Alec
Most popular questions and responses by Alec
Algebra
2 hour 40 min after a raft left pier A and traveled downstream, a motorboat left pier B and traveled upstream toward the raft. The two met 27 km away from B. Find the speed of the raft if the speed of the motorboat in still water is 12 km/hour and the
asked on April 3, 2016 
Finance
First Simple Bank pays 6 percent simple interest on its investment accounts. First Complex Bank pays interest on its accounts compounded annually. Required: What rate should the bank set if it wants to match First Simple Bank over an investment horizon of
asked on February 19, 2014 
Algebra
It took 4 hours for a biker to travel from one city to another going at a certain speed. On the return trip, the biker traveled at the same speed for the first 100km and then for the rest of the trip he traveled at a speed which was 10 km/hour slower than
asked on April 4, 2016 
Science
1.Explain the process of succession. 2.Describe how changes in an ecosystem can affect organisms that live there. 3.Describe the amount of time needed for ecosystem recovery If anyone would help me that would be great, websites, answers, anything at all.
asked on March 11, 2016 
Finance
Cochrane, Inc., is considering a new threeyear expansion project that requires an initial fixed asset investment of $1,860,000. The fixed asset will be depreciated straightline to zero over its threeyear tax life, after which time it will be worthless.
asked on March 24, 2014 
math
After its fastest rate of growth ever during the 1980s and 1990s, the rate of growth of world population is expected to slow dramatically in the twentyfirst century. The function G(t) = 1.58e−0.213t gives the projected annual average percent population
asked on July 19, 2012 
probability
Let È be the bias of a coin, i.e., the probability of Heads at each toss. We assume that È is uniformly distributed on [0,1]. Let K be the number of Heads in 9 independent tosses. By performing some fancy and very precise measurements on the structure of
asked on April 14, 2015 
Physics
one charge of +10 uC is placed at the origin, a second charge of +5uC is placed at (2cm, 4cm) and a third charge (15 uC) is placed at (4cm, 1 cm). What is the magnitude and direction of the electric force exerted on the first charge by the other two? I
asked on April 18, 2016 
Financial
Cochrane, Inc., is considering a new threeyear expansion project that requires an initial fixed asset investment of $1,860,000. The fixed asset falls into the threeyear MACRS class (MACRS Table). The project is estimated to generate $1,950,000 in annual
asked on March 24, 2014 
Finance
You have arranged for a loan on your new car that will require the first payment today. The loan is for $32,000, and the monthly payments are $620. Required: If the loan will be paid off over the next 60 months, what is the APR of the loan?
asked on February 19, 2014 
statistics
Suppose that fÈ and fXÈ are described by simple closedform formulas. Suppose that È is onedimensional but X is highdimensional. a) Suppose that a specific value x of the random variable X has been observed. Is it true that the calculation of the LMS
asked on April 14, 2015 
Finance
Crossfade Co. issued 15year bonds two years ago at a coupon rate of 6.9 percent. The bonds make semiannual payments. Required: If these bonds currently sell for 94 percent of par value, what is the YTM?
asked on February 25, 2014 
probability
As in the previous exercise, let È be the bias of a coin, i.e., the probability of Heads at each toss. We assume that È is uniformly distributed on [0,1]. Let K be the number of Heads in 9 independent tosses. We have seen that the LMS estimate of K is
asked on April 14, 2015 
Finance
Karl can afford car payments of $235 a month for 48 months. The bank will lend him money to buy a car at 7.75 percent interest. How much money can he afford to borrow?
asked on February 25, 2014 
statistics
EXERCISE: POSSIBLE VALUES OF THE ESTIMATES Suppose that the random variable È takes values in the interval [0,1]. a) Is it true that the LMS estimator is guaranteed to take values only in the interval [0,1]? b) Is it true that the LLMS estimator is
asked on April 14, 2015 
probability
Consider a Markov chain {X0,X1,…}, specified by the following transition probability graph. P(X2=2∣X0=1)=  unanswered Find the steadystate probabilities ð1, ð2, and ð3 associated with states 1, 2, and 3, respectively. ð1=  unanswered ð2= 
asked on May 16, 2015 
Geometry
Two similar triangles have perimeters of 60 and 36 inches. Find the area of the smaller triangle if the corresponding area of the larger triangle is 100 sq. inches. a. 90 sq. in. b. 48 sq. in. c. 36 sq. in. d. 60 sq. in.
asked on March 1, 2019 
algebra
Rewrite the rational exponent as a radical by extending the properties of integer exponents. 2 to the 3 over 4 power, all over 2 to the 1 over 2 power
asked on May 17, 2017 
science
What properties of carbon explain carbon's ability to form many different macromolecules? What happens to chemical bonds during chemical reactions? Describe the role of energy in chemical reactions what are enzymes, and how are they important to living
asked on September 30, 2009 
Finance
Handy Enterprises has gathered projected cash flows for two projects. Year Project I Project J 0 –$215,000 –$215,000 1 104,000 75,000 2 93,000 86,000 3 79,000 96,000 4 72,000 105,000 Requirement 1: At what interest rate would the company be indifferent
asked on March 19, 2014 
Calc
The length (in centimeters) of a typical Pacific halibut t years old is approximately f(t) = 210(1 − 0.94e^−0.2t). (a) What is the length of a typical 9yearold Pacific halibut? cm (b) How fast is the length of a typical 9yearold Pacific halibut
asked on July 19, 2012 
trigonometry
From a window 20m above the ground, a person could see the top of the house across the street at an angle of elevation of 5 degrees. The angle of depression to the base of the house was 15 degrees. What is the height of the house?
asked on January 25, 2016 
Finance
You want to save $200 a month for the next 24 years and hope to earn an average rate of return of 11 percent. How much more will you have at the end of the 24 years if you invest your money at the beginning of each month rather than the end of each month?
asked on February 25, 2014 
Math
what fraction would you use to find 66 2/3 of 72 mentally
asked on January 29, 2018 
FINANCE
Assume the returns from holding smallcompany stocks are normally distributed. Also assume the average annual return for holding the smallcompany stocks for a period of time was 16.5 percent and the standard deviation of those stocks for the period was
asked on April 2, 2014 
probability
For each one of the following definitions of the state Xk at time k (for k=1,2,…), determine whether the Markov property is satisfied by the sequence X1,X2,…. A fair sixsided die (with sides labelled 1,2,…,6) is rolled repeatedly and independently.
asked on May 16, 2015 
Finance
Handy Enterprises has gathered projected cash flows for two projects. Year Project I Project J 0 –$215,000 –$215,000 1 104,000 75,000 2 93,000 86,000 3 79,000 96,000 4 72,000 105,000 Requirement 1: At what interest rate would the company be indifferent
asked on March 19, 2014 
Geography
The direction from San Antonio, Texas to New Orleans, Louisiana is northeast right?
asked on April 17, 2010 
Accounting
the transaction would decrease one liability account and increase another liability account
asked on July 31, 2009 
probability
Let X and Y be independent random variables, each uniformly distributed on the interval [0,1]. Let Z=max{X,Y}. Find the PDF of Z. Express your answer in terms of z using standard notation . For 0
asked on April 1, 2015 
math
a baseball played 120 games during a season. The ratio of the number of games won to the total number of games played is 2/3. how many games did the team lose during the season? 120/1=2/3 360 divided by 2=180 or 120/x =2/3, 120 divided by 2 = 60
asked on December 11, 2014 
statistics
Let X and Y be independent random variables, each uniformly distributed on the interval [0,1]. Let Z=max{X,Y}. Find the PDF of Z. Express your answer in terms of z using standard notation . For 0
asked on April 1, 2015 
Algebra
I am having a problem with solving a composite function in Algebra 1 How do I solve f(x) = 2x + 1 and g(x) = 4x? Don't I need more info? No, that is all you need. I it unclear what you want to do here. see
asked on July 18, 2007 
Physics
Initially a battery circuit consists of a 25 ohm load connected to a battery with 3 ohms of internal resistance and the circuit draws 1.5A of current. What is the terminal voltage and EMF of the batter? How much (%) power is wasted? Please help, this
asked on April 20, 2016 
College Algebra
What is the amount at the end of 3 years of an investment of Php 1000 given that the annual interest rate is 8 % and is compounded annually?
asked on February 20, 2015 
Math
what is the probability if you had to draw from a bowl twice which had four 1 dollar bills and 1 ten dollar bill.
asked on June 10, 2014 
math
The basketball team won 21 games. Thisbis 25% of the games they played. How many games did the team play?
asked on February 25, 2014 
SOCIAL STUDIES
I AM TRYING TO UNSCRAMBLE THESE LETTERS TO FIND AN ISLAND GROUP? HCRAITELAOG
asked on September 27, 2010 
Physics
How long does it take for a golf ball to fall from rest for a distance of 11.2 m? How far would the ball fall in twice that time?
asked on February 2, 2010 
algebra
hi jiskha. how do you solve x4/x+2 + 2/x2 = 17/x^24? I factored it so it became x4(x+2)(x2)+2(x+2)(x2)=17, but I don't know where to go from there. thanx!!
asked on January 26, 2009 
Physics 1
After each bounce, a ball reaches 1/2 the height of the previous bounce. First to second bounce = 1 second. How long between the second and the third bounce? Thanks
asked on September 23, 2017 
Math
I am a little confused with this: How do I change 8 1/3% into a fraction? Can someone explain or show me so I can understand? Thanks
asked on February 13, 2016 
physics
A lead ball has a volume of 94.3 cm3 at 19.3°C. What is the change in volume when its temperature changes to 34.3°C?
asked on June 20, 2012 
Science
Help with Fungi Kingdom Homework? can someone help me with the following : The phylum that i chose was Zygomycota in the Fungi kingdom. and i need help with these questions 1) pick 2 different species to talk about in detail 2) create a food web for the
asked on June 2, 2011 
social studies
witch religon spred all over the world
asked on January 8, 2009 
Math
Bernie is the oldest of the four Bryant brothers. Bobby is twice as old as Billy, but 2 years younger than Bernie. Bernie is twice as old as Buddy. The youngest Bryant brother is 6 years old. What are the ages of the four Bryant brothers?
asked on April 16, 2008 
Math
Assume that x,y and a are positive numbers. Use the properties of logarithms to write the following expression  log a x^6 y^7 a. 42log a x+y b. 42log a x+7log a y c. 6log a x+42log a y d. 6log a x+7log a y e. 6log a x+6log a y
asked on August 17, 2016 
Math
1. Write an equation that is Parallel to Y=3/4x+4 and that goes through (0,7)
asked on January 19, 2016 
physics
During winter break, the police department in your hometown asks you to consult in the investigation of a traffic accident that occurred in a large parking lot. It seems that a car was backing out of a parking space when a pickup truck plowed straight into
asked on November 26, 2012 
Physics HELP!
A lead ball has a volume of 94.3 cm3 at 19.3°C. What is the change in volume when its temperature changes to 34.3°C? 94.4cm3 was the answer I put and I was wrong. Can someone help?
asked on June 21, 2012 
Math
What is the solution of 6r5=712r?
asked on March 8, 2012 
language arts
why are there so many different types of words Words reflect ideas, or actions. There are a lot of choices for these. And many people see the same thing differently, so use different words to describe it. I'm not sure, but I think you might be asking why
asked on March 22, 2007 
American History
How did the election of 1964 capture the changing views of Americans? Wasn't it that LBJ ran on an antiwar platform, which means that the American people were sick and tired of the war?
asked on July 18, 2017 
American History  Cold War
How does Lillian Hellman's situation represent the fear some Americans felt?
asked on July 11, 2017 
Math
Use the properties of logarithms to find the value the following expression. log3 9^4 the answer options are a. 2 b. 4 c. 6 d. 8 e. 10 I got 4?
asked on August 17, 2016 
Math
X= 8 Y= 2x12 Find the coordinates
asked on December 18, 2015 
Perry
The sum of two numbers is 15 the sum of the squares of the same two numbers is 172 fined the difference between the two numbers
asked on November 4, 2015 
College Algebra
Let f(x) = (2/4^x + 2) for real numbers x. Evaluate f(1/2001) + f(2/2001) + ... + f(2000/2001).
asked on January 23, 2015 
Physics
A lead ball has a volume of 94.3 cm3 at 19.3°C. What is the change in volume when its temperature changes to 34.3°C? 94.4cm3 was the answer I put and I was wrong. Can someone help?
asked on June 22, 2012 
7th grade
Erm how does this site wrk?
asked on October 29, 2010 
Math
Explain how you could show five less than a number using an expression?
asked on October 27, 2009 
social studies
i dun get this. ulysses s grant lost his popularity with voters as a result of a. desire for reconciliation between north and south b.lack of work to the reconstruction c.presidency scandals d. dissatisfaction with the republican party.
asked on November 18, 2008 
social studies
Who was the Senate leader of Reconstruction?
asked on November 18, 2008 
social health
what is social health and i need to know right now.
asked on January 23, 2008

@ nathan
give me answers
posted on November 5, 2018 
math
256
posted on April 17, 2018 
Math Q.2
i dont know
posted on January 29, 2018 
American History  Cold War
The House Committee on UnAmerican Activities (HUAC) hearings on Communist activity
posted on July 11, 2017 
curriculum development
The answer is "C" Small and Sheltered. I promise
posted on June 16, 2016 
Physics
Am I supposed to take the x and y component for each, then add them together to determine the overall force on q1? that would suggest I need to determine all the angles as well?
posted on April 18, 2016 
math
Minding Their Manors
posted on September 28, 2015 
Probability
any ideas for c?
posted on May 26, 2015 
Maths Probability
any ideas for c?
posted on May 26, 2015 
probability
part 3: LMS estimate of T2 = 0.48 part 1: alpha = ?
posted on April 15, 2015 
english
# 2 is a
posted on August 28, 2013 
physics
They want you to decide whether or not the truck driver was actually going 1o mph or not. What I have so far is v2=(m1v1)/m2 or v2=(1500kg x 16.093 km/hr)/2500 kg which gives 9.6558 However, that seems to simplistic so it's probably super wrong.
posted on November 26, 2012 
Calc
b) Take derivative and plug in 9?
posted on July 19, 2012 
5th grade algebra
5x2y3x=3X+7
posted on May 29, 2012 
The Crucible Crossword Puzzle question
Bitter
posted on December 13, 2011 
Literary Analysis and Composition
Allie did you submit these answeres whad you get?
posted on December 12, 2011 
Science
Thankss but i can't seem to find what kind of species that are in it
posted on June 2, 2011 
Physics
The answer is D. Fg=Fcos(theta)
posted on April 26, 2011 
Poetry Part II
In fact GuruBlue's interpretation is probably two inches worse.
posted on November 22, 2010 
Math
Hi, 1) The area is part of C and not part of B hence the statement some C is not B is valid Let r be "The object belongs to set C" (p=>~q)Λ(pΛr) => (rΛ~q) The statement is valid because in all cases the statment is true (note that all Ts in the final
posted on May 24, 2010 
Geography
But isn't going to New Orleans from San Antonio northeast?
posted on April 17, 2010 
Grade 6 math
yes
posted on March 2, 2009 
social studies
i couldn't find the answer to this anywhere, i check the booked and the net, maybe i need to rephrase it somehow...
posted on November 18, 2008 
social studies
i dun get this. ulysses s grant lost his popularity with voters as a result of a. desire for reconciliation between north and south b.lack of work to the reconstruction c.presidency scandals d. dissatisfaction with the republican party.
posted on November 18, 2008 
Math
how do i divid fractions?
posted on April 8, 2008