# Posts by ANONYMOUS

Total # Posts: 109,564

**science**

why displacement uns uitable for determine t v volume of charcoal

**math**

Use the formula to solve for c. Choose the right answer. Amount Financed (m) = $275 Number of Payments per year (y) = 12 Number of Payments (n) = 18 APR (I) = 12%

**Physics pls help**

A ball with massm1=4.0 kgam is traveling to the right with the velocityv1=6.0m/s another ball with mass m2=2.0kh is traveling to the left with velocity -4.0m/s find the final velocity of the ball after the collision Find the loss in Kenetic energy Find the impulses imported to...

**chemistry**

Nitrogen dioxide reacts with water droplets in the atmosphere to produce nitric acid and nitrous acid.

**Math**

Population in a city was 8,60,000. In the next year, if it is increased by 14000 more one tenth of the previous population, the present population in the city?

**Math**

241×107

**maths sir steve help me reiny**

X=at ² and y =2 at are parametric equations of

**ap physics**

Two 25.0 g spheres are hanging from lightweight strings that are each 35.0 cm in length. Each has the same charge. They repel each other and make an angle of 5.00? to the vertical. What is the magnitude of the charge on each sphere?

**AP physics**

ah never mind i mixed up p wiht power instead of resistivity.

**AP physics **

What is the resistance of a copper wire, diameter of 1.50mm and length of 25.0 m? i got R=pl/A R=p(25m)/(3.14*(.00075^2)) how ever i found the answers online and they give me this (1.68*10^-8)(25.0)/(3.14*(.00075^2))

**Science 8.4**

Which arrangement below lists elements of the same group, in order, from those having least protons to those having the most protons? o,s,se,te na,s,al,cl o,n,b,ki rb,k,na,li

**math**

(coty sec^2 y-coty)/(siny tany+cosy)

**Social Studies**

The correct answers are D D C

**Math, Ratio and Proportion**

34.666

**Science**

How many molecules of Br2 react with 1.11 x 10^20 molecules of F2

**Math**

If there is a laws of 40 students and only 85% of the class passed how many passed the test

**physics**

A 0.054-kg pet lab mouse sits on a 0.35-kg air-track cart, as shown in (Figure 1) . The cart is at rest, as is a second cart with a mass of 0.25 kg. The lab mouse now jumps to the second cart. After the jump, the 0.35-kg cart has a speed of v1=0.80m/s. What is the speed v2 of...

**math **

In a recent student government election, the ratio of students who voted for the winner to all the students who voted was 0.68. The number of students who voted was 75. How many votes did the winner get?

**Calculus**

Find the volume of the solid obtained by rotating the region bounded by the given curves about the specified axis. y=x^2,y=1; about y=7

**Marcques**

Whats the product of 1 3/5 and 8

**chem**

Which equation shows a reaction that will occur at room temperature and pressure? A Br2(aq) + 2NaCl (aq) Ã¢â€ â€™ 2NaBr(aq) + Cl 2(aq) B Br2(aq) + 2NaI(aq) Ã¢â€ â€™ 2NaBr(aq) + I2(aq) C I2(...

**Calculus**

The position at time t of an insect crawling along the x-axis is given by x(t) = t^3 - 3t^2 - 9t + 4. What is the maximum velocity on the closed interval 0 <= t <= 2?

**arithmatic series**

Could someone show me the difference between arithmetic sequence and series

**Bio**

I'm not sure weather it's A or D @Ms. Sue

**Bio**

The thyroid ___ A. controls the endocrine system. B. Regulates the metabolism. C. controls sexual characteristics. D. regulates metabolism of glucose Please help I'm missing part of my book

**Bio**

Blonde hair (bb) is a recessive trait and brown hair (Bb) is dominant. If both parents have brown hair, what must be true if one of their children have blonde hair? A. Both parents must be hybrid with regard to hair color (Bb) B. Both parents have two brown hair genes (BB) C. ...

**math NEED ASAP**

the difference between combination and permutation

**Bio**

Which of the following is true? A. In the human female, ovulation occurs in nine-month cycles. B. Egg cells develop in a structure called the uterus and are released at the rate of one a month. C. Spermatogenesis is the process of fertilization of the egg cell. D. The fluid in...

**Biology**

Chemicals which control the growth and function of organs are ____ A. chromosomes B. hormones C. glucose D. endocrines

**Biology**

Blonde hair (bb) is a recessive trait and brown hair (Bb) is dominant. If both parents have brown hair, what must be true if one of their children have blonde hair? A. Both parents must be hybrid with regard to hair color (Bb) B. Both parents have two brown hair genes (BB) C. ...

**Biology**

Which of the following is true? A. In the human female, ovulation occurs in nine-month cycles. B. Egg cells develop in a structure called the uterus and are released at the rate of one a month. C. Spermatogenesis is the process of fertilization of the egg cell. D. The fluid in...

**Biology**

The thyroid ___ A. controls the endocrine system. B. Regulates the metabolism. C. controls sexual characteristics. D. regulates metabolism of glucose.

**Chemistry**

Which of the following is true? A. In the human female, ovulation occurs in nine-month cycles. B. Egg cells develop in a structure called the uterus and are released at the rate of one a month. C. Spermatogenesis is the process of fertilization of the egg cell. D. The fluid in...

**Chemistry**

Consider the following electrochemical cell: Al(s) | Al^3+(aq)(0.155 M) || H^(aq) (0.00233 M), MnO4^-(aq)(0.0377 M), Mn^2+(aq) (0.0168 M) | C (graphite) Write a balanced equation for the redox reaction taking place in this cell. i am having trouble with the cathode half ...

**Math**

1/4 of a dozen eggs equal what

**Ethics in health care**

Why does the Philippines encourage the migration of nurses and other health care professionals? Why does Cuba send many of its health care professionals to other countries? Are the reasons in those two countries similar or different? Help

**Math**

Wes has 20 feet of garden fencing. If he wants the smallest side of his garden to be 3 feet or longer, what possible rectangles can he make?

**Chemistry**

Which statement about this reaction is FALSE? AgNO3 + NaCl -> AgCl + NaNO3 A. This is one kind of metathesis reaction, where molecules exchange atoms. B. This reaction produces a gas. C. This is a precipitation reaction. D. The equation is balanced

**S.S.**

Is it A toy becomes popular and increasingly scarce

**maths (probability)**

1) A basket contains 3 red and 2 yellow apples. Two apples are chosen at random. Find the following probabilities: a) P(one red, one yellow) b) P(at least one red) 2) A card is drawn from a standard deck. Find the following probabilities: a) P(a jack or a king) b) P(a jack or ...

**Chemistry**

A buffer contains the weak acid HA abd its conjugated base A-. The weak acid has a Ka of 1.51 x10^-5 and the buffer has a pH of 4.25. Which statement is true about the relative concentrations of HA and A- in the buffer? A) [HA]>[A-] B) [HA]<[A-] C) [HA] = [A-]

**Physics**

Your argument is correct but do you really mean 0.5 cm? If so then work is 50 N * .005 meters.

**pre calc**

If theta is zero then cos(?) is one and sin(?)is zero

**statistical reasoning**

One hundred people are selected at random and tested for colorblindness to determine whether gender and colorblindness are independent. The following counts were observed. Colorblind Not Colorblind Total Male 7 53 60 Female 1 39 40 Total 8 92 100 State the null and alternative...

**statistical reasoning**

One hundred people are selected at random and tested for colorblindness to determine whether gender and colorblindness are independent. The following counts were observed. Colorblind Not Colorblind Total Male 8 52 60 Female 2 38 40 Total 10 90 100 Find the value of the X2 ...

**Basic Geometry**

Someone help me check my answers Dakota built a wall with bricks like this one: A=5 B=8 Look at Dakotaâ€™s wall: What is the length of the side of the brick labeled a? ____5__ inches______ What is the length of the side of the brick labeled b? ____8 ...

**US History**

I meant to say c?

**US History**

During the 1812 war, the Americans were most successful on a) sea b) Lake Champlain and Lake Erie c) on land

**Math - Calc**

Sketch the region R bounded by y=x+6, y=x^3, and 2y+x=0 then find its area. I know sketching is kind of difficult here, but I would appreciate any help on how to approach this problem. Thanks

**Algebra**

A biologist studied the populations of black bear and brown bears over a 10-year period. The biologist modeled the populations, in thousands, with the following polynomials where x is time, in years. black bears: 2.3x^2 - 5.6x + 2.3 brown bears: 2.4x^2 + 7.2x + 0.97 What ...

**Calculus indefinite integrals**

Evaluate the following indefinite integrals using substitution a) ? xsqrt(x^2-7) dx b) ? x^(2/3)(1/5x^(5/3)+2)^4 dx

**Calculus**

x(x^2-2x+1) -1(x^2-2x+1) = x^3 - 2x^2 + x - x^2 + 2x - 1 = (x^3 + 3x)odd ( -3x^2 -1) even the odd part will give zero (+ on one side of x = 0 and - on the other) so -x^3 - x = - (x^3+x)so (x^3+x) at -1 - at +1 -1-1 - 1-1 = -4

**SS**

Which of these people is part of the labor force. A an eighth grader with a paper route B a retired sales person. C a full-time college student****** D a auto mechanic

**SS**

Thanks

**SS**

Which of the following is most likely to happen if many families in the community stop spending as much money at the local grocery store A farmers would produce more cops to increase supply B the grocery store would lay off several employees C the grocery store when best and ...

**life orientation**

I DONT KNOW THA WHY IVE SEARCHED FOR IT

**Math**

13 2/3 INTO AN IMPROPER FRACTION 41/3 DIVIDED BY 2/3 DO THE KEEP, CHANGE ,FLIP 41/3*3/2=41/2 CHANGE TO A MIXED NUMBER. BY DIVIDING 41 TO 2 =20 1/2 ALSO IN DECIMAL FORM 20.5

**math**

Can someone help me and explain what (10P4-) is pls?

**math 105**

Suppose the scores of students on an exam are normally distributed with a mean of 501 and a standard deviation of 72. Then approximately 99.7% of the exam scores lie between the integers and such that the mean is halfway between these two integers. Use the empirical rule.

**Social**

Does having an unusual name, such as Chastity, Englebert or Moon unit, have an effect on how a child develops? The results of some previous studies agrees with the commonsense idea that such as name could cause a child to be rejected or ridiculed and thus could have a negative...

**physics**

frequency is proportional to square root of k so to double frequency you need 4 times the original k

**Social Studies 1**

thank you Ms.sue

**Social Studies 1**

3.C ?

**Social Studies 1**

Geographers want to know how people living in hazard-phone areas are affected by natural disasters such as floods, hurricanes, tornadoes, and earthquakes. Although the number of natural disasters has remained relatively constant over the years- thirty per year throughout the ...

**Biology**

What is an artery

**math**

For every 8 squirrels that Travis sees in his backyard, six are dining at the bird feeder. Travis saw 28 squirrels today. About how many were eating birdseed?

**economics**

so for 7 its c? since something created by an individual inventor does not have the government involved?

**economics**

7. Which situation is more likely to occur in a market economy than a command economy? A. People line up for cheap but scarce products. B. A student is guaranteed a job out of college. C. An inventor designs and produces a new type of car. D. A committee chooses which farms ...

**math**

The graph of the equation 8x–5y=14 passes through a point with an abscissa of 1.2. Find the ordinate of the point. I got .8 repeating but my teacher said that it was wrong. I then got 9.6 and it was also wrong. what am I doing wrong and can you put the answer with the ...

**chemistry**

Why can't you form an acid salt from a monoprotic acid?

**physics**

a ball of mass 0.220-kg that is moving with a speed of 5.5

**algebra**

I need to write an inequality with the following information;I have a summer business selling book markers. They cost .75 to make and I'm selling them at $4.00 each. Write an inequality with variables showing earnings with the sale price and the number sold. I'm so ...

**Ethics**

Should people from wealthy countries be allowed to obtain organ transplants from individuals in developing countries? Help?

**Social studies**

thank you

**Social studies**

which of the following statements about World War 1 would be most difficult to prove and disprove a. American casualties were more numerous than in any other war. b. it was the first war in which the opposing sides used airplanes c. the U.S government spent more on armaments ...

**Social studies**

ok i really think its D for #4, please help

**Social studies**

2.E 3.B 4.E

**Social studies**

Does having an unusual name, such as Chastity, Englebert or Moon unit, have an effect on how a child develops? The results of some previous studies agrees with the commonsense idea that such as name could cause a child to be rejected or ridiculed and thus could have a negative...

**Precalculus**

f(y)=-1/5y^4 What is the power function and constant of variation?

**social studies please help physics**

If the abesolute pressur at the bottom of a fresh water pond is 2.313*10^5 PA,what will be the depth of the pond?

**french 1**

true

**History**

Thank you

**History**

Explain the effects of World War II, on both the United States and on Georgia. so far I've got, the economy declined,

**Science**

When the sun, Earth, and moon are in a line

**English**

ada

**English**

ada

**English**

ada

**English**

What's Karen doing over there. She is supposed to be studying, but it looks like she is playing Andrew's game.

**Algebra**

The answer is 1.8816 * 10^25

**Algebra**

Astronomers measure large distances in light-years. One light-year is the distance that light can travel in one year, or approximately 5.88*10^12 miles. Suppose a star is 3.2*10^12 light-years from Earth. In scientific notation, approximately how many miles is it? a) 1.88 * 10...

**physics**

2. What value did you calculate for the index of refraction of the glass block in Part 2? How does your value compare to the accepted value of 1.53? Calculate the percentage error. Different materials have distinct indexes of refraction. Explain how you might identify a ...

**World history**

Thanks Ms.Sue

**World history**

Am i right?

**World history**

Wait i think the answer is C

**World history**

I think its A

**World history**

Need help ASAP What was one result of Hitlers invasion of the soviet union. A: Germany gained access to soviet factory's and farms. B: Stalin fled to the soviet union. C: Germany was able to take control of Leningrad. D: Churchill and Stalin became allies

**Social studies **

The spread of Christian ideas

**College Algebra**

a farmer has 500 feet of fence with which to fence a rectangular plot of land. The plot lies along a river so that only three sides need to be fenced. Estimate the largest area that can be fenc

**Social Studies Please help**

That's probably correct. It's certainly the best answer of the four. PS -- Do not comment on other students' posts, please.

**Calculus**

The data is for weekly sales in the dry goods department at a Wal*Mart store in the Northeast. Peak values, I.e. spikes, usually occur at holiday periods. Week 1 is the first week of February 2003. To show continuity, week 1 of 2004 is represented as week 53 since week 53 ...