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September 20, 2014

Posts by kim


Total # Posts: 2,073

Pre-Cal
given the function y=2sin3x-1, identify the following below. also show its graph for the primary cycle. (identifying parts of a trig. equation) asymptotes= k= c= axis= primary cycle= period=
March 6, 2012

Pre-Cal
solve and round your answer to 4 dec. sinx= .4 in [0,2pi] secx= -3 in [0,pi]
March 6, 2012

pre-cal
5 t values used to graph (called key pts or inflection pts) and primary cycle? 1) y=2sin(x-pi) 2) y=-sin3x-2 3) -3cos(1/2x+pi/3)+1 4) cospi(x-1)
March 5, 2012

geometry
The diameter of Earth is 12,742 kilometers; the diameter of the moon is 3476 kilometers. a. If you flew around Earth by following the equator at a height of 10 kilometers, how many trips around the Moon could you take in the same amount of time, at the same height from the ...
March 4, 2012

geometry
A flower bed in the corner of your yard is in shape of a right triangle. The perpendicular sides of the bed measure 6 feet 8 inches and 8 feet 4 inches. Calculate the area of the flower bed.
March 4, 2012

geometry
you want to buy a pickup truck and are interested in one with a large carrying capacity. One model features a rectangular prism-shaped cargo space, measuring 6ft by 10ft by 2ft;another has a space with dimensions 5ft by 11ft by 3ft. Which truck provides you with most carrying ...
March 4, 2012

geometry
you want to buy a pickup truck and are interested in one with a large carrying capacity. One model features a rectangular prism-shaped cargo space, measuring 6ft by 10ft by 2ft;another has a space with dimensions 5ft by 11ft by 3ft. Which truck provides you with most carrying ...
March 4, 2012

geometry
you want to buy a pickup truck and are interested in one with a large carrying capacity. One model features a rectangular prism-shaped cargo space, measuring 6ft by 10ft;another has a space with dimensions 5ft by 11ft by 3ft. Which truck provides you with most carrying ...
March 3, 2012

geometry
Hot air balloons require large amounts of both hot air and fabric material. A hot air balloon is spherical with a diameter of 25 feet . a. Does finding the surface area help you determine the amount of the hot air or the fabric material? Explain
March 3, 2012

geometry
You are buying a ladder for your 30-foot-tall house. for safety, you would like to ensure that the base of the ladder be placed at least 8 foot from the base of the house. What is the shorest ladder you can buy in order to be able to reach to top of your house?
March 3, 2012

geometry
Tree stands 25 feet tall and 15 feet wide base 7.5 feet . You want to hang strings of lights from top to bottom on the outside. How long should each string be?
March 3, 2012

Chemistry
What is the molarity of an aqueous ammonia solution that has an OH- concentration of 0.0011 M? Kb = 1.8x10-5
March 2, 2012

Chemistry
What is the molarity of an aqueous ammonia solution that has an OH- concentration of 0.0011 M? Kb = 1.8x10-5
March 2, 2012

Pre-Cal
This exercise is based on the following table, which lists interest rates on long-term investments (based on 10-year government bonds) in several countries in 2008. Assuming that you invest $9,000 in the United States (3.9%), how long (to the nearest year) must you wait before...
February 29, 2012

math
A scale model racing car is 11 inches long, 3 inches wide, and 2 inches tall. The actual racing car is show at the right. How wide is the actual racing car?
February 28, 2012

chemistry
A sample of gas has an initial volume of 14.7L at a pressure of 1.02 atm. If the sample is compressed to a volume of 10.2L, what will its pressure be?
February 28, 2012

Chemistry
how do u complete these questions? 2HCI(aq)+Pb(NO3)2(aq)---> 2HI(aq)+K2SO3(s)---> Pb(NO3)2(aq)+2KCI(aq)---> Ba(NO3)2(aq)+Na2SO4(aq)---> K2CO3(aq)+Ba(NO3)2(aq)---> HCI(aq)+AgNO3(aq)--->
February 28, 2012

math
how much money do i need for simple interest for $2000 at 5% interest in 2 years?
February 27, 2012

Math
x+y=5 x-y=3 Please help me solve this system of equation and show your work thanks
February 24, 2012

algebra
solve by the substitution method. 6x+3y=-21 -4x+y=41
February 24, 2012

statistics
1.25
February 24, 2012

Math
6-1/5y is less than or equal to 7 Please help me solve this and show your work thanks.
February 22, 2012

Math
Evaluate the following expressions: A.) P(105,1) B.) P(10,4) C.) P(11,3)
February 21, 2012

INF 336: Project Procurement
a. Why is it preferable to separate need identification and defining commercial equivalents into two separate stages? b. Why is early supply/supplier important? c. What are the disadvantages of specifying by performance? What are the advantages? d. How does a supply ...
February 21, 2012

eng 225
Which of the following leads to the deepest appreciation of a film? (Points : 1) Turning off your brain completely and letting life’s pressures slip away Paying attention to what a film is trying to say Learning the technical names of a film’s elements Learning the ...
February 19, 2012

eng 22
Which of the following leads to the deepest appreciation of a film? Turning off your brain completely and letting life’s pressures slip away Paying attention to what a film is trying to say Learning the technical names of a film’s elements Learning the roles of the ...
February 19, 2012

algebra
Factor completely. 25a^2-64
February 13, 2012

pre-algebra
One side of a rectangle is 6 in and the other side is x inches. Find the possible value of x if the area must be at least 84 sq inches.
February 9, 2012

Chemistry
Time(seconds) 0 200 500 800 1200 1500 [A in Moles] .184 .129 .069 .031 .019 .016 What is the instantaneous rate of the reaction at t= 800 seconds?
February 9, 2012

Chemistry
A flask is charged with 0.100 mol of A and allowed to react to form B according to the hypothetical gas-phase reaction A(g)--> B(g) The following data are collected: Time (s) 0 40 80 120 160 Moles of A .100 .067 .045 .030 .020
February 9, 2012

Physics
A rescue plane wants to drop supplies to isolated mountain climbers on a rocky ridge H = 231 m below. If the plane is traveling horizontally with a speed of 227 km/h (63.1 m/s), how far in advance of the recipients (horizontal distance) must the goods be dropped? 433m Suppose...
February 7, 2012

Math
I have to solve the equation by finding a common base. 9^(x2-1)= 1/27^x Do i cross multiply and solve for x?
February 4, 2012

algebra
you can rent a boogie board at tybee island for a $ 10 flat fee plus $.50 for each hour.The situation can be modeled by a linear eqution.What is the slope
January 31, 2012

central highschool
ken's cartoons for the school newspaper, but they wouldn't be good
January 26, 2012

geometry
need help with pythagorean theoren
January 25, 2012

math
Shane invests $7,000 in bonds that earn simple interest of 3%. The interest is payable at the maturity of the bonds after 5 years. Find the total amount that Shane will receive at the end of 5 years.
January 25, 2012

electrochemistry
How do I determine the standard potential for an aluminum half cell? Can someone please explain to me how I do this? like what are the steps? thanks
January 25, 2012

psychology
The mean score for each question.Who came up with the psychosexual stages?
January 22, 2012

algebra
A rectangular room measures 13 ½ feet long by 22 ¼ feet wide. Find the area of the room; remember, area = length x width.
January 20, 2012

college math
Select Two Cards In a board game uses the deck of 20 cards shown. first roll has five birds 2 yellow, 3 red, second roll 5 lions same, third roll five frogs the same, fourth roll has five monkeys the same. Two cards are selected at random from this deck. Determine the ...
January 17, 2012

General Psychology
what is the advantages and disadvantages of using the archival method?
January 17, 2012

Physics
A subway train starts from rest at a station and accelerates at a rate of 1.50m/s^2 for 13.3s . It runs at constant speed for 71.0s and slows down at a rate of 3.48m/s^2 until it stops at the next station. Find the total distance covered. Express your final answer in kilometers
January 17, 2012

Physics
A subway train starts from rest at a station and accelerates at a rate of 1.50m/s^2 for 13.3s . It runs at constant speed for 71.0s and slows down at a rate of 3.48m/s^2 until it stops at the next station. Find the total distance covered. Express your final answer in kilometers
January 17, 2012

physics
i got it thank
January 16, 2012

physics
Time() 0 2 4 6 8 10 12 14 16 Velocity() 0 0 2 5 10 15 20 22 22 By measuring the slope of your curve, find the magnitude of the instantaneous acceleration at times = 9s i dont know how to solve it
January 16, 2012

math
a. Suppose a market research company finds that at a price of p = $30, they would sell x = 32 baskets each month. If they lower the price to p = $10, then more people would purchase the baskets, and they can expect to sell x = 52 baskets in a month’s time. Find the ...
January 15, 2012

LOGIC (PHI)
Truth tables can do what?
January 15, 2012

OOP PROGRAMMING
Write a program the inputs (from the user) the number of hours worked and hourly pay rate for employees and outputs their total pay. The program should process an arbitrary number of employees; the user will terminate input by entering 0 for hours worked and pay rate. Use a ...
January 14, 2012

math
To balance a see saw how do you figure how far from the fulcrum should you put the weight.
January 11, 2012

Math
How many time can.03 stamp and .08 go into 2.00 nine different times
January 11, 2012

math
Given p is false, q is true, and r is false, find the truth value of the statementShow step by step work. Use keyboard shortcuts of --àfor →, < --- > for→, ↔, v for V, and˄For ˄.
January 9, 2012

Math
Incidence rate: Women 125 per 100,000 Men 1.2 per 100,000 This statistic says that for every 100,000 women in the U.S., 125 developed breast cancer. For every 100,000 men, fewer than two developed breast cancer. From these numbers, we can see that breast cancer is about 100 ...
January 8, 2012

Math
Incidence rate: Women 125 per 100,000 Men 1.2 per 100,000 This statistic says that for every 100,000 women in the U.S., 125 developed breast cancer. For every 100,000 men, fewer than two developed breast cancer. From these numbers, we can see that breast cancer is about 100 ...
January 8, 2012

math
Incidence rate: Women 125 per 100,000 Men 1.2 per 100,000 This statistic says that for every 100,000 women in the U.S., 125 developed breast cancer. For every 100,000 men, fewer than two developed breast cancer. From these numbers, we can see that breast cancer is about 100 ...
January 8, 2012

Algebra
there were 39, 520 breast cancer deaths in the U.S. in 2011, or ___ of the 2007 breast cancer deaths in the U.S. what is the equation to determine the number of breast cancer deaths in 2007 in the U.S.
January 7, 2012

math
Find the approximate value of the volume of the right circular cone of 20 cm , 32 cm with a circular base shown below. Approximate your solution to the nearest hundredth.
December 29, 2011

math
Find the exact value of the volume of a can of sauerkraut with a diameter 12 centimeters and height of 8 centimeters. Include correct units with your solution. Use "pi" in place of the pi symbol.
December 26, 2011

math
The length of side a, b if the congruent triangles is c) 28 ͦ a)28 what is the length of side ab
December 23, 2011

Physics
Sally Skier skiis down a rough ice covered 10.0 m high incline into a smooth bowl of radius 4.0 m. Sally starts her descent with a speed of 3.0 m/s at the top of the hill and arrives at the bottom of the bowl (point B) with a speed of 10.3 m/s. Sally has a mass of 65.0 kg. a. ...
December 12, 2011

physics
A: weight = 15.0N = mg, g = 9.81, you can find mass, 25N = ma, rearrange with your mass value to find acceleration B: X = Xo + VoT + 1/2aT^2 Xo=0, Vo=0, so X = 1/2aT^2
December 12, 2011

PSYCHOLOGY! HELP!
For each sentence in the paragraph, discuss the social influence factors that were most likely in operation. Alvin Reid, a well-dressed and ‘business-like’ man, steps into the classroom while Ms. Ramkissoon is about to start her lecture. ---- authority He politely ...
December 10, 2011

statistics
make a confidence statement about the percent of all 620 adults whose support of baseball was affected by the players strike
December 8, 2011

statistics
use the quick method to estimate the margin of error for conclusions about all 620 adults with 95% confidence
December 8, 2011

statistics
in 1995,the gallup poll asked a sample of 620 adults whether their support of baseball had been affected by a recent player strike,248 people in the sample said "yes".identify the population,parameter,sample,and statistic in this setting
December 8, 2011

science
should we produce more nuclear reactors or less of them?
December 5, 2011

statistics
Consider a sample mean (xbar) of 46 caluclated from a sample of size 35 drawn from a population of over 1000. Would it be appropriate to use the standard score table to look up the probability of a z score calculated on these data? Why or why not?
December 2, 2011

geometry
Write and solve an equation to answer the question. Round your answer to the nearest tenth of a percent, if necessary. 140 towns is what percent of 1940 towns
December 2, 2011

algebra
How do you determine whether/how many nonreal solutions an equation has? The statement: x^3 - 4x^2 - 3x + 2 = 0 has two nonreal solutions is false How do I solve this?
December 1, 2011

STATISTICS QUESTION
Using the definition of recovery provided in W1: Assignment 5, determine how many participants recovered at the end of posttreatment and use a chi-square analysis to compare recovery rates across the three treatments at both posttreatment and follow-up. CBT Post treatment ...
December 1, 2011

geometry
in triangle FSH, angle f is 58 degrees and angle s is 64 degrees. in triangle LVQ, angle v is 64 degrees and angle q is 48 degrees are the two triangles similar?
December 1, 2011

physics
A 69.4-kg skier coasts up a snow-covered hill that makes an angle of 24.3° with the horizontal. The initial speed of the skier is 7.04 m/s. After coasting 1.78 m up the slope, the skier has a speed of 3.04 m/s. Calculate the work done by the kinetic frictional force that ...
November 30, 2011

Economics
b
November 29, 2011

calculus
Find the derivative. f(x)=ln(8-e^-x) I got -e^-x/8-e^-x but it was wrong. WHAT DID I DOOOO?!
November 29, 2011

calculus
Find the derivative. f(x)=ln(8-e^-x) I got -e^-x/8-e^-x but it was wrong. WHAT DID I DOOOO?!
November 28, 2011

calculus
w=4e^sqrt(s) Find the derivative of the function.
November 28, 2011

Social studies
How did the proclamation of 1763 conflict with the english bill of rights.
November 27, 2011

Social studies
How did the proclamation of 1763 conflict with the english bill of rights.
November 27, 2011

phi 103
1. ture
November 26, 2011

accounting
jim reed manages a fleet of utility trucks for a rural county government. He's been in his job 30 years, and he knows where the angles are. He makes sure that when new trucks are purchased, the salvage is set as low as possible. Then, when they become fully depreciated ...
November 25, 2011

socials
what happened after the cypress hill massacre?? The white invaders formed the Northwest Mounted Police ???? what else happened?
November 21, 2011

socials
what happened after the cypress hill massacre?? The white invaders formed the Northwest Mounted Police ???? what else happened?
November 20, 2011

chemistry
Acetic acid (CH3COOH) reacts with isopentyl alcohol (C5H12O) to yield the ester isopentyl acetate which has the odour of bananas. If the yield from the reaction is 45%, how many grams of isopentyl acetate are formed when 3.90 g of acetic acid and 6.28 grams of isopentyl ...
November 17, 2011

Physics
An airplane is flying with a constant speed of 275 m/s along a horizontal circle with a radius of 1.23 x 104 m. If the lift force of the air on the wings is perpendicular to the wings, at what angle, relative to the horizontal, should the wings be banked?
November 15, 2011

chemistry
how do i convert the reagent and the number of grams into moles?
November 15, 2011

chemistry
I found the limiting reactant. What numbers do i use to calculate the theoretical yield?
November 15, 2011

chemistry
Acetic acid (CH3COOH) reacts with isopentyl alcohol (C5H12O) to yield the ester isopentyl acetate which has the odour of bananas. If the yield from the reaction is 45%, how many grams of isopentyl acetate are formed when 3.90 g of acetic acid and 6.28 grams of isopentyl ...
November 15, 2011

chemistry
thank you I get it now
November 15, 2011

chemistry
The following reaction is used to produce tungsten(VI)oxide: WS3(s) + O2(g) → WO3(s) + SO2(g) The WO3 is then heated and undergoes a decomposition reaction produce tungsten and oxygen gas. How many grams of tungsten could be produced if 16.91 grams of WS3 are used? How ...
November 15, 2011

Chemistry
C15H30 is a hydrocarbon that reacts with oxygen gas to give carbon dioxide and water. Calculate the mass of water (grams) formed when 724.05 grams of the hydrocarbon reacts with the oxygen gas.
November 14, 2011

Operations Management
Suppose the company has revised its plans for the processes described in part “a” to accommodate technological process changes. Determine the placement of departments that will now minimize total travel cost. Use the distances shown in part “a”, but use the...
November 10, 2011

Operations Management
Determine the placement of departments for a newly designed facility that will minimize total transportation costs using the data in the following tables. Assume that reverse distances are the same. The locations are shown in the grid. Use a cost of $1 per trip yard.
November 10, 2011

physics : HELP PLEASE
A ball rolls along a desktop with an uniform velocity of 3 m/s. What is the displacement after 10 seconds have passed? A ball is thrown upward with an initial velocity of 18 m/s? What is the maximum height the ball reaches if the ball is assumed to leave from the ground? &#...
November 8, 2011

physics : HELP PLEASE
A ball rolls along a desktop with an uniform velocity of 3 m/s. What is the displacement after 10 seconds have passed? A ball is thrown upward with an initial velocity of 18 m/s? What is the maximum height the ball reaches if the ball is assumed to leave from the ground? &#...
November 8, 2011

physics
A ball rolls along a desktop with an uniform velocity of 3 m/s. What is the displacement after 10 seconds have passed? A ball is thrown upward with an initial velocity of 18 m/s? What is the maximum height the ball reaches if the ball is assumed to leave from the ground? &#...
November 8, 2011

physics
A ball rolls along a desktop with an uniform velocity of 3 m/s. What is the displacement after 10 seconds have passed? A ball is thrown upward with an initial velocity of 18 m/s? What is the maximum height the ball reaches if the ball is assumed to leave from the ground? &#...
November 8, 2011

physics
does F=ma predict the acceleration of the system accurately?
November 7, 2011

physics
does F=ma predict the acceleration of the system accurately?
November 7, 2011

physics
does F=ma predict the acceleration of the system accurately?
November 7, 2011

Math
Find the probability that a randomly selected sample of 30 men has a mean greater than 68 inches. The mean height of men is 69 inches and standard deviation of 2.8 inches
November 6, 2011

data management
A survey of 1000 veiwers conducted by a television station produced the following data: 40% watched the news at 12:00 60% watched the news at 18:00 50% watched the news at 23:00 25% watched at 12:00 and 18:00 20% watched at 12:00 and 18:00 20% watched at 18:00 and 23:00 10% ...
November 6, 2011

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