A credit card company estimates that the average credit card balance of Americans is $3,210. A statistics student wants to know whether this is true for citizens of her home town. Which hypothesis test would be most appropriate for addressing this question? One sample z-test ...
March 14, 2015
1. What dynasty ruled the Korean peninsula from AD 668 to AD 935? Meiji Qin Silla*** Tokugawa 2. What type of government ruled North korea after World War II communist**** democratic dictatorship oligarchy 3.Both Japan and the Koreas been influenced by ________ the Tokugawa a ...
March 3, 2015
A ferris wheel has a diameter of 10 m and takes 24 sec to make one revolution. The lowest point on the wheel is 1 m above the ground. (4 marks) a. Sketch a graph to show how a rider's height above the ground varies with time as the ferris wheel makes a rotation. Assume the...
July 23, 2014
Math and Music
I have to do a presentation on how math and music relate. I have found some things and facts but everything is so complicated. If someone could help explain to me how I can narrow my topic down and make a presentation that is simple but effective. It can be anything within the...
March 21, 2014
A block is sliding along a frictionless surface at a speed of 3.6 m/s. It hits a spring of spring stiffness constant k = 150 N/m. How far has the spring compressed when the block comes to a stop?
September 13, 2013
Paige and Julia are playing volleyball. Paige is in spiking position when Julia gives her the perfect set. The 0.226-kg volleyball is 2.29 m above the ground and has a speed of 1.06 m/s. Paige spikes the ball, doing 9.89 J of work on it. Determine a) the total mechanical ...
September 13, 2013
The correct answer is 301. Steve, in the first line is 129, not 29... and you shouldn't work with decimals because in the end the ugly dominator simplifies with the numerator.
March 8, 2013
Biology! pleaseee helppp
About 70% of the human population can taste the bitter chemical phenylthiocarbamide (PTC), which is found in foods like broccoli. The allele, T, for tasting PTC is dominant over the allele, t, for not tasting it. Calculate the allele frequencies using the Hardy-Weinberg ...
November 10, 2012
A 59-kg housepainter stands on a 16-kg aluminum platform. The platform is attached to a rope that passes through an overhead pulley, which allows the painter to raise herself and the platform. (Ignore the mass of the pulley and any friction in the pulley.) (a) With what force ...
October 4, 2012
A box of mass m2 = 3.1 kg rests on a frictionless horizontal shelf and is attached by strings to boxes of masses m1 = 1.6 kg and m3 = 2.6 kg as shown below. Both pulleys are frictionless and massless. The system is released from rest. After it is released, find the tension in ...
October 3, 2012
Which of the following statements correctly compares the functions of a plant's roots and stem? The stem contains a high percentage of cells that provide structural support, unlike the roots. The stem is the first part of the plant to emerge from a seed, followed by the ...
September 28, 2012
This case came about because President Marbury refused to honor the last-minute judicial appointments of Pres. Madison. A) True B) False 2. Marbury wanted the courts to issue of writ of mandamus, a court order forcing Jefferson to give him his commission. A) True B) False 3. ...
July 21, 2012
Fill in the blanks with words from the box. estés molesta plástico recicle sea Es posible que reciclar (1) una de las mejores formas de proteger el medio ambiente. Quizás no te das cuenta (you're not aware), pero reciclar vidrio, aluminio y (2) ahorra...
July 3, 2012
Fill in the blanks with the subjunctive form of the verbs. 1. Me alegro de que el ecoturismo (ser) un buen negocio (business). 2. Es una lástima que tú no (reciclar) el vidrio. 3. No crees que ellos (querer) usar energía solar. 4.Ojalá todos ...
July 3, 2012
The Kingdom Monera has been separated into two domains, the Archaea and the Bacteria. Which of the following was most important in prompting scientists to change the way these organisms were classified? a.)Major differences were discovered in the structure and operation of the...
May 27, 2012
From a tree that is 15m tall, a fruit of mass 2kg falls to the ground. (a) find the initial GPE (b) find the speed at impact (c) find the KE at impact (d) how much energy was lost to heat and sound after the mass came to rest?
March 15, 2011
How many people were at a party if There were 105 handshakes at a party and if each person at the party shook hands with exactly once with every other person. The answer is 15. How do I write the problem?
October 25, 2010
highway saftey engineers build soft barriers so that cars hittingthem will slow down at a safe rate. a person wearing a saftey belt can withstand an acceleration of 300 m/s how thick should barriers be to safely stop a car that hits a barrier at 110 km/h
September 9, 2010
an astronaut drops a feather from 1.2 m above the surface of the moon. if the acceleration of the gravity on the moon is 1.62 m/s down , how long does it take the feather tho hit the surface
September 9, 2010
in my workbook it says give the opposite of each expression and the problems are: -10t+21 -x+2z there are alot more but i thought if someone explained a couple of these to me maybe id understand the rest. idk just please help me!!!
August 26, 2008
there's a problem on my worksheet and it gose like this "to add the er suffix to words ending in a stressed sylable with one vowel and one consonant,___________________________." I've got that but then it asks for an example thats ware i'm stuck.
January 22, 2008
I need help with vertices! The vertices of triangle FGH are F(1,1), G(3,-5),H(6,0). Find the coordinates of the vertices after a refelection over the y-axis. I'm not sure how to do this. Is there a certain formula I need to know? The reflection across the y-axis negates ...
September 13, 2006