 2004. Use this information to predict the payment for 2005. 1999 $578 2000 613 2001 654 2002 675 2003 706 2004 730 2005 I have no idea of what I am doing
asked by Deb on December 18, 2008 
math
The principal ordered four pizzas for the twelve students of the month. If each pizza has 8 pieces, what is the ratio of pieces of pizza to students of the month? Reduce your answer to lowest terms.
asked by Anonymous on February 19, 2015 
Help Please Math
A principal of $2500 is invested,part at 8% per annum and the rest at 12% per annum. In a year, the 8% investment interest was doubled the 12% investment interest. How much invested at each rate? Express in the form Ax+By=C
asked by Matt on March 15, 2013 
algebra
For a given interest rate, simple interest varies jointly as the principal and time. If $2000 left in an account for 6 years earned interest of $960, then how much interest would be earned in 7 years?
asked by leinani on August 22, 2016 
Chemistry
An atom contains a total of 25 electrons. When the atom is in the ground state, how many different principal energy levels will contain electrons? a. 1 b. 2 c. 3 d. 4 I really don't get this because I thought energy levels went like 2, 8, 18, 32, and 50,
asked by timmy123 on October 16, 2010 
language arts
3.)Which principal part of the verb to know appears in sentence 1? The Sentence:Everything I know about gardening i learned from my good friend sandy. A.)Past Participle B.)Present Participle C.)Past D.)Present D?
asked by Shalee ^~^ on October 27, 2015 
Pure Mathematics
Find the modulus and principal argument of the complex numbers giving the argument in radians either as pi or a decimal correct to 2 decimal places c) i square root 3 2 ALL UPON 2i square root 3
asked by KerryJ on September 11, 2013 
Math
For a given interest rate, simple interest varies jointly as the principal and time. If $3000 left in an account for 6 years earned interest of $1260, then how much interest would be earned in 7 years?
asked by Larry on August 7, 2015 
3rd grade math
on one test, chi answered 76 out of 100 questions correctly. on another test, he answered test, he answered 7 out of 10 questions correctly. write these scores as decimals and compare them.
asked by mythreyee on January 29, 2013 
Maths
I have 40 questions, 4 marks given for a correct answer, 2 marks deducted for each wrong answer and 1 mark deducted for for each answer not attempted I attempt 19 and score 25 marks.how many questions did I get right
asked by Chris on November 18, 2014 
College essays  Law
Hi, I have three essay questions for my constitutional law class that have been stumping me for some time. 1) The Q: Justice Brown concluded in Plessy v. Ferguson that if "the enforced separation of the two races stamps the colored race with a badge of
asked by John on January 1, 2010 
English
1.)The Narrator's Attitude In ''The Girl Who Wouldn't Talk '' When She Begins To Antagonize The Quiet Girl Is That The Quiet Girl A. Is Deliberately Trying To Make The Girl Mad. B. Needs A Companion To Talk To. C.Is Not Very Intelligent. D.Is Weak And
asked by joshua on March 18, 2018 
Physics
On December 26, 2004, a great earthquake occurred off the coast of Sumatra and triggered immense waves that killed hundreds of thousands of people. Satellites observing these waves from space measured 800 km from one wave crest to the next and a period
asked by Anonymous on July 14, 2010 
Chemistry
Explain why iron corrodes more quickly in seawater than in freshwater. I'm getting conflicting answers from searching on Google; is it because the corrosion of iron is a redox reaction, which involves a transfer of electrons, and therefore this transfer of
asked by a Canadian on May 8, 2013 
Probability
Let X be a continuous random variable. We know that it takes values between 0 and 3 , but we do not know its distribution or its mean and variance. We are interested in estimating the mean of X, which we denote by h . We will use as a conservative value
asked by qwerty on April 21, 2014 
physics
1. You slowly lift a book of mass 2 kg at a constant velocity a distance of 3 m. How much work did you do on the book? I got 180 for this 2. A 15 kg crate is moved along a horizontal floor with a rope that makes a 30 degree angle with the horizontal. If
asked by Mei Lei on August 19, 2011 
Calculus
Let g be a function that is defined for all x, x ≠ 2, such that g(3) = 4 and the derivative of g is g′(x)=(x^2–16)/(x−2), with x ≠ 2. a.Find all values of x where the graph of g has a critical value. b.For each critical value, state whether the
asked by Gary on May 9, 2015 
@ Angie  math
Angie, I've reposted your question. You've posted this several times on other people's questions. That's called piggybacking here and we delete posts that interfere with others' questions. Name: Angie Subject: math Message: Chad climbs a 57foot tower to
asked by Ms. Sue on August 9, 2017 
English
Which of the following is a joining word? foreshadowing fourth for formerly Question 12 5 points Save Which of the following is a joining word? so how who Question 13 5 points Save I agree that we should do something to resolve the problem; ________ I am
asked by christopher on April 22, 2010 
P.E.
_______________ occurs when a person internationally uses drug improperly. A side affect Drug misuse*** Drug synergism Drug abuse Thanks!!
asked by Anonymous on May 8, 2015 
Physics
Let's say I put a very hot 100o C, 41 g cube of aluminum in 71 ml water at room temperature (20o C). What is the temperature of the water after equilibrium occurs
asked by sonia on April 26, 2011 
math  help please
Assume that 2 cards are drawn in succession and without replacement from a standard deck of 52 cards. Find the probability that the following occurs: the second card is a 9, given that the first card was a 9.
asked by sarah on July 6, 2013 
Chemistry
Explain why the type of metal used in creating fireworks determines the colour seen when the fireworks are set off. Discuss what occurs within the metal atoms.
asked by christine on August 18, 2010 
Physical Education
The search for identity usually occurs during a. early childhood b. middle adulthood c. late adulthood d. adolescence
asked by lol on December 17, 2014 
physics
please help: A repelling force occurs between two charged objects when the charges are of a. unlike signs b. like signs c. equal magnitude d. unequal magnitude
asked by physics on March 12, 2009 
Chemistry
Trial:  00020 M  00020 M  H2O(mL)   Fe(NO3)3 mL  KSCN (mL)   1  5  2  3 Initially (right after combining and before any reaction occurs) the concentration of
asked by Anonymous on April 13, 2008 
Moral Help
This is pretty irrelevant to subjects, but I've had a problem (no, not a math problem) that I could use some good advice on. Today I received a detention for messing around with a friend during a computer apps class. It's easy as hell, so I find it easy to
asked by John on September 18, 2007 
biology
The following statement is false. Select the rewording that makes the statement true. Dalton discovered electrons inside of atoms by using thermal energy. Thompson discovered electrons inside of atoms by using cathode rays. Thompson discovered electrons
asked by Angela on September 26, 2014 
equations
I am not great at equations... I keep practicing and working these problems and questions out but I always seem to get different answers can someone please guide me on how or tell me the correct way to work these problems out>> The linear equation y=0.15x
asked by Anonymous on October 26, 2009 
equations
I am not great at equations... I keep practicing and working these problems and questions out but I always seem to get different answers can someone please guide me on how or tell me the correct way to work these problems out>> The linear equation y=0.15x
asked by Anna on October 26, 2009 
math help
Posted by grant on Saturday, May 12, 2007 at 9:20am. The table shows the depth (d metres) of water in a harbour at certain times (t hours) after midnight on a particular day. time t (hours) 0 1 2 3 4 5 6 7 8 9 10 11 12 13 and the in the next column
asked by grant on May 12, 2007 
Calculus
Find two numbers such that the sum of the first plus three times the second is 600 and their product is a maximum. x + 3y=600 xy is a max. This is the problem statement. let U be the function equal to xy. U=xy = y(6003y) Now, maximize U (take derivative,
asked by Tezuka on September 30, 2006 
public speacking
A hypothetical example is: A. a false example. B. not real but can happen. C. an example used to prove a hypothesis. D. has no place in a speech.
asked by Buster on December 14, 2012 
English
A hypothetical example is: A. a false example. B. not real but can happen. C. an example used to prove a hypothesis. D. has no place in a speech. is it B
asked by Amy on April 5, 2013 
alegebra
Find a counterexample to show the statement is false. the whole number s are closed under division.
asked by zully on September 17, 2010 
Economics quick question
Is this false?? Prices in a competitive market tend to favor the producer over the consumer.
asked by Taylor on May 14, 2009 
alegebra
Find a counterexample to show the statement is false. the whole number s are closed under division.
asked by zully on September 17, 2010