Sunday
April 20, 2014

Posts by Ana


Total # Posts: 902

Algebra2
Find the center and radius of the given circle. 1. x^2 + y^2 + 10y + 21 = 0

Algebra 2
Energy Use Light Output 35 2250 50 4000 70 5800 100 9500 150 16000 What is the quadratic model for the light output with respect to use energy use? I dont understand this at all Please help ):

Physics
Examine the table below as the spearation distance is doubled ow much does the electrostatic forces decrease? 1 20.0 Cm 0.1280N 2 40.0 cm 0.0320N 3 60.0 Cm 0.0142N 4 80.0 CM 0.0080N 5 100.0 CM 0.0051

math
Mrs. Brock's class has 23 students. Each student has 8 markers. Which describes how to find the total number of markers in the class? a) Multiply the ones. Record; b) Multiply the tens. Record; c) Multiply the tens. Record. Multiply the ones. Record. Add the partial produc...

math
Mrs. Brock's class has 23 students. Each student has 8 markers. Which describes how to find the total number of markers in the class? a) Multiply the ones. Record; b) Multiply the tens. Record; c) Multiply the tens. Record. Multiply the ones. Record. Add the partial produc...

Writing
I am doing a journal review paper for Psychology. What are the implications of this work (i.e. what light does it shed on the particular topic related to psychology)? I do not understand the question. What is it asking me to do? Can someone explain the question so I am can und...

Psychology
I am doing a journal review paper. What are the implications of this work (i.e. what light does it shed on the particular topic related to psychology)? I do not understand the question. What is it asking me to do?

math
Write your answer using only positive exponents. 30u^-15/34u^-16

math
what is a millogram

math
thanks mrs. sue !!! you are the best you are an lifesaver!!! and just to be sure 2 and 7/8

math
Cassandra has a square photo that has lengths of 4 inches. She cuts 5/8 inch off the top and 1/2 inch off the bottom. What is the new height of the photo?

Physics
I got the correct answer for the thrower, but for the catcher to find the second velocity, I follow the formula but it still counts it as wrong. What could I be doing wrong?

geometry
Draw and label the following: segment AB intersects segment CD at point M. M is the midpoint of both segments. If AM = x2 + 8x + 17 and MB = 12x + 14, find AB.

Psychology
What are some examples of self-monitoring techniques? What are some examples of self-managing techniques? NOTE: I just need some ideas.

Psychology
So, just basically talking about myself?

Psychology
What am I suppose write about when I am asked to describe my self-concept? Note: Do NOT just give a link to the definition. I know what it means already.

physics
B. Assume the child is 1.2 meters tall and casts a shadow of 6.4 meters. Determine the angle of the sun at that moment.

math
three pies are cut into sixths .how many pieces will there be

math
how to simplify the following,please step by step 56x^7+21x^4+63x^3

Algebra 1
4x+(-9+3x)=-5

chemistry
Determine the electron geometry, molecular geometry, and idealized bond angles for each of the following molecules. In which cases do you expect deviations from the idealized bond angle?1.pf3 2.sbr2 3.ch3br 4.bcl3

Math
Juan had three pieces of stick. The longest one measured 64 cm and is twice as long as the other two pieces. Find the total length of the sticks.

averages
The answer is 70. First off if we want to know the LEAST possible value for a, then b, c, d, e have to be the MAXIMUM value. In this case it would be e=109, d=108, c=107, and b=106. Now that we have values for all the variables except a, we can solve for a. To solve for a, we ...

math
A person has invested $6000 . Part of the money is invested at 3% and the remaining amout at 4% . The annual income from the two investment is $225.How much is invested at each rate?

Math
What is the answer here? Find the sum of the biggest odd numbers formed by the digits 1 and 2 and the smallest even number formed by the digits 6,7,8

algebra
30% of 59

Physics
If you must stop your moving car in a hurry, should you slam on the brakes and lock them?

Calculus
Solve the equation (3^x)^2-12*3^x+27=0 Simplify and write without negative exponents: 3^2(x^-2y^3)^3/4^1/2*x^-4cuberooty^2

Calculus
Is the entire problem to the fourth power, or just the denominator?

Calculus
Write as a single logarithm of a single quantity ln(3)+1/2ln(x+2)-4ln(1+sqrtx)

chemistry
aluminum has a density of 27g/cm3 if a chunk of aluminum with a mass of 16g is placed in a graduated cylinder partially filled with water how much will the water level rise

spanish
El domingo pasado, yo iba con mis amigos al cine. This says Last sunday, I was with my friends at the movie theater. It would be better if it said El domingo pasado fui al cine con mis amigos. Last Sunday I went to the movie theater with my friends.

Spanish
THE FIRST SENTENCE SAYS I did not speak with anyone in school. THE SECOND SAYS No, I spoke with nobody in the school ............................... I think the first is more correct.

Spanish 8th grde
¿Qué compraste la semana pasada? What did you buy last week? Compré una mochilla la semana pasada. I bought a backpack last week. ¿Bailaron Uds.? Did they dance. Sí, bailamos. Yes, we danced, (this depends on what type of spanish, latin ameri...

5th Grade Writing
its. because it's means it is. The horse hurt it is leg, doesn't make sense.

physics
the magnetic force on a straight 0.15m segment of wire carrying a current of 4.5 A is 1.0 N. What is the magnitude of the component of the magnetic field that is perpendicular to the wire?

math
if you have a large cube with a surface area of 32 and a smaller cube with the surface area of 18 what would the ratio be for the smaller figure to the larger figure a)2:5 b)5:6 c)3:4 d)6:7

math
if you have a large cube with a surface area of 32 and a smaller cube with the surface area of 18 what would the ratio be for the smaller figure to the larger figure a)2:5 b)5:6 c)3:4 d)6:7

math
if you have a large cube with a surface area of 32 and a smaller cube with the surface area of 18 what would the ratio be for the smaller figure to the larger figure a)2:5 b)5:6 c)3:4 d)6:7

logarithmic differentiation
y= 4th root (x^2+1)/(x^2-1)

Math
If two number cubes are tossed, what is the probability of getting a sum that is less than 6, given that 1 number cube shows a 3 ?

math
The vertices of a triangle are listed below. H(-2,4), I(22,4), J(10,-1) Which of the following correctly classifies the triangle? 1.The triangle is an obtuse isosceles triangle. 2.The triangle is a right scalene triangle. 3.The triangle is an obtuse scalene triangle. 4.The tri...

chemistry
what will be the boiling point 54.5 grams of aluminum sulfate dissolved in 805 grams H2O

chemistry
how many grams of sodium phosphate were dissolved in 382 grams of water in a 6.0 m solution

Circuits
In Circuits lab, we had to construct different types of operational amplifiers. The inverting and summing amplifiers produced similar output voltage to the calculated ones but were not negative. I was just wondering why they didn't reverse the sign in the experiment?

Circuits
In Circuits lab, we had to construct different types of operational amplifiers. The inverting and summing amplifiers produced similar output voltage to the calculated ones but were not negative. I was just wondering why they didn't reverse the sign in the experiment?

Chemistry
An aqueous solution contains 0.196 M hydrosulfuric acid and 0.190 M hydrochloric acid. Calculate the sulfide ion concentration in this solution. [S2-] = _________mol/L.

Chemistry
An aqueous solution contains 0.216 M ascorbic acid (H2C6H6O6) and 0.131 M hydrochloric acid. Calculate the ascorbate (C6H6O62-) ion concentration in this solution. [C6H6O62-] =______________ mol/L.

statistics
find the probability p(-1.14 < z < 1.01) using the normal standard distribution

math
your best friend ate 3/8 of a pizza from 4 diffrent pizza.how much pizza did he ate?

Math
for 6z=126, mike wrote that z=756. explain what mikes mistakewas. then tell the correct answer.

physics
true or false . refraction always involves a change in the speed and direction of a wave wat is required in order for diffraction to occur? wat causes wave interference?

math
whats the prime factorization of 62

chemistry
calculate the mass of kool aid required to prepare 200.0 ml of 0.30 M kool aid

Math
89.28

MATH
SUBTRACT 4 4/7 AND 3 2/3

math
Solve for X 0.0421=0.0015-x/0.025+1/2 i'm lost

Science
put one white flower in a vase with 5 cups of water and one white flower in a vase with 5 cups of water with food coloring (red green blue yellow or any color) for one week. make sure you take pictures and write a few sentences on what you noticed (since he's only in kinde...

Physics
A 933 kg block is pushed on the slope of a 20 ◦ frictionless inclined plane to give it an initial speed of 50 cm/s along the slope when the block is 1.5 m from the bottom of the incline. The acceleration of gravity is 9.8 m/s 2 . 1.5 m 933 kg 20 ◦ What is the speed...

chemistry
Your percent

Economics
adam smith supported three different views of theory of value (are the followings correct, i will add them to my essay) 1. Labor cost: he supported that everyone must produce his own goods using own labor and exchange the surplus with other goods. In this model of society no c...

chemistry
How many iron atoms are in 0.32 mol of Fe2O3

trig
If cosecant of theta equals 3 and cosine of theta is less than zero, find sine of theta, cosine of theta, tangent of theta, cotangent of theta and secant of theta

College Algebra
A manufacturer of radios estimates that his daily cost of producing x radios is given by the equation C=350+5x. The equation R=25x represents the revenue in dollars from selling x radios. *Profit function,P(x)=R(x)-C(x),P(x)=20x-350 *How many radios should the manufacturer pro...

physics
A ball rolls off a platform that is 5 meters above the ground. The ball's horizontal velocity as it leaves the platform is 4.8 m/s. (a) How much time does it take for the ball to hit the ground? (Use g = 10 m/s2.) . s

CHEMISTRY
Suppose you dump a 5-lb sack of sugar into Bellingham Bay. Assume the sugar disperses uniformly throughout all of the world’s oceans. Estimate how many molecules of sucrose would be found in each liter of sea water.

chemistry
Suppose you dump a 5-lb sack of sugar into Bellingham Bay. Assume the sugar disperses uniformly throughout all of the world’s oceans. Estimate how many molecules of sucrose would be found in each liter of sea water.

Accounting
Assets = Liabilities + Equity How can you tell which company have the strongest financial position? Is buy the highest in assets, highest in liabilities, or highest in equity? I am confused.

Algebra II
-12+4x/4

Chemistry
If you react 2.0 g AgNO3 and 2.5 g Na2SO4, what is the percent yield if the actual yield is 1.6 g Ag2SO4? 2AgNO3 + Na2SO4 → Ag2SO4 + 2NaNO3

Physics
billy and amy want to ride their bikes from their neighborhood to school which is 14.4 kilometers away. it takes amy 41 minutes to arrive at school. bill arrives 21 minutes after amy. how much faster (in meters/second) is amy's average speed for the entire trip?

geometry
Simplify the following ratio 12XY: 8x

Spanish
Mi Mama es bonita A Mi Me Gusta El Chocolate Yo Fui al parque ayer Mi mama y yo fuimos al parque A Mi me gusta jugar juegos.

math
is 3 times 41 120

geometry
An isosceles trapezoid has bases length 19 and 11 centimeters and length 13 centimeters. What is the area of the trapezoid to the nearest tenth?

Spanish
1.Voy a nadar en la piscina. Necesito(I aam going to swim in the swimming pool. I need) un ttraje de baño(bathing suit). 2.Está lloviendo mucho. Necesito (it is raining a lot. I need..). el impermeable y la sombrilla (a raincoat and umbrella.) 3.No puedo ver bien...

Algebra 2
thanks so much!

Algebra 2
How would you find the x intercepts of 2x^2+17=0. The original equation is 2(x-3)^2-1.

Chemistry 1010
Sorry I thought I was posting a question not an answer to your question!!

Chemistry 1010
What is the mass in grams of one mole of water

physics
a gate 6m wide requires a force of 5.2 kg.wt. applied at the end to open it. what force would have to be applied (A) at the middle and (B) at 1.5m from the hinges, to open it?

Science
yeah baby bring it on!

Science
I love you!

Science
____ are fuels made from renewble resources You have to use ___ to grow plants and extract ethanol 2 alternative biofuels are ___ and ___

Science
Definition for Biofuel,Hydroelectricity,Geothermal,and wind energy

SOCIAL STUDIEs
Eli Whitney revolutionized indusrty in the north and south and impacted the Civil War. What 2 key innovations is he attributed with?

French
Can someone to correct mistakes? Thank you! Le 4 septembre a été volé un vélo. Une fille avait laissé son vélo près d'un bar. Quand elle est sortie du bar elle a vu que son vélo avait été volé et ...

VETERANS DAY
I put What Veterans day means to me is how people risk their lives so we can live our lives the way we want to. To me it's a special time to remember all the people who fought for us. It's a day to honor all our veterans... That's all I put so far

VETERANS DAY
I have to write a papre about Veteran's Day and what it means to me. I have some stuff about it but I need more. Can anyone please help me???

SCIENCE
How does waves deposit?

chemistry
The element strontium has ccp packing with a face-centered cubic unit cell. The volume of the unit cell is 2.25 x 10-25 L. Calculate the density (g/mL) of the element.

chem
When the valve between the 2.00-L bulb, in which the gas pressure is 2.00 atm, and the 3.00-L bulb, in which the gas pressure is 4.50 atm, is opened, what will be the final pressure in the two bulbs? Assume the temperature remains constan

Spanish 8th grade
TRANSLATION OF THE PASSAGE: My family and I like to spend time outdoors. When we have time, we leave the house and go to camp in the mountains or near a lake. It is important to bring the things necessary when going to camp because if you don't have what you need, you can ...

algebra
22x2y14-22x4y13

Physics
A hot air balloon is traveling vertically upward at a constant speed of 3.9 m/s. When it is 20 m above the ground, a package is released from the balloon. After it is released, for how long is the package in the air? The acceleration of gravity is 9.8 m/s

chemistry
could the quantitative precipitation be useful to determine the mass percent of copper in a sample that also contains magnesium ions?

Women in Society
How does the way a society treats and regards its women affect the way outsiders perceive that society? How do you think cinema - and other forms of pop culture and mass media - affect that perception?

algebra
How can you divide 64 into 2 groups to get a ratio of 3 to 5?

algebra
How can you divide 64 into 2 groups ti get a ratio of 3 to 5?

geometry
find the value of each variable 3m+5+4m-10

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