# Posts by xavier

Total # Posts: 178

Algebra
How many solutions as a system of equations have? 2X= -10y + 6 & x+5y=3

maTH

Calculus
Two horizontal forces,  and , are acting on a box, but only  is shown in the drawing.  can point either to the right or to the left. The box moves only along the x axis. There is no friction between the box and the surface. Suppose that  ...

Trigonometry
Determine the angular velocity if 2.5 revolutions are completed in 10 seconds. Round to the nearest tenth.

Trigonometry
Write an equation of sin with amplitude = 2, period = 2pi, and vertical shift = 5

Trigonometry
Write an equation of cotangent with period = 3pi, phase shift = -pi, and vertical shift = -1

trigonometry
Write an equation of secant with period = pi, phase shift = -pi/2, and vertical shift = 3

PE
yes

PE
why do you think it is necessary to identify your values when using the decide process to make the important decision

english
why does tasha the narrator in the tail think that her summer is ruined

physics
On a banked race track, the smallest circular path on which cars can move has a radius of 101 m, while the largest has a radius of 163 m, as the drawing illustrates. The height of the outer wall is 19.0 m. Find (a) the smallest and (b) the largest speed at which cars can move ...

Math
I would like to put these fractions in order from least to greatest: 3/8, 5/8, 4/8, 2/8, 7/8

Algebra
A square has an area of 400 square miles. What is the length of each side of the square?

math
Maggie has a box of 300 colored blocks.The box has a equal number of green and blue blocks and an equal number of red and yellow blocks.If Maggie arranged all of the green blocks in stacks of 10 and all of the blue blocks in stacks of 7,how many yellow blocks are in the box?

history
how did farming in the northeast differ from that in the south

Physics
A tangential force acts on the rim of a 2.0 kilogram disk-shaped wheel (0.50 m radius) and gives the wheel an angular acceleration of 4.8 rad/s^2. Neglect friction and find the magnitude of the force.

health
LAN is wrong it is A D B IT IS A 100 % I JUST DID IT DON'T LAN

Art
D I believe.

English
thank you.

English
How does the setting of this memoir affect its plot? What does this question means? memior? affect its plot?

English
It was a night to remember. Marian Anderson was one my favorite singers. Her rendition of the song “Were You There” ran through my head as we walked toward the Metropolitan Opera House. Of course, I listened to the radio when she sang at the Lincoln Memorial in ’...

Physics
A cannon ball is fired horizontally with an initial speed of 75 m/s from the top of a 50-m tall building. When the ball hits the ground, its velocity vector makes an angle θ with the horizontal. What is θ

L.A.Help!!!!!!
So what would 1-4 be? This is my only chance to bring this grade up to its final situation.

Chemistry
Calculate the kinetic energy change in the water that occurs when 10,000lb/hr flow in a pipe that is reduced from a diameter of 2 in. to a diameter to 1 in. Any ideas on solving this? The answer is 2.7 lbf*ft.

Suppose the incident sunlight at ground level has a power density of 0.87 kW m−2 at noon. What is the maximum rate of loss of water from a lake of area 1.0 ha? (1 ha = 104 m2.) Assume that all the radiant energy is absorbed. any ideas on how do i get through with this?

Math
Bobby has some marbles.one-third of them are blue.one-half of them are red and the rest are green.if he has 7 green marbles, how many marbles does have altogether?

material balance
Wet air containing 4.0 mole% water vapor is passed through a column of calcium chloride pellets. The pellets adsorb 97.0% of the water and none of the other constituents of the air. The column packing was initially dry and had a mass of 3.40kg. Following 5.0 hours of operation...

deez nutz

Plz help me.
1.) D 2.) D 3.) B 4.) A

Calculus II
Solve the initial value problem using Taylor Series and the following conditions: y'(t) = y(t) + 2t y(0) = A

Math
This is how I would intuitively do this one: 445-15=430 430/21.50=20 There were twenty people at the party. The 15 is there even if nobody came to the party, so you have to include that.

media
I realize that this may sound like a unique question, but please humor me anyway. Is there a place where people can efficiently watch relatively recent movies in their entirety for free? Or is that illegal?

Math
If you are explicitly told to use one method, then of course do that. Otherwise, just indicate what method you are intending to use, and then do it. You should know how to do all of the methods anyway. However, some of them are not as convenient as others. If you do not have ...

Math
Have you already found these answers or are these what the answers are supposed to be? If you provide a little more context, then I am sure someone will be happy to help you.

Economics

ss. home work
No problem Kendall! -Anytime-

ss. home work
I agree with Kendall.Because of that..What do you mean Where and When? Its a freaking question for god sake..Answer it and don't question the question.

Density Problem
The moon has radius 1740 km and mass 7.35x10^22? kg.What is its average density?

Math
well.. i got that too.. but i don't know how to find the longer diagonal with this given sides

Math
the distance between the center of symmetry of a parallelogram and its longer side is equal to 12 cm. The area of the parallelogram is 720 cm^2, and its perimeter is 140 cm. Determine the length of the longer diagonal of the parallelogram

Math
Cant it be explaind another way I really don't understend

Physics
A 0.02kg bullet collides with a 5.75kg pendulum. After the collision, the pair swings up to a maximum height of 0.386m. Determine the velocity of the bullet just before impact.

Physics
A 0.02kg bullet collides with a 5.75kg pendulum. After the collision, the pair swings up to a maximum height of 0.386m. Determine the velocity of the bullet just before impact.

ALGEBRA
HOW DO I SOLVE THIS PLEASE 5ãx =ãx -12

algebra
How do I solve this problem  ã2x -7+8=11

Math, Related Rates
Consider the hyperbola y = 1/x and think of it as a slide. A particle slides along the hyperbola so that its x-coordinate is increasing at a rate of f(x) units/sec. If its y-coordinate is decreasing at a constant rate of 1 unit/sec, what is f(x)? -I arrived at the answer f(x...

math
The Flour Power Bakery makes 200 cherry cheesecakes at a cost of \$2.45 each. If a spoilage rate of 5% is anticipated, at what price should the cakes be sold to achieve a 40% markup based on cost?

Physics Normal force
When an object exerts a normal force on a surface, the force is My answer is perpendicular to the surface. Am i correct?

Chemistry
What mass of KIO3 is needed to convert the copper in 0.200g of CuSO4.H2O to Cu(IO3)2? my answer is: 0.828g Cu(IO3)2 x (2*214.003 MolarM KIO3/ 413.36 MolarM Cu(IO3) = 0.857g KIO3 could you please check if i got it right

Chemistry
What mass of AgI can be produced from a 0.512g sample that assays 20.1% ALI3?

Physics
Suppose this dude wants to be able to touch the rim of a basketball goal. The rim is 3.048 m above the ground. The dude can reach up 2.45 m with his feet on the ground. (a) If the dude can achieve a liftoff speed of 2.80 m/s, what is his maximum upward displacement?

Chemistry help
Average human blood serum contains 18 mg of K+ Calculate: a) the molar concentration for each of these species; use 1.00 g/mL for the density of serum. I have worked as of this (18 mg K+/100 mL)(1mL/1g)(1 mmol/39.10mg)(1g/1000mg). But it seems that some units are not cancelled...

In the experiment of buret calibration, what is the importance of having total buret correction? And does the density of the water at a specific temperature affect this corrections?

Mathematics
If a man and a half finishes a job and a half within a day and a half, how many men can finish 3 jobs within 3 days. Please I need help, I am not so sure with my answer of 6. I would like to verify it. THANKS

Math Algebra II
I am confuse how to solve a relation function such as f(x) = 1x -12. show me example on how resolve this problem

Chemistry
Sea water contains an average of 270 ppm of sulfate ion. Calculate the molar concentration of sulfate given that the average density of sea water is 1.02 g/ml. -At first i tried assuming that density is 1.00 g/ml which is a common practice in ppm problems but the answer is ...

chemistry
how many milliliter of .750M sulfuric acid are needed to neutralize completely 20 g of NaOH?

MATH
A tin is a right circular cylinder with a diameter of 6 meters and a height of 10 meters. What is the surface area of this tin, in terms of pi?

algebra
Michael is helping with the school play by measuring fabric for the costumes he needs 48 feet of fabric he has 12.5 yards of fabric how many more yards of fabric does he need

MATH
Posted by xavier on Monday, February 11, 2013 at 8:28pm. Hello... Asking for help with this one math question to understand how to do the rest of related question? thank you in advance.... shape 1 (3.5,-8.5) ,(3.5,-9) , (3,-10.5) , (2,-12)

math

math
and for each shape plot the ordered pairs on the axis and connect them in order

math
shape 1 (3.5,-8.5) ,(3.5,-9) , (3,-10.5) , (2,-12)

Analytic Geometry
Find the equation of the parabola through (-15/4 ,2) and (0,-1) whose axis is parallel to the x-axis and the latus rectum equal to 4

Analytic Geometry
What is the equation of the circle touching the lines x-3y-11=0 and 3x-y-9=0 having its center on the line x+2y+19=0

Analytic Geometry
What is the equation of the circle touching the lines x-3y-11=0 and 3x-y-9=0 having its center on the line x+2y+19=0

Analytic Geometry
Find the equation of the circle, with radius 1, tangent to the line 3x+4y=5 and having its center on the line x+2y=0

Analytic Geometry
thank you very much!

Analytic Geometry
Find the equation of a circle passing through (3,7) and tangent to the lines x-3y+8=0 and y=3x. Please help me

Analytic Geometry
Find the equation of a circle passing through (3,7) and tangent to the line x-3y+8=0

Chemistry
Please help, do you have any pointers on how to use linear regression in determining the reaction order

Analytic geometry

geometry
A moving point is always equidistant from (-3,2) and the line 2x-y+2=0. What is the equation of its locus? how do you solve this?

geometry
Find the equation of a line parallel to 5x +6y = 0 at distance sqrt 61 from (-3,7) I need help please. I don't have any idea

social studies
deez nutz

Algebra
The first element of a geometric sequence is 1 and the common ratio is 3; determine the smallest 4 digit numeral that represents an element of this geometric sequence

geometry
find the equation of the line through (6, -3) and (-4, -7)

Analytic Geometry
Please help me to solve this problem. Find the equation of the locus of a moving point if the sum of the slopes of the line joining it to (1,3) and (4,-2) is 1.

Chemistry
The ΔHof of gaseous dimethyl ether (CH3OCH3) is –185.4 kJ/mol; the vapour pressure is 1.00 atm at –23.7oC and 0.526 atm at –37.8oC. a) Calculate ΔHovap of dimethyl ether. b) Calculate ΔHof of liquid dimethyl ether Any idead how to calculate for ...

Chemistry HELP
A 0.75–L bottle is cleaned, dried, and closed in a room where the air is 22oC and 44% relative humidity (that is, the water vapour in the air is 0.44 of the equilibrium vapour pressure at 22oC). The bottle is brought outside and stored at 0.0oC. just this question cause i...

Chemistry
A 0.75 L bottle is cleaned, dried, and closed in a room where the air is 22°C and 47% relative humidity (that is, the water vapor in the air is 0.47 of the equilibrium vapor pressure at 22°C). The bottle is brought outside and stored at 0.0°C. My question is what ...

Chemistry
I need help with this problem A 0.75–L bottle is cleaned, dried, and closed in a room where the air is 22oC and 44% relative humidity (that is, the water vapour in the air is 0.44 of the equilibrium vapour pressure at 22oC). The bottle is brought outside and stored at 0....

Chemistry
At a local convenience store, you purchase a cup of coffee, but, at 98.4oC, it is too hot to drink. You add 23.0 g of ice that is –2.2oC to 248 mL of the coffee. What is the final temperature of the coffee? (Assume the heat capacity and density of the coffee are the same ...

Chemistry
A 0.75–L bottle is cleaned, dried, and closed in a room where the air is 22oC and 44% relative humidity (that is, the water vapour in the air is 0.44 of the equilibrium vapour pressure at 22oC). The bottle is brought outside and stored at 0.0oC. a) What mass of liquid ...

Chemistry
Methyl salicylate, C8H8O3, the odorous constituent of oil of wintergreen, has a vapour pressure of 1.00 torr at 54.3oC and 10.0 torr at 95.3oC. a) What is its vapour pressure at 25oC? b) What is the minimum number of liters of air that must pass over a sample of the compound ...

maty
thank you

Math Help!
Kayla buys a \$20 phone card. She is charged \$0.15 per minute for long distanced calls. What equation gives the value (v) left on her card after she makes (t) minutes of long distance calls.

SOCIAL STUDIES
deez nutz

intra + wall painting = inter +able to be altered= intra+declare= inter+act as agent between two parties in conflict the ones i don't know the others i knew

hello im diong meaning match for an example inter + scene = interview counter + segment of a whole = ???

social studies
GIFT OF THE NILE 1. What would be the main mineral resource in lower Egypt?

Math
Auppose f is even but g is an arbitrary function (possibly neither even nor odd). (a) Is f o g still even? Show why or why not. (b) Is g o f even? Show why or why not.

math
13.33

English
La fête nationale Française c'est plus précisément le 14 juillet .

french
Salut , Tu veux apprendre le français ? , c'est une bonne initiative. J'essaye d'apprendre l'anglais moi aussi. Je comprends la langue, mais j'ai du mal parler anglais.Google traduction est mon ami :) à bientôt ! hello, Want to learn ...

Religion
Hello I am trying to find a site that will play audio reading of the bible. Book of Roman in its entirety? Is this possible?

french
I am French, so you can put your sentence here, than i will correct it :) (I try to learn English too. i will be grateful if you correct me ). see you soon

MATH 6TH
THANK YOU MS. SUE HOW ABOUT #3 - PATTERNS DIVIDED WITH DECIMALS TENTHS, HUNDRETHS....

MATH 6th
thank you Ms. Sue what about the PATTERNS #3

MATH 6th
1. Is there a website that can show me how to divide decimals by10-1000? 2. Divide decimals by whole numbers? 3. Patterns with tenths, hundredths and thousandths? PLEASE HELPL ME - THANK YOU IN ADVANCE. JUST SOME SAMLES OF ALL THE ABOVE

1. Pages:
2. 1
3. 2
4. Next>>

Post a New Question