Tuesday

October 25, 2016
Total # Posts: 101,419

**Maths**

8 people in the playground. How many ways can 6 people be selected to play? Find the rule.

*October 25, 2016*

**Maths**

Morgan combines 48 red marble and 45 blue marble, he divides them equally into baskets. Find the rules.

*October 25, 2016*

**Maths**

Morgan combines 48 red marble and 45 blue marble, he divides them equally into baskets. Find the way how he writes.

*October 25, 2016*

**stats**

A preliminary survey shows that 35% of college students smoke. In a class of 42 students, what is the probability that more than half the students smoke? Use Appendix B.1 for the z-values. (Round the z-value to 2 decimal places and the final answer to 4 decimal places.)

*October 25, 2016*

**Torque**

The meterstick shown to the right is 100 cm long. It is free to pivot around its center of gravity (CG), which is at the 50-cm mark. There is a 25.0-N block hanging from the 80-cm mark. Decide where each of the other blocks should be placed, one at a time, to balance out the ...

*October 25, 2016*

**chemistry**

Calculate the mass of oxalic acid needed to prepare 150 ml of 0.442 M C2H2O4.

*October 25, 2016*

**social studies**

russias economy is complicated most by?

*October 25, 2016*

**Language Arts**

Can someone help? Please?

*October 25, 2016*

**Language Arts**

I think the answers are: 1. is 1 2. is 2 3. is 1 and 2 4 is 4

*October 25, 2016*

**Language Arts**

I think the answers are: 1. 2 2. 4 3. 1, & 2 4. 4

*October 25, 2016*

**Language Arts**

Please help me with these questions and answer them all if you can. The electoral college determine who becomes president and vice president. each state is given two votes in the college, as well as extra seats based on the states population. what is the purpose of the ...

*October 25, 2016*

**Maths GRE**

correct

*October 25, 2016*

**Math**

What is 699 divided by 40% equal

*October 25, 2016*

**math**

2/5 * 3/5

*October 25, 2016*

**math**

a person spent $20 000 to the nearest thousand naira

*October 25, 2016*

**Chemistry**

Calculate the mass of water produced when 9.53 g of butane reacts with excess oxygen

*October 24, 2016*

**algebra**

On average a family of four consums 247.2 gallons of water per day. Calculate the quarterly bill for family of four

*October 24, 2016*

**Physics**

A 1.96 kg toy train rolls around a circular horizontal track. If the train has an angular acceleration of -1.95 rads/s2 and is released with an angular speed of 33.0 rpm, what time is required for the train to come to a complete stop?

*October 24, 2016*

**Physics **

The 10 kg mass is released from rest at a height of 1m above the floor. If the co-efficient of kinetic friction between the 5 kg mass and the table is 0.28, what will be the speed of the 10 kg mass just before it hits the floor? Please show the equation and then plug the ...

*October 24, 2016*

**chem**

what must happen for an element to emit visible light

*October 24, 2016*

**math**

When making a batch of orange juice, Jakie used 5 times as much water then concentrate. There were 32 more cups of water than concentrate

*October 24, 2016*

**Physics**

Thank you!

*October 24, 2016*

**Physics **

Jane swings on a 30m long vine initially inclined at an angle of 37o from the (downward) vertical. What is her speed at the bottom of her swing if a) she starts from rest? b) she pushes off with an initial speed of 4 m/s? Help please. Show the equation and then plug in the ...

*October 24, 2016*

**Physics**

Thank you so much!

*October 24, 2016*

**Physics **

A pitcher hurls a 0.25kg ball around a vertical circular path of radius 0.6 m, applying a tangential force of 30N, before releasing it at the bottom of the circle (underhand pitch). If the speed of the ball at the top of the circle was been 15 m/s, what will be the speed just ...

*October 24, 2016*

**Math**

In physics, one learns that the height of an object thrown upward from an initial height of h0 feet with an initial velocity of v0 (in feet per second) is given by the formula h(t)=−16t^2+v0t+h0 feet where t is the amount of time in seconds after the ball was thrown. ...

*October 24, 2016*

**Math**

Monica stepped outside and began to think how fast she is moving even when she is standing still. Assume that the earth is a sphere with a radius of 3960 miles and Monica is at a latitude of 13∘N. What is Monica's speed due solely to the rotation of the earth in ...

*October 24, 2016*

**Math, Precalc**

just place the right side over a common denominator and equate the coefficients of the polynomials. You will get three equations in A,B,C. Solve them to get (9,6,1)

*October 24, 2016*

**Math, Precalc**

Find values of the constants A, B, and C such that (16x^2+48x−216)/(x^3−36x)=A/(x−6)+B/(x)+C/(x+6).

*October 24, 2016*

**History**

Who first thought they had encountered the ten "lost tribes"? This question is a response question if you can write it in a few sentences if not that's fine.

*October 24, 2016*

**Chemistry**

In a three reactions system the first two reactions are endothermic with DeltaH values of 138kj and 241kj. if the final reaction is exothermic what is the minimum value of DeltaH3 that would make the overall reaction exothermic? explain your reasoning. i beleive the minimum ...

*October 24, 2016*

**chemistry**

How much heat (in kilocalories) is evolved or absorbed in the reaction of 1.60 g of Na with H2O? 2Na(s)+2H2O(l)→2NaOH(aq)+H2(g), ΔH = -88.0 kcal (-368 kJ)

*October 24, 2016*

**Chemistry**

Na2CO3(aq)+ 2HNO3(aq)--> 2NaNO3+H2O(l)+CO2(g) how do I get net ionic?

*October 24, 2016*

**math**

If A=(1.4.7.9) and B=(4,5,6,7,8) Find: n(A)=

*October 24, 2016*

**Math**

There are 4 people in the playground. How many ways can 3 people be selected to play?

*October 24, 2016*

**Math**

What is the last digit of the number 4^2006

*October 24, 2016*

**world history ap**

What are some similarities and differences between Mesoamerican and early indus civilizations

*October 24, 2016*

**Maths**

find the formulas of the Next three terms rule of 36, 49, 64, 81, .....

*October 24, 2016*

**Maths**

Next three terms rule of 36, 49, 64, 81, .....

*October 24, 2016*

**Math**

The side of a square is 15 cm. Calculate the length of its diagonal. (1dp)

*October 24, 2016*

**Chemistry**

In a three reactions system the first two reactions are endothermic with DeltaH values of 138kj and 241kj. if the final reaction is exothermic what is the minimum value of DeltaH3 that would make the overall reaction exothermic? explain your reasoning. i beleive the minimum ...

*October 23, 2016*

**Math**

A farmer has only pigs and chickens. When she stands on her porch and surveys her stock, she sees 22 heads and 52 legs. How many chickens does she have and how many pigs?

*October 23, 2016*

**Chemistry **

Balance the following redox reaction in basic solution. H2(g)+Fe3+(aq) ---> H2O(l)+Fe2+(aq)

*October 23, 2016*

**Math**

What is the last digit of the number 4^2006

*October 23, 2016*

**Maths**

Mona has scored 94 points in the last six basketball games. If she earns two points per basket, how many baskets at all must she shoot in the next six games for her average points per game to be 16?

*October 23, 2016*

**math**

If each small square on a grand chess board is 2 cm by 2 cm, each diagonal of the whole board measures 800 cm. How many small squares are on the board?

*October 23, 2016*

**accounting**

The entry to transfer a net loss to the owner's capital account would include a debit to

*October 23, 2016*

**5th grade math**

a sticker costs 15 cents, and a packet of similiar stickers cost $1. clement buys 37 stickers. what is the least amount of money that clement spends on the stickers

*October 23, 2016*

**Math Homework**

The Men's 400 meter race 5th finisher LESLIE DJHONE from France 45.11/ The Women't 400 meter race 5th place finisher was ANASTASIA KAPACHINSKAYA from Russia 50.03. If both of those 5th finishers had completed in the semifinals of the 2013 World Championships with ...

*October 23, 2016*

**math**

An art class is making a mural for their school which has a triangle drawn in the middle. The length of the bottom of the triangle is x. Another side is 10 more than four times the length of the bottom of the triangle. The last side is 3 more than the bottom of the ...

*October 23, 2016*

**maths need help too hard**

4^x+3^x=9^x find x thanks

*October 23, 2016*

**Maths**

what is a rule of next three terms of 6, 10, 15, 21, ....., ......, .....

*October 23, 2016*

**Math**

Two riders, A and B leave the starting line at the same time. A takes 12 minutes to complete one lap and the B takes 18 minutes. How long in minutes after they will it take for them to meet again at the starting line?

*October 23, 2016*

**math**

Gordon swims 4 metres for every 1 metre Maria swim. By how far in metres will Gordon beat Maria if the race is 50 metres?

*October 23, 2016*

**Maths**

Draw a rectangle in which each diagnol=6cm and the acute angle between them is 45

*October 23, 2016*

**math **

Write 360 as powers of its prime factors

*October 23, 2016*

**math**

write in index form 3/8 x 3/8 x 3/8

*October 23, 2016*

**math**

list the set of: counting numbers from 20 to 30

*October 23, 2016*

**physics**

Calculate the mass of moon if free fall acceleration near it surface is know be 1.62 m/s^2 ( radius of moon is 1738 Km )

*October 22, 2016*

**Math 7 grade**

Now I have the answer to my hw

*October 22, 2016*

**physics numerical **

A 15 g bullet is fired from a gun of mass 2kg with a speed of look m/s . Find the recoil velocity of the gun.

*October 22, 2016*

**Chemistry**

Find the frequency if given energy 6.3x10^-19 Do I use the formula E=hf? 6.3x10^-19=6.626x10^-34(f) Then do I divide E and H?

*October 22, 2016*

** Describing Data**

The following frequency table contains the total number of deaths worldwide as a result of earthquakes from 2000 to 2012. Year Deaths 2000 231 2001 21,357 2002 11,685 2003 33,819 2004 228,802 2005 88,003 2006 6,605 2007 712 2008 88,011 2009 1,790 2010 320,120 2011 21,853 2012 ...

*October 22, 2016*

**english**

"They have arried in the Land of opportunity and the opportunities are swirling dizzily promiscuously around them" Is this quote suppose to have a negative connotation? The passage I got it from is about someone arriving to America and being disappointed but I cant ...

*October 22, 2016*

**Science **

an object of mass 2 kg is dropped from a certain height.On rebounding from the ground,it rises vertically till 2/5th of its initial height.what will be the ratio of magnitude of momentum of the object just before and after striking the ground?

*October 22, 2016*

**science**

Mass of 48.176 * 10raze to power 23 molecules of CH4 will be

*October 22, 2016*

**science**

Now what happens if your feet hit a slippery spot on the ground? your feet slip and the (blank) cant exert as much force back on you.

*October 22, 2016*

**Algebra**

Suppose U={1,2,3,4,5,6,7,8,9,10} is the universal set, and P={1,4,9}. What is P'? A. {2,3,5,6,7,8} B. {2,4,6,8} C. {1,2,3,4,5,6,7,8,9,10} D. {2,3,5,6,7,8,10} Is the answer D? Thank you

*October 21, 2016*

**Math**

In set-builder notation, how do you write the soultions of the inequality? 5x+17>=7 A.{x|x>=2} B.{x|x>=-2} C.{x|x<=-2} D.{x|x<=2} 2. In set-builder notation, how do you write the solutions of the inequality? -4-x>=-2 A. {x|x>=-2 B. {x|x>=2 C. {x|x<=-...

*October 21, 2016*

**Physics**

A neutron with mass 1.67e-27 kg moving with speed 5.0 × 101 km/s makes a head-on collision with a boron nucleus, originally at rest, with mass 1.66e-26 kg. A) If the collision is completely inelastic, so the particles stick together, what is the final kinetic energy of ...

*October 21, 2016*

**History**

1.What did the colonist believe their rights were? 2.What limits are there on these rights? 3.What problems did colonist have with King George? 4.Did the colonist feel that these rights were were being violated.If so,why?

*October 21, 2016*

**Health care**

computer data or consumer since its saying other relevant details

*October 21, 2016*

**Health care **

Which of the following refers to the presentation of patient information in a useful form and the association of other relevant details with it? Computer data Health information Patient data Health data Consumer information Computer dat? was my gut choice

*October 21, 2016*

**Health care tech**

Which of the following are required by networks? A network card A network router Network cables Hardware and software All of these B and C but im assuming all of these

*October 21, 2016*

**English **

Pablo insists that a conclusion should reinforce the thesis statement. Patrice says that the conclusion should follow logically from the introduction. Who is correct? A. Both Pablo and Patrice are correct. B. Neither Pablo nor Pam is correct. C. Only Pam is correct. D. Only ...

*October 21, 2016*

**Chemistry**

The specific heat of a metal was found to be 0.38 J/g*°C. When 0.5007 g of this metal was heated in a stream of chlorine gas, it produced 1.0586 g of a metal chloride, MClx. a. Determine the formula of the metal chloride and the accurate atomic weight of the metal. b. What...

*October 21, 2016*

**Cost Volume Profit Analysis (Math)**

Margin of safety - 20% Fixed costs - $900,000 Contribution margin - 25% Break-even - 12,000 units Calculate actual total sales revenue. I have been trying this question out in many different ways however I still cannot solve it. Could someone show me the formulas and steps I ...

*October 21, 2016*

**Math**

What number has 7 tens and 3 less ones than tens?

*October 21, 2016*

**efe**

find the formula for calculating compound interest. If Mr. John Chrystal invests $6,000 today (Present Value) at a compound interest of 9 percent, calculate the Future Value of the investment after 30 years using the compound interest formula. In addition, calculate the ...

*October 21, 2016*

**physics qui**

The radius of the Earth is 6.37Ã—1000000 m and its average dencity is 5.517Ã—1000kg/mÃ—mÃ—m.calculate the mass of earth to correct significant figures.

*October 21, 2016*

**Literature Study**

so what are the answers?

*October 21, 2016*

**Literature Study**

I cant find my book so i need help with this quick check. 1. Jimmy wears his army costume to bed because he a. wants to be ready to play as soon as he wakes up b. refuses to wear anything else c. likes to play even when he is supposed to be sleeping d. forgets to take it off. ...

*October 21, 2016*

**math**

Which equation is set up correctly to determine the volume of a 3.2 mole sample of oxygen gas at 50°C and 101.325 kPa? V=(3.2 mol)(8.314 L⋅kPa/K⋅mol)(323 K)101.325 kPa V=(3.2 mol)(8.314 L⋅kPa/K⋅mol)(50∘C)1 atm V=(8.314 L⋅kPa/K⋅mol...

*October 21, 2016*

**Math **

An automated production line uses distilled water at a rate of 300 gallons every 2 hours to make shampoo. After the line had run for 7 hours, planners noted that 2,500 gallons of distilled water remained in the storage tank. Write a linear equation relating the time in hours x...

*October 21, 2016*

**statics**

The following is a list of 12 measurements: 50, 57, 85, 34, -28, 68, -17, -33, 81, -12, -70, -17 Send data to Excel Suppose that these 12 measurements are respectively labeled . (Thus, is labeled , is labeled , and so on.) Find .

*October 20, 2016*

**Physics **

At what speed would a 50kg person have to run to have the same kinetic energy as a 1000kg auto traveling at 100 km/h? Help ASAP please!! Show work step by step along with the equation

*October 20, 2016*

**Physics **

Use the Work-Energy Theorem to show that an object with initial velocity vo will travel a distance d across a rough horizontal surface before stopping, where d = vo2/(2mKg). Help ASAP please!!

*October 20, 2016*

**Physics **

Starting from rest, a 5kg block slides 2.5 m down a rough 30o incline in 2 seconds. Find a) the work done by the force of gravity. b) the work done by friction. c) the work done by the normal force Help ASAP please!! Show work step by step only with the equation

*October 20, 2016*

**american goverment check answers**

B

*October 20, 2016*

**american goverment check answers**

2. In what way does geographic location influence cabinet secretary selection? (1 point) The president selects cabinet members to give regional balance to his ...

*October 20, 2016*

**Math **

What is 17% of 800 and 83% of 800?

*October 20, 2016*

**american goverment check answers**

3. The National Science Foundation (NSF) raises money for scientific projects and research in the United States. What kind of agency is the NSF? (1 point) ...

*October 20, 2016*

**Describing Data**

The following frequency table contains the total number of deaths worldwide as a result of earthquakes from 2000 to 2012. Year Deaths 2000 231 2001 21,357 2002 11,685 2003 33,819 2004 228,802 2005 88,003 2006 6,605 2007 712 2008 88,011 2009 1,790 2010 320,120 2011 21,853 2012 ...

*October 20, 2016*

**check my work (american goverment)**

7. What best describes a faithless elector? (1 point) an elector who cheated to become an elector an elector who fails to vote an elector who votes for ...

*October 20, 2016*

**physics need help**

An object , constrained to move along the x-axis is acted upon by a force F(x)=ax + bx^2 where a=5N/m , b=-2m/s The object is observed directly from x=1m to x=3.0 m... How much work is done by the force?

*October 20, 2016*

**check my work**

5.b 6.c

*October 20, 2016*

**check my work **

5. What kind of primary does the following scenario describe? A candidate competes in a state’s presidential primary and wins 26 percent of the popular...

*October 20, 2016*

**maths sequence**

Find the sum of the first eight terms of a linear sequence whose first term is 6 and last team is 46. Plz help

*October 20, 2016*

**mathematics**

a student answers 90% of the questions on a math exam correctly.if the answers 27 questions correctly.how many questions are on the exam?

*October 20, 2016*