Wednesday
April 23, 2014

Posts by Kathy


Total # Posts: 677

math (Reiny please)
how would i do these problems: 6. xsquared + 2x -7 =0 7. 6xsquared - 2x -1 = 0

science
can you simply explain what happens to ice that breaks off a glacier that lands in the water

physics (Newton's Laws)
Please help, A cat is stuck in a tree. You are designated with the job to get it out, yet you do not want to climb the tree, because you may get stuck as well. Instead you set up a pulley system. A rope (consider it massless) runs from the seat you sit on over an ideal pulley...

physics (Newton's Laws)
One end of a spring is attached firmly to a wall, and a block is attached to the other end. When the spring is fully compressed, it exerts a force F on the block, and when the spring is fully extended, the force it exerts on the block is −F. What is the force of the spri...

physics (Newton's Laws)
If an acrobat who weighs 800 N is clinging to a vertical pole using only his hands, neither moving up nor down, can we determine the coefficient of static friction between his hands and the pole? Explain your answer. Please, help. Thank you

Probability
2/3 people at a spa are there to lose weight. There are 10 people there and I approach one. What is the probability that the person is there to lose weight? The random variables are based on 10 rolls of a dice. 1(1)+ 2(2)+ 3(1)+ 4(2)+ 5(1)+ 6(3) {1=4=3=8=1=18}= 35 Please help ...

math
I have two questions 1.) 2750 grams= lbs 2.)2km= yards and in my book I have a completely different answer. Thank you

Physics (Velocity in two dimensions)
Please explain, A clown in a circus is about to be shot out of a cannon with a muzzle velocity of 15.2 m/s, aimed at 52.7° above the horizontal. How far away should his fellow clowns position a net to ensure that he lands unscathed? The net is at the same height as the mou...

Physics (Velocity in two dimensions)
Please help, The displacement vector for a 15.0 second interval of a jet airplane's flight is (3850, −2430) m. (a) What is the magnitude of the average velocity? (b) At what angle, measured from the positive x axis, did the airplane fly during this time interval? Exp...

Physics (Velocity in two dimensions)
Please help: The displacement vector for a 15.0 second interval of a jet airplane's flight is (3850, −2430) m. (a) What is the magnitude of the average velocity? (b) At what angle, measured from the positive x axis, did the airplane fly during this time interval? Exp...

math
a volume is 864 what is the length width and height if length and width are the same and height is half of width and length

Physics (vectors)
I am stuck with this question.Please help. I have a triangle that is not a right triangle with sides A, B, and C.(no values).The arrow's heads of A and B are joined and the arrow's head of C is in the tail of B. If the resultant is A,what is the vector equation, and wh...

Physics (vectors)
Please help me with this question. I have a triangle that is not a right triangle with sides A, B, and C.(no values).The arrow's heads of A and B are joined and the arrow's head of C is in the tail of B. How do you find the resultant, the vector equation, and the direc...

Physics (vectors)
Please help me with this question about vectors. Thanks. If you are given a graph with a vector starting at the point (1,-1)and the arrow goes to the point (0,-4). What is the vector in rectangular coordinate? I answered (0,-3), but the coordinate for x is wrong and I can'...

Physics (vectors)
Could you please help me with this exercise? Thanks. Adding and substracting vectors Solve for the unknown variables: (a) (a, b) + (3, 0) = (6, 7) (b) (11, c) + (d, 5) = (-12, −3) (c) (5, 5) + (e, 4) = (2, f) (d) (-1, −3) − (5, g) = (h, 2)

Physics (vectors)
Could you please help me with this exercise? Thanks. Adding and substracting vectors Solve for the unknown variables: (a) (a, b) + (3, 0) = (6, 7) (b) (11, c) + (d, 5) = (-12, −3) (c) (5, 5) + (e, 4) = (2, f) (d) (-1, −3) − (5, g) = (h, 2)

Chemistry
Calculate the pH for each of the following cases in the titration of 50.0 mL of 0.200 M HClO(aq) with 0.200 M KOH(aq). The ionization constant for HClO can be found here. A. Before any addition of KOH B. After addition of 25.0 mL of KOH C. After 30.0 mL of KOH D. After 50.0 mL...

algebra
five-sixths of a number is -60. What is the number?

geometry
the diagonals of a rectangle are 8 units long and intersect at a 60 degree angle. find the dimensions of the rectangle

Physics
A watermelon cannon fires a watermelon vertically up into the air at a velocity of +11.5 m/s, starting from an initial position 1.20 meters above the ground. When the watermelon reaches the peak of its flight, what is (a) its velocity, (b) its acceleration, (c) the elapsed tim...

Math
Marty ate 1/4 of a pizza. Rob ate 1/5 of a pizza . How could rob eaten more pizza than Marty?

Physics
Your friend of mass 150 can just barely float in fresh water. Find her volume.

Health
What is the correlation on how society defines health and how they pursue health

Health
How does society define health

LAW
Jana finds a home priced at $180,000 that she would like to buy. She is concerned, however, about her ability to get a loan. Accordingly, she and the seller reach agreement that Jana will buy the home if she can get a loan for $180,000 within 45 days. What type of condition is...

physics..please help me due in a couple of mins.!!
i went to other post on this an it redirected me to this one...if you dont mind i really would appreciate if you re-answer the question

physics..please help me due in a couple of mins.!!
do you have a answer or formula to this bobpursley?

physics..please help me due in a couple of mins.!!
Two identical guitar strings are stretched with the same tension between supports that are not the same distance apart. The fundamental frequency of the higher-pitched string is 400Hz, and the speed of transverse waves in both wires is 200 m/s. How much longer is the lower-pit...

Buisness Law
In Reno v. Condon, Attorney General of South Carolina, the case in the book addressing whether Congress could prohibit states from selling personal information of citizens without consent, the U.S. Supreme Court ruled that: a. The Driver’s Privacy Protection Act was a pro...

Economics
The marginal revenue product (MRP) of land declines as more land is brought into production because: A.land is a "free and nonreproducible gift of nature." B.of diminishing returns. C.land rent has no incentive function. D.the supply of land is fixed.

Simmons
How is guilt a powerful force in human life

Simmons
How is guilt a powerful force in human life

algerbra
what is the right way to set up a formula in finances for a simple interest word problem: P=6853 down pymt=853 monthly pymt = 163.00 per month for 48 months.

College Math
answer is b

physics
A 50 kg diver leaps off the 20 meter diving board with a velocity of 5 m/s. What is his kinetic energy just before hitting the water?

algebra
A grandmother is looking for a plan to finance her new grandchild’s college education. She has $25,000 to invest. Search the internet and locate a long-range investment plan, CD, Savings Bond, etc, for the grandmother. The plan is to earn compound interest. Calculate the ...

algebra
if x% of y = 15 then y% of x = what?

Calculus
Sketch the region enclosed by the given curves. Decide whether to integrate with respect to x or y. Then find the area of the region. 2y=3(x^(1/2)) , y=5 and 2y+3x=6

physics
standing on the ground, you throw a 0.55 kg lunch bag at a friend, you manage to throw the bag straight up (vertically) using 50 J of energy to throw it there is also a crosswind of 0.5 m/s. How high will the bag travel before all of its kinetic energy is converted into gravit...

Math
1.describe the meaning of the number -.1 in the formula, in terms of its meaning in relation to the profit.

physics
If the height of the water slide in the figure is h = 2.8 m and the person's initial speed at point A is 0.47 m/s, what is the new horizontal distance L between the base of the slide and the splashdown point of the person?

math/algebra
How do I find the quotient of 5/22 & 6/11?

plaiance
what is an algebric expression for 5 less than 34

math
50000

Math riddles for 4th grade
divide me by 10 and 3 remians. a square number my first digit be. My second digit is the product of1 and 3. All together I am greater than 50.

physical science
If a 2 kg block has a gravitional potential energy of 58.5 J, how high is it above the floor?

math/science
If a bee flies 6km/h how long will it take to reach a flower that is 1.2 km from the hive?

chemistry
the distance between new york and san francisco is 4741000m. Now that may sound impressive but to put all those digits on a car odometer is slightly inconvenient. in this case kilometers are a better choice for measuring distance. change the distance to kilometers

Phyichs
please help me

Phyichs
WHAT IS THE DIRECTION OF A NULL VECTOR ?

english
oh okay. for my anglish project were going over the "animal farm" book. and we have to create a one verse anthem. "Come up with an anthem (at least one verse) and a tune that it can be sung to." - his words

english
can someone please help me on making an anthem for a farm? thank you!

Physics
A person throws a rock straight up into the air. At the moment it leaves the person's hand it is going 76 mph. When the rock reaches its peak, how fast is it going and what is the magnitude and direction of its acceleration? Ignore air drag.

Math
What is the area of a parallelogram with side- 6cm, 6cm, 9cm, 9cm?

7th Grade Math
In an addition problem the answer should have the same number of significant figures as the measurement with the mot decimal places. True or False? I say True.

7th Grade Science
Oh, Thank You Lisa.

7th Grade Science
What can be inferred after performing the experiments in the atomic theory lab? A) Where matter comes from B) How salt is formed C) If salt can dissolve in water D) If matter is created or destroyed Is it D?

Accounting
Q1a: Complete Problem 14.1 on page 269 of the Collier text (solution is on page 501-502). Next work the problem again using the following variables: project yield annual net cash inflows are $10,500 for the next five years; interest rate of 16.5%, and the initial investment of...

management decision making
Analyze and compare both data sets using the data analysis and biases concepts from Chapter 11 of Sekaran & Bougie (2010). Compare only those categories that you find are significant to your analysis in demonstrating whether the US demographics based promotions can or cannot b...

statistics
The National Center for Education surveyed 4400 college graduates about the lengths of time required to earn their bachelor's degrees. The sample mean is 5.15 years, and assume that standard deviation is known to be 1.68 years. Based on the sample data, construct the 99% c...

Math
i have the answers, but does not have the answers for the set of problems I was working on. That was one of my questions I was not completly sure of. I copied the problem word for word from the text. I did as much calculations as I knew how...it was then trying to figure out h...

Math
Based on the information given for each of the following studies, decide whether to reject the null hypothesis. For each, give (a) the Z-score cutoff (or cutoffs) on the comparison distribution at which the null hypothesis should be rejected, (b) the Z score on the comparison ...

College algebra
If the domain and range of a function consists of real numbers, then you can graph it by plotting all ordered pairs (x, f(x)). Remember "y" = f(x). How can you tell by looking at a graph if it represents a function?

Anthropology 101
Hi Sue This for question 10 Modernization Theory Why are some people and countries poor, and how can they achieve development similar to that experienced in the Western world? Modernization theory is informed by both classical sociology and economics. It stems from Charles Dar...

Anthropology 101
I have and the I just want know if it is correct. 1. The American class system: (Points : 1) is a closed system. is an open system.X is mostly endogamous. is an illusion, because there are no classes. 2. A dowry is: (Points : 1) when, upon marriage, the bride works for the gro...

spanish
Could we walk Monday or Tuesday instead?

algebra1
factor: 4x^8-24x^7+12x^6

California History
Thank you so much this helped a lot! Especially the first and second link(:

California History
What's a good website that i can read about the Chinese immigrant labor during the railroad era? & whats one way i can start the first sentence on a one page report? Thank You

algebra1
solve: y-3/y-7 - y+1/y+7 + y-63/y2-49

Social studies
Yes exactly, thank you so much

Social studies
Question: why do you think the united states is attractive to foreign investors? My Answer: anytime political upheaval strikes in an another part of the world, foreign investment in the United States increases because we remain a politically stable country. If you have anythin...

Social Studies
Throughout the work many fear that the United States culture has taken over everyone else's culture. Some people have called this economic imperialism. Do you think I could add that to my answer? Is it what you ment about hurting Americans.

Social Studies
Question: Why do some people object to foreign ownership of the us business and real estate? My Answer: Many people argue against foreign ownership because they worry about foreign control.

algebra1
factor: 180s^2+300sf+125f^2

math
A researcher wanted to answer the following question: What is the difference in students' computer anxiety based on whether or not they own computers? The researcher surveyed 92 undergraduate education students via an online survey. In the survey, the researcher asked a ye...

algebra1
factor: 180s^2+300sf+125f^2

Economics
How would you expect the return on a stock market fund to differ from the return on savings account? Why do you think the two rates of return differ?

Econ
How would you expect the return on a stock market fund to differ from the return on savings account? Why do you think the two rates of return differ?

Please help!
If your bank paid simple intrest Of 4.25% compounded annually how much intrest would you earn after three years on an initial deposit of $750.

algebra 1
Opening a book with 2 facing pages. The product of the page numbers is 600. What are the page numbers?

Economics
Stabilizing the national economy.. What effect is an increase in tax rates likely to have on the underground economy? Why?

Economics
Stabilizing the national economy.. What effect is an increase in tax rates likely to have on the underground economy? Why?

Econ
What effect is an increase in tax rates likely to have on the underground economy? Why?

algebra 1
If you are looking at a graph of a quadratic equation, how do you determine where the solutions are?

statistics
A biologist reports a confidence interval of (3, 2, 3, 8) when estimating the mean height in (in centimeters) of a sample of seedlings. The estimated margin of error is __________ , The sample mean is ________.

algebra 1
solve for x: x^2+12x+4 = 0

algebra 1
solve for x: x^2+12x+4 = 0

algebra 1
i think that I figured it out thanks

algebra 1
simplify 16^3/2

algebra 1
having trouble rewriting with rational exponents cuberootãxy^2z

algebra 1
ã2(9ã3 - 9ã9)

Physics
Thank you!!

Physics
A block of mass 9.00 kg is pushed up against a wall by a force P that makes a 50.0° angle with the horizontal as shown below. The coefficient of static friction between the block and the wall is 0.245. Determine the possible values for the magnitude of P that allow the blo...

pre-albegra word problem
I need to write a verbal rule to determine the total monthly cost of my cell phone, assuming I go over the 200 minutes. basic cell phone rate plan cost $29.99 a month plus 45 cents per minute for every minute over 200 minutes during the month.

algebra 1
how would i simplfy 16^3/2

algebra 1
solve 5^3/5 . 5^7/10

algebra 1
If D = 1.2ãh, how do I solve for h?

algebra 1
What happens if you are checking a solution for the rational expression and find that it makes one of the denominators in the expression equal to zero?

health
how are the seven organizational approaches used to studying the human body

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