# Manny

Popular questions and responses by Manny-
## physics

a dog runs back and forth between its two owners, who are walking toward one another. the dog starts running when the owners are 10 m apart. if the dog runs with a speed of 3 m/s and the owners each walk with a speed of 1.3 m/s how far has the dog traveled

*asked on August 26, 2007* -
## math

The probability that a person has immunity to a particular disease is 0.3. Find the mean and standard deviation for the random variable x, the number of people who have immunity in samples of size 28. This is a binomial distribution. mean= 28*.3 standard

*asked on August 18, 2007* -
## chem

Are these correct? Rank the following species in order of increasing acidity. Explain your reasons of ordering them as you do. NH3 ,H2SO4, CH3OH, CH3COOH CH3COOH > H2SO4> CH3OH >NH3 Rank the following species in order of increasing basicity. Explain your

*asked on August 20, 2007* -
## Please help me with this question.!!!!!!

Ms. Alison drew a box-and-whisker plot to represent her students’ scores on a mid-term test. box-and-whisker plot Josh received 72 on the test. Describe how his score compared to those of his classmates. (1 point) About 25% scored higher; about 75%

*asked on June 10, 2014* -
## finance management

Explain how efficient inventory management affects the liquidity and profitability of the firm.

*asked on September 13, 2007* -
## math

Suppose a code consist of two letters followed by a digit. Find the number of (a) Codes (b) Codes with distinct letters (c) Codes with the same letters

*asked on September 4, 2007* -
## math

A student says that the solution of 375 = x – 28 is 347. Explain the student’s error and find the correct answer

*asked on April 12, 2013* -
## Civics

1. What is the difference between a party’s platform and a plank? Select all that apply. (2 points) A.A plank is more general than the platform. B.A plank is more specific than the platform. C.A plank is a statement of a single position. D.A plank is a

*asked on May 17, 2020* -
## Calc 2

Compute the total area of the (infinitely many) triangles in the Figure In the image, the height of all the triangles is 6/7. The x-values for the bases of the triangles from left to right are as follows: 27/64 , 9/16 , 3/4 , 1 Using the formula for the

*asked on March 30, 2018* -
## english

“There is little reason to fear that women will acquire too much courage or fortitude, for their apparent inferiority…” What choice most closely defines the underlined word?

*asked on April 27, 2016* -
## math

Barry's Blueberry Patch Come and pick your own blueberries for $3.00/lb Purchase prepackaged blueberries for $3.50/lb A family picks 1.7 lb of blueberries and purchases an additional 0.5 lb of prepackaged blueberries. Using the pricing displayed above,

*asked on October 25, 2015* -
## Economics

Ben deposits $5000 now into an account that earns 7.5 percent interest compounded annually. He then deposits $1000 per year at the end of the first and second years. How much will the account contain 10 years after the initial deposit?

*asked on February 21, 2013* -
## Biochem

You wish to measure the ∆G°' for the hydrolysis of ATP: ATP --->ADP + Pi But the equilibrium for the hydrolysis lies so far toward products that analysis of the ATP concentration at equilibrium is neither practical or accurate. However, you have the

*asked on September 14, 2009* -
## chemistry

Given one of the starting materials and end product for each of the following reactions, show all reactants, reaction conditions in brackets (where known) and products. fluoroethane from ethanol

*asked on April 26, 2008* -
## physics

1:Negative clipping of an output signal occurs when the A. output impedance is too high. B. input impedance is too high. C. input amplitude is too high. D. power supply voltage is too high. 2: Which of the following is essential for the operation of an

*asked on August 31, 2007* -
## physics

How do i go about this question? Suppose a car is traveling at 20.0m/s, and the driver sees a traffic light turn red, After 0.530s has elapsed (the reaction time), the driver applies the brakes, and the car accelerates at 7.00m/s2. What is the stopping

*asked on August 16, 2007* -
## Astronomy

Calculate the ratio of the escape velocities from the moon and Earth. Calculate the ratio of the escape velocities from the moon and Earth In order to escape the gravitaional pull exerted by a central body on an orbiting object, it must must achieve a

*asked on April 10, 2007* -
## Statistics

Jane Blaylock joined the Ladies Professional Golf Association (LPGA) in 1969 and by 1972 had become the leading money winner on the tour. During the Bluegrass Invitational Tournament, she was disqualified for an alleged rules infraction. The LPGA appointed

*asked on November 21, 2018* -
## science

Plant~Deer~Tiger The first step in the energy chain that created the bonds of proteins in the tiger's muscle cells in the food chain shown above is the A. deer the tiger ate. B. plant the deer ate. C. photons the sun made. D. carbohydrates the plant made.

*asked on October 25, 2015* -
## math

Barry's Blueberry Patch Come and pick your own blueberries for $3.00/lb Purchase prepackaged blueberries for $3.50/lb A family picks 1.7 lb of blueberries and purchases an additional 0.5 lb of prepackaged blueberries. Using the pricing displayed above,

*asked on October 25, 2015* -
## PHYSICS NEED HELP

A bicyclist can coast down a 5° hill at a constant 6.0 km/h. Assume the force of friction (air resistance) is proportional to the speed v so that Ffr = cv. (a) Calculate the value of the constant c. (b) What is the average force that must be applied in

*asked on October 22, 2015* -
## Physics-HELP

An airplane is traveling 775 km/h in a direction 42.5° west of north (Figure 3-31). (a) Find the components of the velocity vector in the northerly and westerly directions. northerly km/h westerly km/h (b) How far north and how far west has the plane

*asked on September 20, 2015* -
## Please help me with this question.!!!!!!

A recording artist released a compilation of songs on the Internet. The scatter plot below shows the number of downloads for her album, in the thousands, over the course of nine days. scatter plot If this trend continues, approximately how many thousands

*asked on June 11, 2014* -
## paramount

Can you help me with a short interpretation for this poem? "A Voice" by Pat Mora.

*asked on March 12, 2013* -
## Math

The area of a certain rectangle is 288 yd2 the perimeter is 68 yd. if you double the length and the width what will be the area and perimeter of a new rectangle?

*asked on March 7, 2013* -
## algebra

Daniel can plant an acre of corn in 6 hours. Working with Amanda, they can plant an acre of corn in 2 hours. How long would it take in hours for Amanda to plant an acre of corn by herself?

*asked on June 22, 2012* -
## pre calc

The length of a rectangle is three times its width. If the area of the rectangle is 45 ayrds squared , find its perimeter.

*asked on August 4, 2011* -
## physics

SOMEBODY ANSWER THIS PLEASE, Two people pull as hard as they can on ropes attached to a 170 kg boat. If they pull in the same direction, the boat has an acceleration of 1.59 m/s2 to the right. If they pull in opposite directions, the boat has an

*asked on September 19, 2010* -
## physics

An inquisitive physics student, wishing to combine pleasure with scientific inquiry, rides on a rollercoaster sitting on a bathroom scale. (Do not try this yourself on a rollercoaster that forbids loose heavy packages.) The bottom of the seat in the

*asked on September 19, 2010* -
## Calculus

Find the point on the line 6x + y = 9 that is closest to the point (-3,1). Solution: We need to minimize the function d = sqrt((x − (−3))^2 + (y − 1)^2) = sqrt((x + 3)^2 + (y − 1) ^2 ) and, since the point (x, y) lies on the line 6x + y = 9, we can

*asked on December 9, 2009* -
## chemistry

Given one of the starting materials and end product for each of the following reactions, show all reactants, reaction conditions in brackets (where known) and products. fluoroethane from ethanol

*asked on April 29, 2008* -
## organic chemistry

Hi, I was wondering if somebody could help me out with this problem which says: "Why does changing the base have no effect on the rate of an E1 reaction while it does affect the rate of an E2 reaction?" I would appreciate any help I can get on this

*asked on November 10, 2007* -
## physics- sound waves

An explosion occurs that releases 2500J of energy in 110ms, 1.5% of which goes into a spherical sound wave traveling out equally in all directions from the explosion. A sound level meter records the average value of the acoustic wave as it passes the meter

*asked on October 10, 2007* -
## chemistry

Can somebody point out the step i have to take to solve this problem. It would be much appreciated. Thanks a lot!!!! _____________________________________________________________________________________________________________________ Asprin, C9H8O4, is

*asked on September 16, 2007* -
## chem

---------- A compound has the formula Mg3X2. If 1.87 g of X combines with 4.86 g of magnesium, what is the atomic weight of X? A) 7.0 B) 14.0 C) 21.0 D) 28.0 E) 32.0 ---------- I'm having a really rough time with this one. It seems the total weight is 6.73

*asked on September 13, 2007* -
## math

whats the pattern in these numbers? 8 5 4 9 1 7 6 3 2 0

*asked on September 7, 2007* -
## chem

Hi, I need help with this problem--- I have no idea how to go about it _______________________________________________________________ An average adult breathes about 8.5 x 10^3 L of air per day. The concentration of lead in higly polluted urban air is 7.0

*asked on September 4, 2007* -
## math

I know It's probably an easy question but I don't know remember how to do it. Show the work to determine if the relation is even, odd, or neither. a ) f(x) = 2x^2 - 7 b) f(x) = -4x^3 - 2x c) f(x) = 4x^2 - 4x + 4 If f(-x) = f(x), for any x, the function is

*asked on August 20, 2007* -
## A fun one-math

i am a four -digit number with no two digits the same. my ones digit is twice my thousands digit and one less than my tens digit. my hundreds digit is the difference between my tens digit and my thousands digit. my thousands digit is an odd number less

*asked on August 20, 2007* -
## science

I have no idea on this one A man put a goldfish into recently boiled water that had been cooled quickly, and it died. Explain what happened to the goldfish. Thanks! The dissolved oxygen in the water was driven out when the water was boiled. The fish died

*asked on August 16, 2007* -
## Civics

Which of the following is judicial interpretation? A.determining what the law means in a specific case B.following the law, regardless of one’s personal views C.imposing one’s own personal views on what the law should be D.using the principles of due

*asked on April 14, 2020* -
## history

2. Which of the following contributed the most to the completion of the overland Silk Routes? a - The growth of powerful empires in Europe and Asia b - Trade between small, neighboring tribes c - China's hinger for foreign goods d - Competition from

*asked on March 31, 2020* -
## Physics

I've managed to figure out question B but cannot figure out A, any help appreciated Two particles, with identical positive charges and separation of 3.04 × 10-2 m, are released from rest. Immediately after the release, particle 1 has an acceleration a1

*asked on September 26, 2019* -
## Math

The random variable X has the following density function: f(x) = { x^2 if 0 < x < 3 { 0 otherwise a) Find the distribution function F(x) of X b) Draw the distribution function c) Calculate the following probabilities: P(X > 1.5) = P(1/2 ≤ X < 3/2) = P(-2

*asked on March 31, 2019* -
## Calculus 2

Convert r = 1 / (6cos(θ)+8sin(θ)) to an equation in rectangular coordinates (i.e., in terms of x and y). A similar example I found, where r = 1 / (cos (θ) − sin (θ)), found the rectangular equation to be y = x - 1. How would this answer change for my

*asked on May 10, 2018* -
## physics

if an object is pushed along a rough horizontal surface and moves at a constant velocity, then...

*asked on December 30, 2017* -
## Math

Yolanda buys two types of flowering plants. She buys 36 geraniums and 63 marigolds she wants to plant an eeach row will contain only one type of flowering each row will contain only one type of flowering plant Yolanda uses all the plants she bought in her

*asked on February 15, 2017* -
## Math

In the last basketball game, Kevin scored 2 less than a third of his team's points. Part A: Let n represent the number of points Kevin's team scored. Write an expression for the number of points Kevin scored. Part B: Kevin scored 14 points. How many points

*asked on February 10, 2017* -
## Math

A 5-pound bag of potatoes costs$3.40 what is the cost per pound

*asked on December 30, 2016* -
## help with math

Which would represent proof of the Pythagorean Theorem? A. Right triangle with legs of 36 and 9, as well as the hypotenuse as 64. B. Right triangle with legs of 144 and 25, as well as the hypotenuse as 169. Is it B? I don't know...

*asked on December 1, 2016* -
## math

what is the expression for 8 less than the product of 5 and -4

*asked on November 8, 2016* -
## Social studies

Nation states arguing over immigration polices?

*asked on August 22, 2016* -
## Maths

I just need a base to start to help teach my child: Find the fraction: If 1 is added to it's numerator, then it is equivalent to 1/3. And if 1 is added to it's denominator, then it is equivalent to 1/4

*asked on June 20, 2016* -
## Math/Precal

how do i solve so left hand side equals right hand side? cos2x=(1-tan^2x)/(1+tan^2x)

*asked on March 16, 2016* -
## accounting

pido corporation'd general ledger include

*asked on March 3, 2016* -
## Math

how do i solve for b, when: (2pi/b)=8pi

*asked on March 2, 2016* -
## Chemistry

how do i figure out "What is the energy of 1 mole of these photons" energy= 2.93x10^-19 wave length = 670.8 nm

*asked on February 18, 2016* -
## Delete Question posted

Please delete question Posted by Donald on Sunday, January 24, 2016 at 10:00pm.

*asked on February 16, 2016* -
## Precal

Find all values of theta in radians over radians over the set of all real nunbers given the equation: 2sinthetacostheta=sintheta

*asked on February 16, 2016* -
## Precal

A wheel rolls 140cm while rotating 210 degrees. What is the circumference of the wheel??

*asked on February 16, 2016* -
## Spanish help

What is wrong with my sentences in Spanish? Vamos a el cine el lunes. Yo compro videojuegos el lunes. El jueves yo voy a el gimnasio. El Domingo yo boy a la playa con mis amigos y comer a un restaruante delicioso. My teacher put circles and letters over

*asked on February 8, 2016* -
## Help Math

Duncan wants to make an aquarium. The aquariums are available in two shapes, spherical (S) or cubical ©. He can choose either goldfish (G) or fantails (F) to keep in his aquarium. Which list shows the different combinations of aquariums and fish from

*asked on January 28, 2016* -
## math

During a sale, a store offered a 40% discount on a particular camera that was originally priced at $450. After the sale, the discounted price of the camera was increased by 40%. What was the price of the camera after this increase?

*asked on November 29, 2015* -
## science

In pea plants, the allele for tall (T) is dominant to the allele for short (t). Which of the following is the percent of offspring that will be tall if a heterozygous plant (Tt) is crossed with a homozygous tall plant? A. 100% B. 75% C. 50% D. 25% i think

*asked on October 25, 2015* -
## SCIENCE

Which of the following tissues would send a message to the brain indicating that someone has touched something hot? A. Epithelial tissue B. Nervous tissue C. Muscle tissue D. Connective tissue i think its B Which of the following describes the

*asked on October 25, 2015* -
## science

When salt (NaCI) is added to water, it disassociates into Na and Cl-ions. Which of the following types of chemical bond is present in a salt molecule? A. Covalent bond B. Ionic bond C. Hydrogen bond D. Disulfide bond i think its B An example of active

*asked on October 25, 2015* -
## math

Which of the following is the number of milliliters in 2 gallons? (Note: 1 gallon = 4.4 liters; 1 liter= 1,000 milliliters) A. 440 B. 880 C. 4,400 D. 8,800 i think its D The hypotenuse (side C) of a triangle is 13 inches long. Which of the following pairs

*asked on October 25, 2015* -
## math

17. Which of the following is the correct simplified fractional representation of 0.03030? A. 303/1,000 B. 303/10,000 C. 3,030/1,000 D. 3,030/10,000 i think its B

*asked on October 25, 2015* -
## Physics-HELP

An Olympic long jumper is capable of jumping 7.5 m. Assume that his horizontal speed is 8.8 m/s as he leaves the ground. How long is he in the air? How high does he go? Assume that he lands standing upright, that is, the same way he left the ground.

*asked on September 20, 2015* -
## physics

A child on a sled (total mass 41 kg) slides down a hill inclined at an angle θ = 22° at a constant speed 3.5 m/s. (a) How long does it take the child to travel 40 meters down the slope? (b) What is the frictional force on the sled? (c) What is the

*asked on September 18, 2015* -
## Math

Complete number line from 0 to 3 in thirds. In fractions.

*asked on November 16, 2014* -
## math

fly happy airlines lets each passenger bring 2 suitcases. their cargo area can hold 30 suitcases. How many passengers can fly on Fly Happy's plane?

*asked on November 2, 2014* -
## math

there are 4 quarters in a dollar. Steven earned 3 dollars last month. How many quarters did he earn?

*asked on November 2, 2014* -
## Language arts help ms sue.

1. Based on reading only the title and headings, what would you think the article was about? (1 point) a renewed interest in hunting and fishing an animal population with an uncertain future the threat logging poses to forest animals a group of dinosaurs

*asked on April 9, 2014* -
## ovarian and uterine cycles

There are two I could not find. Are those that I have so far correct? 1. Name the hormone that triggers development of a primary follicle. I had no idea. . . 2. The corpus luteum releases progesterone in the luteal phase. 3. Oestrogen and progesterone are

*asked on April 8, 2014* -
## Math

square root of (1-cosx/1+cosx) = cscx - cotx prove the identity

*asked on February 11, 2014* -
## Math

Convert 2x-y>2 to slope intercept form.

*asked on March 27, 2013* -
## paramount

Can you help me with a short interpretation for this poem? "A Voice" by Pat Mora.

*asked on March 12, 2013* -
## Engineering Econonmy

You decide to open an IRS-approved retirement account at your local brokerage firm. Your best estimate is that it will earn 9 percent. At the end of each year for the next 25 years, you will deposit $4000 per year into the account (25 total deposits). 3

*asked on February 23, 2013* -
## English Grammar

Is this correct grammar? If you have accomplished what you aimed to do, are you not as equally successful, as the next person?

*asked on December 18, 2012* -
## Physics (easy level)

What would a Potential energy to velocity^2 graph be?

*asked on December 17, 2012* -
## Economics

Assuming a constant marginal cost, a lower price elasticity of demand would call for a relatively lower mark-up ration.

*asked on December 9, 2012* -
## Economics

n auto-service establishment has estimated its monthly cost function as follows: TC = 6000 + 10 Q where Q is the number of cars it services each months and TC represents its total cost. The firm is targeting 35,000 net monthly profit servicing 2000 cars.

*asked on December 9, 2012* -
## math

One number is four times another. the greater number is x. write an ecpression for the lesser number.

*asked on September 25, 2012* -
## physics

A swimmer, capable of swimming at a speed of 1.3 m/s in still water (i.e., the swimmer can swim with a speed of 1.3 m/s relative to the water), starts to swim directly across a 2.2-km-wide river. However, the current is 0.91 m/s, and it carries the swimmer

*asked on September 18, 2012* -
## algebra

Find the number of ways the top four can finish in a race of nine people.

*asked on June 22, 2012* -
## business

1. The employees of Abs “R” Us, which includes 12 fitness parlors in and around the metro area, feel they can improve the performance of the company. They decide to pool their resources to purchase the company. This would be called a _______ buyout. A.

*asked on March 7, 2012* -
## 8th grade math

The sum of three numbers is 81 and their ratio is 3:7:17. What is the value of the smallest number?

*asked on November 28, 2011* -
## PreCalculus

I'm trying to find the x-intercepts of a polynomial function = 4x^4-3x^3-6x^2+2x+6. I don't want anyone to solve it, could someone please just tell me how to start factoring this so I can find the x-intercepts, I'm lost.

*asked on November 15, 2011* -
## slope math

Write the equation of a line with the given slope and y-intercept. 1.m=0 b=-3 2.m=-7 b=1/2

*asked on October 25, 2011* -
## math

find 3/5 of 30

*asked on July 22, 2011* -
## physics

a snowboarder moves down a slope for which theta= 22 degrees. the coefficient of kinetic friction between the board and the snow is 0.21 and her velocity is a constant 8.3 m/s. what will her speed 100 meters past the end of the slope? how far will she

*asked on November 24, 2010* -
## Physics

A child goes down a playground slide that is inclined at an angle of 24.5° below the horizontal. Find the acceleration of the child given that the coefficient of kinetic friction between the child and the slide is 0.305.

*asked on October 5, 2010* -
## Psychology

When you use procedures like placebos and double-blind conditions, you are attempting to set up ____ for factors that would make your experimental findings questionable. A. controls B. treatments C. selections D. cases

*asked on September 1, 2010* -
## physics II

sUPPOSE YOU HAVE A square coil and a triangular coil each have sides of length L. The triangular coil has twice as many turns as the square coil. If a the same current is sent through each coil, when the coils are placed in the same uniform magnetic field

*asked on August 1, 2010* -
## physics II

There is a pulse returns 3.0x10^-4 seconds after it is sent out, having been reflected by an object. What is needed is the distance between the radar antenna and the object? (c = 3x10^8 m/s)

*asked on August 1, 2010* -
## Math

Find the point on the line 6x + y = 9 that is closest to the point (-3,1). Solution: We need to minimize the function d =

*asked on December 9, 2009* -
## Calculus

Find the point on the line 6x + y = 9 that is closest to the point (-3,1). Solution: We need to minimize the function d =

*asked on December 9, 2009* -
## physics

For some reason i cant get this question. If someone can help that would be great. Thanks. In a pickup game of dorm shuffleboard, students crazed by final exams use a broom to propel a calculus book along the dorm hallway. If the 3.5 kg book is pushed from

*asked on September 27, 2009* -
## math./algebra

Simplify. 3 square root2(5square root 2 - 6 square root 12)

*asked on April 29, 2009*

## Pages

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