# Posts by cesar

Total # Posts: 74

**Physics**

A girl throws a ball vertically upwards at 10m/s from the roof of a building 20m high. How long will it take the ball to reach the ground? What will its speed be when it strikes the ground?

**math**

you spin two spinners, each of which is divided into five congruent sections numbered 1 to 5. list all possible outcomes. then find the probability of getting the same number on both spins

**math**

A quilt is made of 24 equal squares. It measures 3'/ 4.5' rectangle. What is the dimension of 1 square?

**Math**

when linda and martin work together painting one room, they can complete the work in 5 hours. when linda works alone it takes her 7 hours to paint the same room. how long would it take marvin to paint the room alone?

**math**

-8--2

**chemistry**

What is the total concentration of cations in a solution made by combining 700.0 mL of 3.0 M (NH4)3PO4 with 300.0 mL of 2.0 M Na2SO4? numbers next to compounds are subscripts

**Shakespear**

romero offers

**math**

Is the answer x= 28/3

**geometry**

AB=9a BC=12a AC=42 I don't understand how to work this out if I don't have say 3y+1.

**science**

parent generation is the generation of being a dad or mom and generation that comes before and after it is history

**Finance and literacy**

$2164

**Chemistry**

29.75

**Physics**

A boy on a 2.4 kg skateboard initially at rest tosses a(n) 8.2 kg jug of water in the forward direction. If the jug has a speed of 3.0 m/s relative to the ground and the boy and skateboard move in the opposite direction at 0.57 m/s, ﬁnd the boy’s mass. Answer in ...

**C++**

hi i need some help on my final it says create an application that allows the user to enter a customer's account number. The application should lookup name and balance based on the account number according to the following list: (NOTE: you will be given a new file of data ...

**programming**

hi i need some help on my final it says create an application that allows the user to enter a customer's account number. The application should lookup name and balance based on the account number according to the following list: (NOTE: you will be given a new file of data ...

**Physics**

How many calories will take to convert 5 grams of 90C degree water to 0 C degree?

**english**

B.Figure of speech

**Business Management**

1. Identify the publisher and the number of pages for Ellison's 2002 edition of Invisible Man.

**Health**

i got c is that right

**health**

is it d

**Algebra**

Do the equations x = 4y + 1 and x = 4y – 1 have the same solution?

**Physics. PLEASE HELP!!**

for KE since you already have all the numbers... KE1 + KE2 = (.5*I1*W1^2) + (.5*I2*W2^2)

**Social studies**

substitution

**4 th grade Math**

Of the first graders who were asked, 1/6 like math best, 2/3 like reading best, and 12 like science best. How many first graders were asked their favorite subject? Into how many equal parts should the picture be divided?

**american literature**

Can anyone check my research paper and tell me what i did worng and how i can improve it?

**Calculus**

Suppose that p(x) is the density function for heights of American men, in inches, and suppose that p(69)=0.22. Think carefully about what the meaning of this mathematical statement is. (a) Approximately what percent of American men are between 68.7 and 69.3 inches tall? b) ...

**Calculus**

On b, it was If P(69)=0.5

**Calculus**

Suppose that p(x) is the density function for heights of American men, in inches, and suppose that p(69)=0.22. Think carefully about what the meaning of this mathematical statement is. (a) Approximately what percent of American men are between 68.7 and 69.3 inches tall? b) ...

**math**

Three Fractions Equal To 39/13

**Math: Functions**

But with units.. how would it be?? cause it remarks be sure to include units! pleasee

**Calculus**

Evaluate the integral INT(x^4+6x^3+5x^2+8)/(x^2+6x+5)dx Please help.

**Physics**

A total 3.09e6 electrons are placed on an initially uncharged wire of length 1.36 m What is the magnitude of the electric filed a perpendicular distance of 0.417m away from the midpoint wire? I used E=k|Q|/(x(x^2+L^2/4)^1/2) and I got 9.37e16 N/C which is too large. Can ...

**Physics...help please!**

I think I got it... 32.0 degrees?

**Physics...help please!**

Unlike a ship, an airplane does not use its rudder to turn. It turns by banking its wings: The lift force , perpendicular to the wings, has horizontal component, which provides the centripetal acceleration for the turn, and a vertical component, which supports the plane’s...

**Calculus**

Find dy/dx in terms of x and y if (x−a)^9+y^9=a^9. Assume that a is a constant

**Calculus**

Find dy/dx in terms of x and y if (x−a)^9+y^9=a^9. Assume that a is a constant.

**Calculus**

I have no idea why that's not the answer.....

**Calculus**

I already tried 7 for the first two... but the web ways that the answer is incorrect...

**Calculus**

Sorry for posting another quesiton..; f(x) = { -7x^2 + 7x for x<=0 { 3x^2 + 7x for x>0 According to the definition of derivative, to compute f'(0), we need to compute the left-hand limit lim x-> 0− = _____ and the right-hand limit lim x->0+ ______ We ...

**Calculus**

Thanks

**Calculus**

Identify any x-values at which the absolute value function f(x) = 6 |x + 7|, is not continuous: x = _____ not differentiable: x = _____

**Physics**

Blocks of mass 4, 8, and 24 kg are lined up from left to right in that order on a frictionless surface so each block is touching the next one. A rightward-pointing force of magnitude 15 N is applied to the left-most block. a.)What is the magnitude of the force that the middle ...

**english**

passive voice

**Social Studies**

In the Fall of Rome, what were the results of the movement of different Germanic tribes on the trade and political systems of the Roman Empire?

**alegebra**

no because three can not be divided by 2 because its not a factor of three.

**8th grade**

what kind of electron determines if a compound is covalent or ionic?

**Biology**

can you show the diagram if th pedegree of the fipnob family

**Grammar**

Two households, both alike in dignity. what is the prologue's first prepositional phrase?

**english**

is that the sentence or am i suppose to try?

**english**

you can oly use 4 words.

**english**

now i need a sentence that goes in this exact order, adverb, verb, pronoun, adverb.

**English**

i need a sentence with al that

**English**

i need a sentences. one with a pronoun then conjuction, pronoun, helping verb, verb, prep, pronoun.

**algebra**

4 week

**Texas History**

How did Native Americans' way of life at the missions differ from thier traditional way of life?

**Texas History**

Relations were usually peaceful between the Spanish and the French because they reconized a common boundary. Explain the need for a commonly reconized boundary cultures in confict today.

**Texas History**

Why did Spanish missionaries continue their work in East Texas and on the Plains when many people there resented them?

**calculus**

At noon, ship A is 30 nautical miles due west of ship B. Ship A is sailing west at 15 knots and ship B is sailing north at 21 knots. How fast (in knots) is the distance between the ships changing at 3 PM? (Note: 1 knot is a speed of 1 nautical mile per hour.)

**chemistry**

why do you think the statue of liberty was made of copper instead of zinc

**homework**

Tell me the answers

**Us History**

The Lousiana Purchase removed a major point of contention between the United States and a European power but left many others. Which areas of possible conflict remained, and what were the sources of these potential conflicts?

**Us History**

What decisions by the leaders of both the American and British military forces proved crucial to the American victory in the Revolution? Why were these decisions so important?

**Us History**

How did the action of Daniel Shays and his followers relate to the economic problem of the Confederation period?What was the significance of the movement he led?

**Us History**

Why did the British decide to launch a campaign against the southern colonies in 1778?What advantages and disvantages did each side have in this region?

**Us History**

Why were the early settlements in the Caribbean considered more important than those on the mainland of North America?

**US History**

What innovations allowed the Europeans to sustain much greater population densities on the land? How did European farming practices change the landscape of the Chesapeake and New England?

**US History**

How did the Native Americans respond to the expansion of English settlement in each area?

**American History**

How did the colonial view of the nature of the British Empire differ from the view by George III and his supporters?

**American History**

Why was the Tea Act seen by many Americans as a threat to themselves and their institutions?

**American History**

What was the "political outlook" that gained a following in America and ultimately served to justify revolt?

**american history**

How did the colonial view of the nature of the British Empire differ from the view by George III and his supporters?

**math-algebra**

the answer is B. when you multiply you get (225/6840) simplifing this and you will get 5/152.

**algebra**

((3)/(x+3)/((x)/(x-2)

**math**

45