Wednesday
July 30, 2014

Posts by Maria


Total # Posts: 1,494

math
Each year a growing tree adds a new ring to its section some years the ring is thicker than others why do you suppose this happens? Suppose the average thickness of growth rings in the Flintstones national forest is 0.5cm about how old is old Fred a famous tree in the forest i...

math
What's the circumference of a bicycle wheel with a 27 inch diameter?

Algebra
B. y=-2x+3 because: 2x+4y+2=3y+5 2x+4y-3y+2=3y-3y +5 2x-2x+ y+2=-2x+5 y+2-2=-2x+5-2 y=-2x+3

algebra 1
-5x-10=2-(x+4)=>5x-10=2-1(x+4) -5x-10=2-x-4 -5x+x-10=2-x+x-4 -4x-10=2-4 -4x-10+10=2-4+10 -4x=8 =>x=?

algebra
(-x-1)(-4x^2-2x+2) = 4x^3+2x^2-2x+4x^2+2x-2 =4x^3+6x^2-2

chemistry
water has a density of 1g/cm3 ; if 2 different pieces of the wood are put into water which will float and which will sink ? Wood 'a' has a density of 1.19g cm3 Wood "b" has a density of .67 g/cm3 Explain your answer?

social studies
how long does it take from Taipei, Taiwan to Miami,FL?? This is not a homework! i just wanna know it by myself cus my friend is going to visit me dis summer. i can't get the info from google or yah

business and finance
Ray Long wants to retire in Arizona when he is 70 years of age. Ray is now 50. He believes he will need $130,000 to retire comfortably. To date, Ray has set aside no retirement money. Assume Ray gets 14% interest compounded semiannually. How much must Ray invest today to meet ...

business and finance
Mobilee Oil Company accepted a $10,000, 120-day note, dated March 3, at 8.5% to settle a past due accounts receivable. Mobilee Oil discounted the note to raise cash on May 10 at a discounted rate of 9%. What proceeds did Mobilee Oil receive?

business and finance
Mel’s Furniture received an invoice dated September 27 for five bedroom sets at $3,000 each. The invoice indicated a trade discount of 5/8/3. The seller of the furniture prepaid the freight of $200. Terms were 2/10 EOM. Assuming Mel pays on November 2, what amount would b...

business and finance
Peter Mabel sold a total of 400 Oatmeal ($1.50) and Wheat ($2) breads during the Labor Day weekend. How many of each did Pete sell if total sales were $700?

business and finance
Earl Miller plans to buy a boat for $19,500 with an interest charge of $2,500. Earl figures he can afford a monthly payment of $650. If Earl has to pay 36 equal monthly payments, by how much can he afford the boat per month?

business and finance
The property of Al’s garage is worth $300,000. Al has a fire insurance policy of $180,000 that contains an 80% coinsurance clause. What will the insurance company pay on a fire that causes $210,000 damage? If Al met the coinsurance requirement, how much would the insuranc...

business and finance
Use this information to calculate the following: Sales returns $ 700 Rent expense 1,288 Sales discounts 950 Depreciation expense 600 Cost of merchandise sold 7,600 Gross sales 20,900 Advertising expense 1,650 Salary expense 2,900 Heat expense 900 A. Net sales B. Gross profit C...

history
Please help me with my essay titled energy crisis: then and today...thanks

readings in world civilization
Kindly please check my answers. Thanks 1. As expressed in your readings, which of these statements best expresses the crucial paradox of the twentieth century? A. Human life is disregarded as nations seek global security. B. War in the name of liberty leads to tyranny. C. Huma...

SCIENCE
DO YOU THINK ENOGH STEPS HAVE BEEN TAKEN TO REDUCE ERRORS IN MEDICAL ABBREVIATION USAGE?

algebra
write in algebraic expressions: a number x increased by three times y

math
If I bought a jacket for $280.00 and it was 70% off how much would the jacket be?

statistics
The authors state that the heights of women in North America are normally distibuted with a mean of 65.0 and a standard deviation of 3.5 inches. I am 64.5 inches. Using the parameters above, what percent of women in North America are shorter than I am?

pre cal
7tan^2(pheta)-2=3

offices finances
A. Incorrect because, why would you need an officer sign something they have no concern over. B. Incorrect because, why would you pay money for a lawyer to sign a document. Hint: Collection reminders should be typed as if individually composed for that client. They’re nev...

Science
1. What are some of the evidence that led Wegener to propose his theory, why it met with hostility and why the theory was revived in the 1950’s?

College Chemistry
It worked! Thank you so much :)

College Chemistry
What are the concentrations of Pb2+ and Cu2+ when the cell potential falls to 0.370 V? Given: A voltaic cell consists of a Pb/Pb2+ half-cell and a Cu/Cu2+ half-cell at 25degrees C . The initial concentrations of Pb2+ and Cu2+ are 5.30×10−2 M and 1.60 M, respectivel...

history of modern china
was the expectation of chinese rulers during the taiping rebellion unrealistic?

Science
can anyone please give me an example of a numbered key (classification) for these organisms about their structural features? squirrel,turtle, emu, goldfish and mouse. i need to make three but i need one example... thank you

Physics
Never mind, I figured this out.

Physics
A solid ball and a hollow ball, each with a mass of 2 kg and radius of 0.1 m, start from rest and roll down a ramp of length 3 m at an incline of 44°. An ice cube of the same mass slides without friction down the same ramp. What is the speed of the ice cube at the bottom o...

Physics
Thank you!

Physics
A 23-kg boy stands 3 m from the center of a frictionless playground merry-go-round, which has a moment of inertia of 180 kg m2. The boy begins to run in a circular path with a speed of 0.6 m/s relative to the ground. (a) Calculate the angular velocity of the merry-go-round in ...

Grammar
Thank you PsyDAG!

Grammar
What is the prefix, root and suffix of the word "subscribe"? My Answer: prefix - sub root - scrib suffix - e Can the suffix be a single letter? What about the word "misused"? Please help!? Am I right?

Please Answer: Geography
Describe the geography of Southern South America and how this geography influences economic activity? My Answer: Southern South America consists of 3 nations, Paraguay, Uruguay and Argentina. The Rio de la Plata is great river system that consists of 4 rivers that are also the...

geometry
The vertices of pentagon LMPQR are at L(4, -2), M(5, -2), P(8, -5), Q(6, -7), R(2, -4). The coordinates of the pentagon after two translations are L'(-5, -1), M'(-4, -1), P'(-1, -4), Q'(-3, -6), R'(-7, -3). How was LMPQR translated to create L'M'P&...

geography
Taken as a whole, what would you say is the single most pressing problem found in Latin America or South America? What possible solutions can you develop? My Answer: In my opinion, the most pressing problem would have to be the management of poverty. South America is a huge co...

Geometry Math
If point M is the center of a sphere with the coordinates (-1,3,2) and point T is a point on the surface of the sphere with the coordinates (0,5,1), what is the radius of the sphere?

Geometry Math
Lines y= 2x/3+3&y=5 cut the ring formed by circles (x-3)2+(y-5)2=64 and (x-3)2+(y-5)2=25 into four parts. Find the area of each of the four parts.

Math
Find both the circumference area of the circle whose equation is (x-2)2+(y-3)2=64.

maths
4 3 - =8 2

maths
sorry the question was, show clearly that, 4 3 -- =8 2

maths
show clearly that 4 3 ---=8 2 solve the equation 5x2+14x-24=0

Math
x + (x + 17) = 45

math
María plans to enclose a rectangular area of her yard using the 16-foot side of her storage shed as one side of the enclosure, as shown above. If she uses 64 feet of fencing to complete the enclosure, what will be the length, x, of the enclosure?

I need correct answers for all please !
sorry, I worked hard to get the answers, you need to know this stuff though, try to answer and I will correct it for u

Alg 2`
what is the most simplified version of this? (x^2/x^2+2x+1)/(3x/x^2-1)

Geometry
Find the arc length, of a 130 degree arc, in a circle with a diameter of 7.2 inches. Round your answer to the nearest thousandth

Geometry
A 60 degree arc, of circle A, has exactly the same lenght as a 45 degree arc, of circle B. Find the ratio of the radius of circle A to the radius of circle B

Geometry
A circle is divided into three unequal sectors. One of the sectors has (x+40) degrees, the second sector has (2x+60) degrees, while the third sector has (3x+20) degrees. What is the value for x?

math
A laser pulse takes 2.56 seconds to travel from Earth to the Moon and return. Use this to calculate how far away the Moon is.

composition(paraphrase this paragraph)
self-service procurement. self service business intelligence. self-service recovery. user provisioning in private clouds. it's a wondrous world for end users today as IT departments roll out tools that hand them the reins to the data and services they desire, whether it...

English
Idon't konw

Algebra
x^1/2 * y^1/6 *z^1/5. We are to use rational exponents to write an expression. The sqrt of x - the sqrt of y, over the sqrt of x + the sqrt of y. I need to simplify and use radicals as needed. I obviously do but what...?? Please assist. Thank you.

chemistry
If 10L of CO2 at STP and 50g sodium chloride react with excess ammonia and water, what is the limiting reactant and the mass of baking soda produced?

math
how do you find the area under a curve

vance high school
how i can used division of labor in a sentences?

vance high school
how i can used specialization in a sentences?

Chemistry
Determine the volume of nitrogen gas at a pressure of 3.00 atm if it had a volume of 400.0 mL at STP.

Chemistry
A gas is collected over water at 30.0 degrees celsius. It's pressure is 752.5 mm Hg. What is the pressure of the dry gas? Water vapor pressure at twenty degrees Celsius is 27.5 mm Hg.

Chemistry
A gas is collected over water at 30.0 degrees celsius. It's pressure is 752.5 mm Hg. What is the pressure of the dry gas? Water vapor pressure at twenty degrees Celsius is 27.5 mm Hg.

math
A pair of dice is rolled, and a number that appears uppermost on each die is observed, Refer to this experiment and find the probability of the given event. (Enter your answer as a fraction)The sume of the numbers ia an add number.

Math
2^x+1=1/16 find x

chemistry
what mass of ethanol(C2H5OH) will be required to prepare a 2.00m solution in 8.00kg of water?

Mathematics
thank you very much. in the 40 day.

Mathematics
Kate has a tennis lesson every 5 days. She has a basketball game every 8 days. If she has both a tennis lesson and a basketball game today, on what day will she have both again?

Geometery
A cylindrical water tank near Lisa's school is 18 meter high and has a circumference or 33 meter. The given formula can be used to determine the (v) of a cylinder?

physics
45

physics
A child loses his balloon, which rises slowly into the sky. a) If the balloon is 21.5 cm in diameter when the child loses it, what is its diameter at an altitude of 1150 m? Assume that the balloon is very flexible and so surface tension can be neglected. b) And what is the dia...

physics
Donald Duck and his nephews manage to sink Uncle Scrooge's yacht (m = 3527 kg), which is made of steel (ρ = 7850 kg/m^3). In typical comic-book fashion, they decide to raise the yacht (which is now on the bottom of a lake) by filling it with ping-pong balls. A ping-po...

physics
A large water tank has an inlet pipe and an outlet pipe. The inlet pipe has a diameter of 2.19 cm and is 1.25 m above the bottom of the tank. The outlet pipe has a diameter of 5.93 cm and is 4.85 m above the bottom of the tank. A volume of 0.411 m^3 of water enters the tank ev...

physics
A supertanker filled with oil has a total mass of 14.1·10^8 kg. If the dimensions of the ship are those of a rectangular box 271 m long, 93.1 m wide, and 93.1 m high, determine how far the bottom of the ship is below sea level (ρsea = 1020 kg/m^3).

Pre-Calculus
Find all solutions to the equation in the interval [0, 2pi) cos4x-cos2x=0 So,this is what i've done so far: cos4x-cos2x=0 cos2(2x)-cos2x (2cos^2(2x)-1)-(2cos^2(x)-1) No idea what to do next.

chemistry
a pitcher baseball moves at 44 M/s . It has 150 J of kinetic energy on its way to the catcher. What is the baseball 's mass?

donwoody
A football field forms a rectangle. 120yd long 53yd find the perimeter

childhood education
Children readiness to engage in make believe play and the social experiences that promote it

Algebra 1
My little sister needs help on her homework and I don't remember really how to do this. I can't tell her if the answers or if she is doing them is the correct way. So if you could please tell me the answer and how you got it that would be great! -----------------------...

english
I need help on writing a thesis statement for my informative essay for ENC 1101. I decided to write about adoption and I want to write what the advantages and disadvantages of adoption are. I'm very undecisive on how I should write it. Please help.

physics
A small object with mass 4.05 kg moves counterclockwise with constant speed 1.70 rad/s in a circle of radius 3.15 m centered at the origin. It starts at the point with position vector 3.15 m. Then it undergoes an angular displacement of 9.10 rad. (a) What is its new position v...

business math
ms. sue, is it $ 1,754.96? Thanks

calculus
a)find the first partial derivatives of f(x y)= x √1+y^2 b)find the first partial derivatives of f(x,y)= e^x ln y at the point (0,e)

calculus
find the domain of the function f (x,y) = e^-xy

C
you are right the question is exactly like this... can you help me for this question.... thanks Write a MAIN function and a FUNCTION to compute the sum of the below series. ((-1)^(n+1)*n!)/(n^n) (from n=1 to infinity) Within the MAIN function: . Read a variable EPSILON of type...

Math
Janet has a circular garden in her front yard with a diameter of 8 feet. How does the diameter d compare to the circumference C of the garden? F) D = 1/3C G) D = 1/2C H) D = 2C I) D = 3C

Math
Sorry, The length is 7 7/8 in., and width is 5 3/4in.

Geometry
Area of trapezoid is 80 square units, height is 8 units. What is the lenght of median ?

life orientation
By quet at the job and find another job tha is gud for him by telling athers

writing paper
I need to add a cover page to my writing assinment. I can not find any information on what I include in the cover page. This is for Penn Foster College.

algebra
(3x3-4x2 -x+6) Divide By (x-2) its 9three x cubed negative 4 xsquare -x+6) divide by (x-2)

WORLD HISTORY
My teacher ask us to draw a picture that represents a command economy what can I draw??

counseling
its with boundaries of children that have autism

counseling
when writing a paper on boundaries with children that have special needs what all would you write about? so far I have responsibility thanks

Math
what do you think about math

math
explain how the digit 1 can have diffrent values in 111

math
Tania is in charge of designing a school pennant for spirit week. She wants the base to be 3 1/2 feet and the height to be 6 1/2 feet. She has 20 square feet of paper available. Does she have enough paper? Explain.

Chemistry
how do you get the rate?

math
i have 30 coins made up of 5c and 20c pieces that total $3.45. how many of each do i have?????

Physics
Going at an angular velocity of 5.2 rad/sec, how far in kilometers will a car have traveled in 10 minutes? Do I just convert minutes to seconds and multiply or...?

Physics
A wheel 1 meter in diameter is rotating at 100 revolutions per minute without slipping along a level stretch of road and passes mile marker 0 at 12:00 noon. it continues past mile marker 0 for 10 minutes and then has a period of angular acceleration of 2.5x10^-2 radians per se...

Science
thanks

Science
Oceans receive freshwater from precipitation and rivers. Yet ocean level do not change very much from these actions. Why are ocean level not greatly affected? a) Water is constantly seeping underground in the ocean; B)Water is constantly evaporating over the ocean's surfac...

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