Friday
January 20, 2017

# Posts by terry

Total # Posts: 375

Math
In a survey, 175 consumers were asked about their buying preferences concerning a product that is sold in the market under three labels. The results were as follows. 14 buy only those sold under label A. 25 buy only those sold under label B. 28 buy only those sold under label ...
January 10, 2017

math
Eleven graduate students have applied for two available teaching assistantships. In how many ways can these assistantships be awarded among the applicants if (a) No preference is given to any one student? (c) The group of applicants includes seven men and four women and it is ...
January 10, 2017

Math
In how many different ways can a panel of 12 jurors and 2 alternates be chosen from a group of 15 prospective jurors?
January 10, 2017

Math
A student is given a reading list of eight books from which he must select four for an outside reading requirement. In how many ways can he make his selections?
January 10, 2017

Pre Calc
List the elements of the set in roster notation. (Enter O for the empty set.) {x | 7 - x = 6 and x is an integer}
January 10, 2017

pre Calc
Find an equation of the vertical line that passes through (x, y) = (?3, 4).
January 4, 2017

pre Calc
Assume the number of U.S. dial-up Internet households stood at 38.5 million at the beginning of 2004 and was projected to decline at the rate of 3.5 million households per year for the next 9 years. (a) Find a linear function f giving the projected U.S. dial-up Internet ...
January 4, 2017

Pre Calc
The annual sales of Crimson Pharmacy are expected to be given by S = 2.4 + 0.3t million dollars t years from now, whereas the annual sales of Cambridge Pharmacy are expected to be given by S = 1.1 + 0.7t million dollars t years from now. When will Cambridge's annual sales ...
January 4, 2017

Pre calc
Find an equation of the line that passes through the given points. (Let x be the independent variable and y be the dependent variable.) (3, 13) and (4, 20)
January 4, 2017

Pre calc
Find an equation of the line that has slope m and y-intercept b. (Let x be the independent variable and y be the dependent variable.) m = ? 3/2 ; b = 3/4
January 4, 2017

Pre Calc
If the line passing through the points (a, 1) and (2, 8) is parallel to the line passing through the points (12, 6) and (a + 2, 1), what is the value of a?
January 4, 2017

Chemistry
Write an equation for the oxidation of NH2OH to HNO3 by KBrO3. Balance the reaction equation using the ion-electron method.
November 28, 2016

english
How does the author create such a heartwarming feeling in this story? A) by revealing the thoughts and actions of Josh B) by revealing the thoughts and actions of Coach Wilkins C) by revealing the thoughts and actions of Principal Edwards D) by revealing the thoughts and ...
November 10, 2016

Science
Students were given materials to complete a circuit to turn on one light. The materials received were 2 wires,AA battery, and various sizes lightbulbs.What is the variable in the experiment? Wires,battery, size of lightbulb, or time of day
November 1, 2016

math
Write the given expression as the tangent of an angle. tan 7x − tan x/ 1 + tan 7x tan x
July 11, 2016

math
Write the given expression as the cosine of an angle. cos 60° cos 65° − sin 60° sin 65°
July 11, 2016

life orientation
clearly describe a recent corruption and fraud case in the country making headlines in the media:who the players are who got involved,the extent to which it linked to other crimes,role played by the media and that of the state to deal with this crime
May 2, 2016

Stats
The GRE has a combined verbal and quantitative mean of 1000 and standard deviation of 200. Scores range from 200 to 1600. a. what % of the persons score above 1300? b. above 800? c. below 1200? d. above what score do the top 20% of the test-takers score? e. Below what score do...
April 17, 2016

math
1) A rectangular tank, 15 cm long and 20 cm wide, is filled with water to a depth of 12 cm. When a rock is put in, the water level rose to 15 cm. What is the volume of the rock?
March 23, 2016

Chemistry
Use the Table of Thermodynamic Data to decide which of the following reactions have K>1 at 298 K: (i) HCl(g) + NH3(g)-->NH4Cl(s) (ii) 2 Al2O3(s) + 3 Si(s)-->3 SiO2(s) + 4 Al(s) (iii) Fe(s) + H2S(g)-->FeS(s) + H2(g). Which of the products of these reactions are ...
March 23, 2016

English
The cow jumped over the moon what is the subject, verb and object in this sentence.
March 19, 2016

Physics
Thank for the explanation, I knew about momentum but the fact that kinetic energy was mentioned in the question just threw me off.
March 5, 2016

Physics
Does the total kinetic energy of an isolated system necessarily have to be conserved when its total momentum is conserved?
March 5, 2016

college pre-calc
Would a truck that is 12 feet tall and 9 feet wide fit through a parabolic arch that is 15 feet high at the high point and 16 feet wide?
January 31, 2016

Physics
Thanks! so the 100m/min is right?
January 31, 2016

Physics
Consider a circular track with a radius of 200 meters. A runner starts on the east side and runs around the track to a point diametrically opposite her starting point. -What is the magnitude of her displacement? 400m -She then runs the rest of the way around the track to ...
January 31, 2016

Words
word has the same root as diagram? a. agree b. diameter c. grade d. ramp
January 7, 2016

Algebra 2
Find the x and y intercepts for the following parabolas. y=(x+12)^2-144 y=(x-8)^2-4
December 15, 2015

math
Compute the hurdle rate above based on the following.1. Note payable bank \$2,000,000.00 with rate of 7.5%, The company has a tax rate of 30%.2. Bank Mortgage Loan \$1,000,000.00 with rate of 6% The company has a tax rate of 30%.3. Preferred stock \$750,000.00 with coupon rate 10...
November 19, 2015

math
How much of 20% alcohol solution and 50% alcohol solution must be mixted to get 9 liters of 30% alcohol solution?
November 9, 2015

Geometry
The area of a triangle is 30cm^2. What is the base of the triangle if the height is 6 cm?
October 13, 2015

Chemistry
okay thank you very much!
October 13, 2015

Chemistry
So far I have calculated for the moles of ch4 and o2, by the ideal gas law. I then used the molar ratio to find the moles of product from each individual reactant. I determined that the limiting reactant is CH4 (don't know if that's correct). From there would I just ...
October 13, 2015

Chemistry
The apparatus contains methane and oxygen at a temp of 383K. Here is the reaction: CH4(g) + 2O2(g) --> CO2(g) + 2H2O(g) solve for final pressures of all species and the final total pressure, For CH4 the volume = 1.164L the pressure = 6atm For O2 the volume = 0.827L the ...
October 13, 2015

Chemistry (Le Chatelier's Principal)
Methanol has the formula CH3OH and can be produced by the reaction of carbon monoxide with hydrogen gas. CO + 2 H2 ￼<-->￼ ￼CH3OH + heat In an attempt to maximize the yield of methanol (amount of methanol produced), a chemist would try to shift the ...
October 4, 2015

Computer
whats the best topic for a slide show presentation that could capture so much attention of the teens ?? i just cant think of any topic ... thanks for your help in advance :)
September 16, 2015

Psychology
what is the unconditioned stimulus (US), unconditioned response (UR), condition stimulus and conditioned response of this example??? 1.)Art goes to a meeting in New Orleans and tries some oysters at the oysters bar. He likes the taste and eats quite few. Soon he becomes very ...
September 15, 2015

Math
A man hires a car with the fuel tank 5/8 full. He travels 180 miles and is left with 2/8 of a tank. How much fuel will he need to put in the car at the start of his return journey of 200 miles to ensure he has 5/8 of a tank when he gets back with no wasted cost?
September 10, 2015

math
thank you Ms. Sue. I just couldn't really understand the question before, but now I see.
August 18, 2015

math
at the rate of 50 mph a car can travel 14.6 miles for each gallon of gas used. On a trip Mr. Hanson used 12.5 gallons of gas traveling at a speed of 50 mph. the number of miles covered during the trip was:
August 18, 2015

math
you invested \$8000 between two accounts paying 7% and 9% annual interest, respectively. If the total interest earned for the year was \$600 how much was invested at each rate?
July 5, 2015

accounting 100
The following items are taken from the financial statements of the Postal Service for the year ending December 31, 2014: Accounts payable \$ 18,000 Accounts receivable 11,000 Accumulated depreciation – equipment 28,000 Advertising expense 21,000 Cash 15,000 Owner’s ...
May 7, 2015

Physics
A yo-yo is spun from rest by pulling on the string with a constant tension of 2.0 N. The radius of the inner rod on which the string is strung around is 0.50 cm. The tension is applied for 5.0 seconds after which the yo-yo is observed to spin with an angular velocity of 15 rad...
April 22, 2015

Calculus
A rectangular page is to have a print area of 96 square inches. The top and bottom margins are to be 1.5 inches each and the left and right margins are to be 1 inch each. What dimensions will minimize the total area of the page. I got L=8sqr(2) But I'm not sure how to get...
April 13, 2015

Math
I have a line plot ranging from 0-15. The numbers represent the "number of books read by students." There are no students in 0-1-11-14 or 15. What would the median number of books read by students be? My "incorrect" answer was 7.5! Please help and explain. ...
March 23, 2015

critique reasoning
Alex decides that 21 divided by 3=7 is NOT a true equation. Is Alex correct? Explain
March 4, 2015

math
Critique Reasoning Alex decides that 21 divided by 3 = 7 is NOT a true equation. Is Alex correct? Explain
March 4, 2015

physics
If micheal Jordan has a vertical leap of 1.29 m, what is his take off speed and his hang time(total time to move upwards to the peak and then return to the ground)?
February 25, 2015

maths
How do I plot three points on a graph if the first coordinate is equal to (-2.8) and the other two coordinates are unknown?
February 25, 2015

Math
Solve for y: x = (x+1)(x+y)
January 7, 2015

Algebra
What are the complements and supplements of: (y + 20)°. Thx!
January 5, 2015

Algebra
Hi there. Can "x^2 - 10x + 22 = -2" be solved by taking the square root? Can "4x^2 + 8x + 3 = 0" be solved by taking the square root? If so, please show me an explanation.
December 29, 2014

Algebra
Mr. Zerman went shopping. In the first store he spent half of his money plus an additional dollar. At the second store he spent half of his remaining money plus an additional dollar. This pattern continued until he left the fifth store with no money left. How much money did he...
December 22, 2014

Honors Physics
Yes he will at .1m/s.
December 18, 2014

Algebra
A box is to be formed from a rectangular piece of sheet metal by cutting squares measuring 5 inches on a side and then folding the sides. The piece of sheet metal is twice as long as it is wide. If the volume of the box is to be 1760 in^3, what are the dimensions of the ...
December 17, 2014

math
the ratio of girls to boys in the chorus is 3:2. If there are 50 students in chorus, how many boys are there and how many girls?
November 30, 2014

Math
Write this number in word form 408032009
November 6, 2014

Optics
How to find critical angle using n?
November 2, 2014

Algebra
An herbalist has 40 oz of herbs costing \$4 per ounce. How many ounces of herbs costing \$1 per ounce should be mixed with these 40 oz of herbs to produce a mixture costing \$2.20 per ounce? oz
September 27, 2014

math
the sum of my digits is 13, my hundredths place is 3 less than 5, my ones place is 4 more than 3, my thousands place is even, what 4-digit numbers can I be
August 20, 2014

statistics
Construct a 95% prediction interval for the number of hours of sleep for an adult who is 45 years old
July 19, 2014

science
At a murder scene, you have started making an image of a computer’s drive. You’re in the back bedroom of the house, and a small fire has started in the kitchen. If the fire can’t be extinguished, you have only a few minutes to acquire data from a 10 GB hard disk...
July 16, 2014

math
Thanks,now I totally understand
July 5, 2014

math
X+3y+9=0 and x+3y-7=0 are parallel or not ,how to work out,can anyone show me please
July 5, 2014

math
please represent algebraic express 20 less than 19 divided by 3X
July 1, 2014

Maths
Find the derivative of y=1/x at x=1/4 Answer: 1/1/16
June 30, 2014

algebra
The population of Arizona was 4.2 million in 2000 and 6.9 million in 2008. If the population grew exponentially, which one of the following models the population as a function of time (in years since 2000)?
June 15, 2014

Physics
Two masses are connected by a string over an ideal pulley as shown. The coefficient of kinetic friction between m1 and the table surface is 𝜇. Find an expression for their common speed after the blocks have moved a distance L. You can assume that you know: m1, m2, L, ...
May 30, 2014

Physics
0.2295
May 27, 2014

Physics
The flux density through a 200 turn coil of area 8.5*10^-4 m squared changes from 0.03 T to 0.12 T in 15 mins. Calculate the induced emf in the coil.
May 27, 2014

Chemistry
The motor is connected from it's battery and used as a generator.On the axes(vertical is amps and horizontal is time) show the type of current it provides when it is rotated through 2 complete revolutions
May 27, 2014

algebra
Suppose that state’s record high temperature of 102 was set in 1930, and the record low of -14 was set in 1966. What is the range of these temperature extremes?
May 26, 2014

algebra
Complete the table of solutions 7x-2y =-21 X Y (X,Y) 3 ---- (---- , ----) --- 0 (---,---)
May 26, 2014

ALGEBRA
How many inches of molding are needed to produce the square picture frame 13" 1/8
May 25, 2014

ALGEBRA
Complete the table of solutions 7x-2y =-21 X Y (X,Y) 3 ---- (---- , ----) ----- 0 (---,---)
May 25, 2014

ALBEBRA
INPUT ---------- OUTPUT X 2x-x/2 -10 -10
May 25, 2014

ALGEBRA
Suppose that state’s record high temperature of 102 was set in 1930, and the record low -14 of was set in 1966. What is the range of these temperature extremes?
May 25, 2014

ALGEBRA
In the table of solutions, which entry is the y-intercept of the graph and which entry is the x-intercept of the graph? x y (x, y) 4 0 (4, 0) 0 2 (0,2) –4 –4 (–4, –4)
May 25, 2014

ALGEBRA
A student inherited \$4,200 and deposits x dollars in American Savings. Write an expression to show how much she has left to deposit in a City Mutual account.
May 25, 2014

geometry
if you add 10% to each side of a triangle what is the % of gain
May 18, 2014

Math
Admission to a museum cost \$12 for adults and \$7 for children. A group of 35 people attending the museum paid a total of \$315 in admission fee. Write a system of equations to represent the situation. Let A represent the number of adults admissions and C represent the number of...
March 25, 2014

Chemistry
Alternative answers: A)10 B)13 C)1.9 D)3.8 E)12
March 16, 2014

Science
Determine the pkb of methylamine if the kb is 4.4*10^-4.
March 16, 2014

Algebra
what is the expression that is equivalent to -2(x-3)
March 15, 2014

Science
runoff does increase ersion
March 3, 2014

math
I am helping my daughter and I need help on this question in the number 57,733 contains two sets of digits in which one digit is ten times as great as the other what are the values of the digits in each set help please!!!!
February 15, 2014

math
In the number 7,725 which places contain digits where one digit is ten times as great as the other ?
February 15, 2014

math
a quadrilateral has two angles that measure 88 and 62. the other two angles are in a ratio of 16:19. what are the measures of those two angles?
January 27, 2014

MICROECONOMICS
Explain the relationship between labor earnings and the distribution of income
December 4, 2013

MICROECONOMICS
How have insights from the field of psychology influenced the thinking of economists in recent years?
December 4, 2013

MICROECONOMICS
Explain the relationship between labor earnings and the distribution of income
November 28, 2013

maths
2/π ∫ π - 0 t^2 cos (nt) dt how to solve this anyone?
October 5, 2013

MATH
Chantal has a flower bed. She has three types of flowers, Daffodils, Hyacinths and Tulips. She has 8 Daffodil bulbs, 10 Hyacinths bulbs and 12 Tulip bulbs. For every 3 bulbs that were planted, how many hyacinth bulbs were planted? Was it 1,2,3, or 5?
September 19, 2013

physics
A rock is dropped into the Grand Canyon. It takes 18 seconds to hit the bottom. Calculate how deep the canyon is.
August 26, 2013

english
choose the answer that displays the correct spelling of the plural form of the words in parentheses
July 5, 2013

Math
What would be the present value of \$365 a year for 20 years at a 14 % discount rate.
June 18, 2013

Finance
IF i AM PAYING \$1,626.83 MONTH FOR 15 YEARS AT 4% WHAT WOULD THE ORIGINAL MORTGAGE AMT BE
June 18, 2013