# Marc

Popular questions and responses by Marc-
## Ap physics

Determine the mass of the earth from the known period and the distance of the moon

*asked on October 25, 2016* -
## into to algebra

You need a 45% alcohol solution. On hand, you have a 150 mL of a 15% alcohol mixture. You also have 70% alcohol mixture. How much of the 70% mixture will you need to add to obtain the desired solution?

*asked on February 13, 2017* -
## macroeconomics

22. The following table shows the price of a specific stereo receiver for a five-year period. Using year 3 as the base year, calculate the price index for each year. Year Price Price index 1 $ 88 ___ 2 $100 ___ 3 $120 ___ 4 $132 ___ 5 $140 ___

*asked on October 11, 2011* -
## computer programming

Design the pseudocode for a program that allows a user to enter 10 numbers, then displays them in the reverse order of their entry

*asked on February 22, 2017* -
## Calculus

a college is planning to construct a new parking lot. the parking lot must be rectangular and enclose 6000 square meters of land. A fence will surround the parking lot, and another fence parallel to one of the sides will divide the parking lot into two

*asked on November 26, 2010* -
## algebra

The vendor of a coffee cart mixes coffee beans that cost $8 per pound with coffee beans that cost $4 per pound. How many pounds of each sould be used to make a 60-pound blend that sells for $5.25 per pound? $8 coffee __________ $4 coffee __________

*asked on September 27, 2014* -
## algebra

A man flies a small airplane from Fargo to Bismarck, North Dakota --- a distance of 180 miles. Because he is flying into a head wind, the trip takes him 2 hours. On the way back, the wind is still blowing at the same speed, so the return trip takes only 1

*asked on February 13, 2017* -
## Physics

A 4.70 kg chunk of ice is sliding at 15.0 m/s on the floor of an ice-covered valley when it collides with and sticks to another 4.70 kg chunk of ice that is initially at rest. Since the valley is icy, there is no friction. After the collision, the blocks

*asked on November 24, 2017* -
## math

Suppose you win $3 if you roll a sum of 2,3,4, or 5, you lose $15 if you roll a sum of 6,7, or 8, and you win $5 if you roll a sum of 9,10,11, or 12. Find the expected value (mean of the probability distribution) of how much you win or lose for the game.

*asked on October 8, 2019* -
## math

if a pie is cut into sixths how many pieces would there be ?

*asked on September 2, 2014* -
## macroeconomics

27. The following data show nominal GDP and the appropriate price index for several years. Compute real GDP for each year and indicate whether you have “inflated” or “deflated” nominal GDP in finding real GDP. All GDP are in billions. Nominal Price

*asked on October 11, 2011* -
## math

what is 226.08 rounded to the nearest tenth? I'm stuck I believe it would be 226.9

*asked on February 3, 2016* -
## macroeconomics

25. The following table shows the price of a specific stereo receiver for a five-year period. Using Year 1 as the base year, calculate the price index for each year. Year Price Price index (answers using Year 1 = 100) 1 $112 ___ 2 144 ___ 3 160 ___ 4 176

*asked on October 11, 2011* -
## calculus

which of the following is an equation of the line tangent to the graph of y = (x^3)-x at the point where x =2: a) y - 6 = 4(x-2) b) y - 6 = 5(x-2) c) y - 6 = 6(x-2) d) y - 6 = 11(x-2) e) y - 6 = 12(x-2) thanks!

*asked on December 14, 2010* -
## English

While Sara was traveling in England; she met an interesting old man. . Choose the answer that is the most effective substitute for the underlined part of the sentence. If no substitute is necessary, choose ‘Leave as is.’ A) in England. She met B) in

*asked on March 11, 2016* -
## Language Arts

Excerpt from: Norse Mythology Part D Kate McConnaughey Then Loki, the spirit of evil, will break loose from the fetters with which the gods have bound him. (31) The frost giants join him. They will try to make a secret attack on the gods. But Heimdall, the

*asked on January 27, 2016* -
## Mechanics:Statics

A man weighs 900N on the surface of the earth. Compare his weight in an airplane flying at an elevation of 9000m. Note that the radius of Earth is 6378km.

*asked on April 19, 2013* -
## Math

If Micheal Jordan when standing with his arms straight up in the air, is 7 feet 8 inches tall ; how many inches would he have to jump to touch the basketball rim that is 10 feet high above the floor?

*asked on April 5, 2020* -
## Program Design and Development

Design a Visual Logic flowchart for a program that prompts the user to enter ten numbers one at a time. After the user has entered all ten number the program will then print out the total of those ten number and quit? In Visual Logic use console I/O?

*asked on February 12, 2017* -
## physics

Please decide which of the following statements for car collisions are true or false. 1)Crumple zones on cars are parts of the front of the car that are designed to receive maximum deformation during a head-on collision. The essential safety benefit of

*asked on April 11, 2012* -
## Physics

Wheel A of radius ra = 13.9 cm is coupled by belt B to wheel C of radius rc = 34.3 cm. Wheel A increases its angular speed from rest at time t = 0 s at a uniform rate of 5.7 rad/s2. At what time will wheel C reach a rotational speed of 168.2 rev/min,

*asked on February 10, 2012* -
## calculus

At noon, ship A starts sailing due east at the rate of 20km/hr. Ath the time, ship B, which is located 100km east of ship A initially, starts sailing on a course 60 degrees north of west at the rate of 10km/hr. How fast is the distance between the two

*asked on March 24, 2011* -
## Calculus

a spherical ballon is being inflated at a constant rate of 25 cm^3/sec. At what rate in cm/sec is the radius of the ballon changing when the radius of the ballon is 2 cm? (VOLUME SPHERE FORMULA 4/3 pi r^3)

*asked on November 26, 2010* -
## calculus

a rectangle with one side on the x axis and one side on the line x=2 has it upper left vertex on the graph of y=x^2, for what values of x does the area of the rectangle attain its maximum value?

*asked on November 26, 2010* -
## chem

A metal oxide reacts with water to produce a metal hydroxide. What additional information would you need to determine the percent yield of metal hydroxide from this reaction?

*asked on April 8, 2010* -
## calculus

Find the area bounded by y - axis and x = 4 - y^(2/3)?

*asked on September 20, 2018* -
## Physics

A 200 g object on a frictionless, horizontal lab table is pushed against a spring of force constant 35.0 N/cm and then released. Just before the object is released, the spring is compressed 11.0 cm. How fast is the object moving when it has gained half of

*asked on November 24, 2017* -
## computer programming

Design the logic for a program that allows a user to enter 10 numbers, then displays each and its difference from the numeric average of the numbers

*asked on February 22, 2017* -
## Calculus

From first principles (ie using the tangent slope method), find the slope of the following curves at the given value of x. f(x)=2x^2− 6x at x = 3

*asked on April 14, 2016* -
## Calculus

Determine the following limits if it exists. a. lim x-->5 (4x/x-5)

*asked on April 10, 2016* -
## Math

Arrange these numbers from least to greatest: 2 over 5 comma text end text − 3 over 7 comma text end text 2 over 3. A. 2 over 5 comma text end text − 3 over 7 comma text end text 2 over 3 B. − 3 over 7 comma text end text 2 over 5 comma text end text

*asked on March 14, 2016* -
## English

How does the author arrange this passage? A) He uses dialogue in the first half to express the confusion over the phrase "Don't give up the ship." He uses a rhyming poem in the second half to explain the phrase's source. B) He uses dialogue in the first

*asked on March 11, 2016* -
## math

Two functions, A and B, are described as follows: Function A y = 9x + 4 Function B The rate of change is 3 and the y-intercept is 4. How much more is the rate of change of function A than the rate of change of function B? 2 3 6 9 I believe the answer is

*asked on February 1, 2016* -
## Language Arts

When He-Ping says that he wouldn't miss it for the world, he means that A) he is not sure. Eliminate B) he really wants to go. C) he thinks his mom should know. D) he does not know if he is allowed. I believe it is B.

*asked on January 27, 2016* -
## Language Arts

Which words should be deleted to remove redundancy? At first, my initial reaction was to cancel my subscription to the monthly magazine because the customer service representative was so rude to me. A) At first, B) monthly magazine C) my initial reaction

*asked on January 27, 2016* -
## Math

Please help me and show an understanding please, so I see how to figure them out. Lee deposited $28,000 in an interest-bearing checking account that earns 3.5% interest compounded daily. Find the amount after 68 days. a.$183.16 b.$28,180.46 c.$28,183.16

*asked on February 20, 2015* -
## Physics

Wheel A of radius ra = 13.9 cm is coupled by belt B to wheel C of radius rc = 34.3 cm. Wheel A increases its angular speed from rest at time t = 0 s at a uniform rate of 5.7 rad/s2. At what time will wheel C reach a rotational speed of 168.2 rev/min,

*asked on February 10, 2012* -
## statistics

Among the four northwestern states, Washington has 51% of the total population, Oregon has 30%, Idaho has 11%, and Montana has 8%. A market researcher selects a sample of 1000 subjects, with 450 in Washington, 340 in Oregon, 150 in Idaho, and 60 in

*asked on December 2, 2011* -
## Math

Samantha saved $13 by buying a used DVD. She paid $5 less than half the original price of a new one. How much did Samantha pay for a used DVD?

*asked on November 15, 2011* -
## macroeconomics

23. The next four questions refer to the following price and output data over a five-year period for an economy that produces only one good. Assume that year 2 is the base year. Units of Price Year output per unit 1 16 $2 2 20 3 3 30 4 4 36 5 5 40 6 (a) If

*asked on October 11, 2011* -
## macroeconomics

18. The following is a list of figures for a given year in billions of dollars. Using this data, compute: (a) GDP; (b) NDP; (c) NI; (d) PI; (e) DI; (f) Net exports. Transfer payments $ 16 Government purchases 80 Personal taxes 38 Corporate income taxes 28

*asked on October 11, 2011* -
## Calculus

which of the following is an equation of the line tangent to the graph of y = (x^3)-x at the point where x =2: a) y - 6 = 4(x-2) b) y - 6 = 5(x-2) c) y - 6 = 6(x-2) d) y - 6 = 11(x-2) e) y - 6 = 12(x-2) thanks!

*asked on December 14, 2010* -
## science

A tick that feeds on the blood of animals is a - a. parasite b. host c. predator d. competitor ???help please?

*asked on May 14, 2008* -
## lattice math

Why should we estimate before solving a problem? We should estimate before solving a problem to make sure our answer is close to the real answer. Here's a simple problem. Suppose we want to find wnat a 6% tax on a $10 purchase would be. When you do the

*asked on October 3, 2006* -
## math

-5,2 translated 8 units to the right and 3 units up

*asked on May 4, 2020* -
## Program Design and Development

Design the pseudocode for a program that outputs numbers in reverse order from 10 down to 1 using a loop?

*asked on February 12, 2017* -
## Calculus

Knowing that Pi/2 < x < Pi and that 0

*asked on January 25, 2017* -
## Calculus

Find two non-intersecting intervals where f(x) +12x^4 + 50x^3 + 80x^2-100 has at least one root. Justify your answer.

*asked on January 24, 2017* -
## Math

Mrs. Beck paid a total of $34 for 4 identical bowls and 2 identical plates. A bowl cost $4 more than a plate. How much did she pay for each bowl?

*asked on January 7, 2017* -
## Math

Suppose you have a coin that lands on Heads with probability 0.6 There are three coin flips defined as X. Heads count 1 and tails count 0 – e.g., if three heads then X= 3; if a head and two tails then X = 1; if three tails the X = 0. What is the expected

*asked on September 11, 2016* -
## pre-calculus

A plane flies at a speed of 150mph at an angle of 10 degrees, after 6 seconds, the plane keeps the same speed but changes to an angle 18 degrees. How long in minutes would it take the plane to travel to a cruising altitude of 30,000 feet?

*asked on June 7, 2016* -
## Scienc

The dissolution of ammonium nitrate in water changes the temperature of water from 21C to - 1C(ice). If the molar enthalpy of ammonium nitrate is 25.7kj/mol. Determine the mass of ammonium nitrate that was dissolved

*asked on May 23, 2016* -
## math

what is the circumference of a circle with a diameter of 50 mm

*asked on May 21, 2016* -
## Calculus (Im I Doing This Right???? Im Unsure)

From first principles (ie using the tangent slope method), find the slope of the following curves at the given value of x. f(x)=2x^2−6x at x = 3 f(x)=2x^2-6x f(x+h)= 2(x+h)^2-6(x+h) =2x^2+4xh+2h^2-6x-6h lim h-->0 f(x+h)-f(x)/h =2x^2+4xh+2h^2-6x-6h -

*asked on April 16, 2016* -
## Calculus (Im I Doing This Right???? Im Unsure)

From first principles (ie using the tangent slope method), find the slope of the following curves at the given value of x. f(x)=2x^2−6x at x = 3 f(x)=2x^2-6x f(x+h)= 2(x+h)^2-6(x+h) =2x^2+4xh+2h^2-6x-6h lim h-->0 f(x+h)-f(x)/h =2x^2+4xh+2h^2-6x-6h -

*asked on April 15, 2016* -
## Calculus Answer Confirming Not Sure Im Right Help?

Evaluate the lim a. lim x--> 64 (cube root x-4/x-64) (∛x-4)/(x-64) -> 0/0 so then let cube root x = u u-4/u^3-64 u-4/u^3-64 = u-4/u-4(u^2+4u+16) the u-4 cancel each other out leaving lim x->64 = 1/u^2+4u+16 1/64^2+4(64)=16 oddly i find the number to

*asked on April 12, 2016* -
## Calculus Help Stuck Part 2?

Evaluate the lim a. lim x--> 64 (cube root x-4/x-64)

*asked on April 12, 2016* -
## Calculus Help Stuck Part 2?

b.Determine the lim x-->4 (x^2+x-20/8-2x) What Im stuck on is this f(4)= 4^2+4-20 / 8-2(4) f(4)= 0/0 x^2+x-20/8-2x = (x-4)(x+5)/-2(x-4) What do I do next I'm so confused ik i would eliminate the x-4 from numerator and denominator but what would i do with

*asked on April 11, 2016* -
## Calculus

Determine the following limits if it exists. a. lim x-->5 (4x/x-5)

*asked on April 11, 2016* -
## social studies

The Supreme Court decision in Gray v. Sanders (1963) was instrumental in A) establishing the "one person, one vote" standard for legislative districting. B) overturning the long-standing "separate but equal" standard in education. C) legalizing a woman's

*asked on March 31, 2016* -
## English

After the basketball game the students had a dance at the school. . How should the sentence be correctly punctuated? A) Add a comma after game. B) Add a comma after dance. Reactivate C) Change the period to a question mark. Reactivate D) Add an apostrophe

*asked on March 11, 2016* -
## English

Choose the sentence that contains no comma errors. A) The book, that I borrowed from Elizabeth last week was excellent. B) About four thousand years ago, Stonehenge, was a center of worship. C) Alice Jones lived at 15, Cedar Street NE, Colorado Springs

*asked on March 11, 2016* -
## Math

Jessica earns $53.35 in 5.5 hours. How much does Jessica earn in 1 hour?

*asked on March 8, 2016* -
## Science

Which solution will best allow the movers to achieve their goal? A) Change the width of the ramp from 4 meters to 3 meters. B) Change the length of the ramp from 4 meters to 5 meters. C) Change the height of the ramp from 3 meters to 4 meters. D) Change

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

The lines a and b intersect at point D. What is the value of z? z = Can you please help em solve im really stuck and confused?

*asked on January 26, 2016* -
## Calculus/Math

lim ((1-2x)/(√1+x^2)-1) x→∞ Find the value.

*asked on October 6, 2015* -
## algebra

Shoe O Rama is having a 20 % off sale this friday. Which equation below shows how to find the sale price, s, as a function of the original price, p?

*asked on June 18, 2015* -
## Algebra

The difference of two whole numbers is 27.The greater number is 3 less than twice the smaller.What are the numbers?

*asked on April 1, 2015* -
## algebra

on an expressway, the recommended safe distance between cars in feet is given by 0.019v^2+v+14, where v is the speed of the car in miles per hour. Find the safe distance when the following takes place( round answer to three decimal places). v=35 mph

*asked on September 27, 2014* -
## algebra

on an expressway, the recommended safe distance between cars in feet is given by 0.019v^2+v+14, where v is the speed of the car in miles per hour. Find the safe distance when the following takes place( round answer to three decimal places). v=35 mph

*asked on September 27, 2014* -
## geometry

v=1/3TTr^2h;

*asked on September 11, 2014* -
## algebra

A motorboat left a harbor and traveled to an island at an average rate of 11 knots. The average speed on the return trip was 10 knots. If the total trip took 4.2 hours, how far is the harbor from the island

*asked on September 11, 2014* -
## MATH

v=1/3ttr^2h; h(geometry)

*asked on September 11, 2014* -
## MATH

How many liters of water should be evaporated from 110 liters of a 12% saline solution so that the solution that remains is a 20% saline solution

*asked on September 11, 2014* -
## statistics

The trends in international mathematic and science study (TIMSS) in 2007 examined eighth grade proficiency in math and science. The mean mathematics scale score for the sample of eighth grade students in the US was 508.5 with a standard error of 2.83.

*asked on August 2, 2014* -
## Algebra

Solve h=2f/m+1

*asked on May 14, 2014* -
## math

Three men, A, B and C agree to share the expense of a fishing expedition in the ratio 2:3:4. A pays $25 for the hire of the boat, B pays $70 for the meal and C pays $49 for traveling expenses. How much must A and C pay B to settle their agreed shares?

*asked on March 15, 2014* -
## math

Two numbers are such that their difference, their sum, and their product are in the ratio 1 : 4 : 15. What are the two numbers?

*asked on March 15, 2014* -
## PHYSICS

An electron is initially at rest in, but not on the axis of, a solenoid that is carrying a steady current I directed as shown in the cross section below. The electron is initially at rest on the -x axis. The current in the solenoid is suddenly increaed to

*asked on December 15, 2013* -
## math

calculate the following, leaving your answer either as a fraction (lowest) or in decimal form Divide: 3/4 ÷ 3 =

*asked on September 17, 2013* -
## math

calculate the following, leaving your answer either as a fraction (lowest) or in decimal form Multiply: (2/3) (3/5) =

*asked on September 17, 2013* -
## math

calculate the following, leaving your answer either as a fraction (lowest) or in decimal form Subtract: 3/4 - 3/8 =

*asked on September 17, 2013* -
## math

calculate the following, leaving your answer either as a fraction (lowest) or in decimal form Add: 3/8 + 1/2 + 3/4+=

*asked on September 17, 2013* -
## Mechanics:Statics

Two 10 kg spheres are placed 500mm apart. Express the gravitational attraction acting on one of the spheres as a percentage to its weight on earth.

*asked on April 19, 2013* -
## 8th grade science

Good hypothesis for does the human tongue have definite areas for certain tastes

*asked on February 3, 2013* -
## science

Does the human tongue have definite areas for certain tastes

*asked on February 3, 2013* -
## math

First estimate,then multiply to get the exact answer. 6 2/3 X 3 4/11 X 5

*asked on December 18, 2012* -
## Physics

An 80 kg man climbs a 50 m-high hill in 20 minutes. What is the average power in watts he expends climbing the hill?

*asked on November 20, 2012* -
## Physics

The weight of a rock on the moon is 0.85 N. If acceleration due to gravity on the moon is 1.7 m/s2, what will be its weight on the earth

*asked on November 10, 2012* -
## science

make a graphic organizer to show ways how ways to cause physical changes to a piece of paper

*asked on October 2, 2012* -
## math

there are 45 children in a class.if there are 3 more girls than boys,how many are girls?

*asked on September 4, 2012* -
## math

i am a three digit number.if you subtract 419 from me the remainder is 126.what number am i?

*asked on September 4, 2012* -
## math

there are 45 children in a class.if there are 3 more girls than boys,how many are girls?

*asked on September 4, 2012* -
## Statistics

The annual precipitation for one city is normally distributed with a mean of 72 inches and a standard deviation of 3.5 inches. In 95% of the years, the precipitation in this city is between___ and ___

*asked on July 23, 2012* -
## physics

A mass of 710 kg is located at the origin. A second mass, 44.0 kg, is located at the point (0.216,0.702) m. Find the magnitude of the gravitational force on the 44.0 kg mass due to the 710 kg mass at the origin. I got: 3.86×10-6 N Enter the x and y

*asked on April 28, 2012* -
## physics

A bullet of mass m = 5.89 g is fired into a block of mass M = 3.09 kg that is initially at rest on the edge of a smooth table. (The table top is 0.83 m above the floor.) The bullet ends up stuck in the block, and together they fly off the table and fall to

*asked on April 8, 2012* -
## math

i do not get this question 24 / x = 4

*asked on February 2, 2012* -
## physics

A 0.58 kg football is thrown with a velocity of 15 m/s to the right. A stationary receiver catches the ball and brings it to rest in 0.017 s. What is the force exerted on the receiver? Answer in units of N

*asked on January 30, 2012* -
## physics

one of the factors that limits the reach of a crane is the moment created by the load, measured with the respect to an axis A at the base of the front support. if the boom shown is 30m long, and at an angle of 25 degrees with the horizontal, determine the

*asked on September 13, 2011* -
## physics

A person is to run a circular track with a radius of 93 meters. The person starts at a certain spot and runs 3 and 1/2 times around the track in a time of 227 seconds. Find the magnitude of average velocity for this trip (|vav|) and find the average speed

*asked on September 3, 2011*

## Pages

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