Sunday
February 7, 2016

Posts by Wayne

Total # Posts: 149

algebra
Find the distance d (P1, P2) between the points P1 and P2 P1 = (−4, 4) ; P2 = (1, 6) wayne
February 5, 2016

algebra
Find the distance d (P1, P2) between the points P1 and P2 P1 = (−4, 4) ; P2 = (1, 6) wayne
February 4, 2016

Physics
Vehicle A is 819.017 feet behind vehicle B. Vehicle A is traveling at 93.602fps and vehicle B is traveling at 44fps. How long until vehicle A catches vehicle B?
January 18, 2016

185+205+240+195+165 = 990 min 240-165 = 75 min
January 18, 2016

Physics
I'm not getting it, can it not be solved with info given. The difference between the two speeds is .247. .247*60*60/5280 = 0.16mph. vehicle per near stopped.
January 18, 2016

Physics
speed does not match the distance, let me rethink....
January 18, 2016

Physics
Vehicle A is traveling at 93.602fps and is 819.017 feet behind vehicle B. Vehicle A takes 8.75 seconds to overtake vehicle B. How fast is vehicle B traveling?
January 18, 2016

math
The perimeter of the base of a pentagonal prism is 45 cm. What is the width of the rectangular side of that prism?
December 7, 2015

Maths
If a unit is 465mm x 320mm how much will it cost for one unit if its priced at \$25 per metre squared
October 31, 2015

pseudocode
Create a class named Year that contains data fields to hold the number of months in a year and the number of days in a year. Include a constructor that sets the number of months to 12 and the number of days to 365, and get and set methods for each field. b. Design an ...
April 8, 2015

computer code
Create a Flowchart and pseudocode. Create a class whose main method creates three arrays. The first array will contain five kinds of flowers - petunia, pansy, rose, violet, and carnation. The second array will contain the cost of each flower, respectively, 50 cents, 75 cents...
March 21, 2015

Flowcharts and pseudocode
Create a class whose main method creates three arrays. The first array will contain five kinds of flowers - petunia, pansy, rose, violet, and carnation. The second array will contain the cost of each flower, respectively, 50 cents, 75 cents, \$1.50, 50 cents, and 80 cents per ...
March 20, 2015

physics
A bug starts walking away from the top of a spherical ball of ice and will start to slip when the normal force exerted on it drops to 1/2 of its weight. If the ice ball has a diameter of 34 cm, how far can the bug walk before it begins to slip?
March 1, 2015

Physics
A model helicopter and its load have a combined mass of 3.5 kg. Find the upward average force, in Newtons, exerted by the air if the helicopter is originally moving downward at 10 m/s and is brought to rest with constant acceleration in a distance of 50 m.
March 1, 2015

Programming Logic and Design
The Romance World Cruise Line provides special gifts and celebrations for passengers who are newlyweds, as well as for those who have been married more than 40 years. Design a flowchart and pseudocode for a program that accepts a couple's last name, ship cabin number, and ...
January 29, 2015

BUS 330
What three component parts are essential to a value proposition
December 6, 2014

Fluid Mechanics
Hello Can someone can give me good links where i can find the: 1)domestic 2)industrial applications of fluid mechanics ? Tnx a lot.
October 10, 2014

algebra
If 182 lbs of force keeps a 1500 lb car from skidding on a curve of radius 500 ft at 30 mph, what force would keep the same car from skidding on a curve of radius 800 ft at 45 mph
October 3, 2014

Science
If a nuclide has a decay constant of 10^-6 s-1 what is its half life ??? I think it is 0.693 / 10^-6 = 693000 or 6.93 x 10^5 Is this right ...
August 13, 2014

physics
If a nuclide has a decay constant of 10^-6 s-1 what is its half life ??? I think it is 0.693 / 10^-6 = 693000 or 6.93 x 10^5 Is this right ...
August 13, 2014

Algebra
Which of the following shows the expression written with a single radical? a) 3*2^(1/2); b) 3*2^(1/4); c) 6*2^(1/2); d) 6*2^(1/4)? The book says that the answer is d), but I do not understand why. They all look like single radicals to me!
June 4, 2014

chemistry
arrange the following 0.10M solutions in order of increasing (H+). NaBr NH4Cl LiCn
December 11, 2013

Economic
Why might a profitable motel shut down in the long run if the land on which it is located becomes extremely valuable due to surrounding economic development? What kinds of costs are involved in making a decision to shut down?
December 10, 2013

statistics
supply function p = 15x-900 demand function p = 2x + 530 find the point of equilibrium
September 20, 2013

Physics
What must the charge (sign and magnitude) of a particle of mass 1.48g be for it to remain stationary when placed in a downward-directed electric field of magnitude 670N/C ? What is the magnitude of an electric field in which the electric force on a proton is equal in magnitude...
September 3, 2013

Maths / physics
Thank you ....
August 27, 2013

Maths / physics
Calculate the rest mass (In grams) of an object whose rest energy is equal to the energy released by a tonne of tnt the energy liberated by 1 g of tnt = 4kJ Rest energy = moc 2 1 tonne of tnt equals 10^6 x 4kJ = 4 x 10^6 kJ x (3.0^8)sqrd = 3.6 x 10^23kJ is this right ?? i ...
August 27, 2013

Math
Sandra scored 60 on a test. The test scores were normally distributed, with a mean of 50 and a standard deviation of 10? Which of the following percentile ranges would contain Sandra's score? (a) 35-49 (b) 50-64 (c) 65-79 (d) 80-95
June 16, 2013

Math
Sandra scored 60 on a test. The test scores were normally distributed, with a mean of 50 and a standard deviation of 10? What would Sandra's score be?
June 16, 2013

physical science
you do 16,000 j of work on a 45 kg box intitally going 11.8 m/s. How fast is it going now?
May 20, 2013

math
General solution Cos^2 +3sin= -3
May 19, 2013

Pre-Calculus 11
In Triangle DEF, DE = 8cm and Angle D= 60 degrees. When EF = 7 cm, how many triangles are possible?
May 16, 2013

Pre-Calculus 11
In Triangle DEF, DE = 11cm and EF = 9 cm. For which measure of angle D is it possible to draw two scalene triangles.
May 16, 2013

Science
Using two or three well-developed paragraphs, describe how energy is transferred from the sun to producers and on to consumers. Provide at least one example.
April 24, 2013

math
Sarah is 8, Ricky is 13 age now age 3 yrs ago Sara x x - 3 ricky x + 5 (x+5)-3 so (x+5-3)= 2*(x-3) x+2=2x-6 x=8
April 5, 2013

math
no solutions, or empty set solve both equations for y: y >= -1.5x + 20 y <= -1.5x + 42.5 Same slope with different y-intercepts indicates parallel lines; Graph both, which shows the solution set: solutions for 1st equation are above the line, and solutions for 2nd ...
April 4, 2013

math
where's the rest of the problem?
April 4, 2013

math
Do you know how to use parentheses? I don't know if I should read your problem as written or how I think you intended it to be written. Ex: 5x divided by (x-2) would be written as: 5x/(x-2), not 5x/x-2.
April 4, 2013

math
It's not clear what you are asking. If you are dividing 2 by quantity [(1-x)*(1+x)], then your answer is sqrt3/3; where x does not equal 1 or -1 (that would induce division by 0).
April 4, 2013

math
cancel the y's, so answer is 7/(4y-1)
April 4, 2013

Math
Let x = days worked Let 30 - x = days not worked, so \$5.5 * x - \$6.6 * (30 - x) = 0 days worked = 16 and 4/11 days days not worked = 13 and 7/11 days. Goofy answers, as far as I'm concerned!
April 3, 2013

geometry
two solutions is correct, but the equation for a circle is: (x-a)^2 + (y-b)^2 = r^2; where (a, b) is the center of the circle, so (x-0)^2 + (y-1)^2 = 9 The points of intersection are: (1.836377228, 3.372281323) and (-1.836377228, -1.372281323)
April 2, 2013

Maths
18; for the six faces, the sums of opposing sides are 18 and 10, 14 and 14, and 18 and 10. I numbered the vertices as such: plane 7, 6, 1, 4; corresponding plane 0, 5, 2, 3
April 2, 2013

math
one pound; Each bag weighs 2 pounds. If the bag is 2/3's full, one additional pound will fill it.
April 2, 2013

math
d) 20; transitive property, so 2v + 10 = 1.6v + 18
April 2, 2013

math
a) (-4, 0); Find the slope of each set of points. Set up both equations, using the slope for each, in the form y = mx + b. Insert each slope. Use a point from each equation to determine the y-int for each (-4 and 8, respectively). Solve using systems of equations.
April 2, 2013

Alg 1
You have the correct answer. Use your calculator for your choices and see which one gives you the same answer: both 1st and last answers give the same answer, but the last one is the correct answer. By the way, you are correct in using the Pythagorean Theorem, which gives hyp...
April 2, 2013

math
Did you draw a picture? The distance between opposite corners of the walking path (rectangle, in this case) would be the hypotenuse of a right triangle. Thus, we can use the Pythagorean Theorem: HYP^2 = leg^2 + leg^2 Let x = length; 7x = width, so HYP^2 = x^2 + (7x)^2 HYP^2 = ...
April 2, 2013

math
Is this written correctly? Usually the height is longer than the width! Again, draw a picture. Another right triangle. Let x = height; let 2x = width. Using Pythagorean Theorem: hyp^2 = x^2 + (2x)^2 hyp^2 = x^2 + 4x^2 hyp^2 = 5x^2 take square root of each side: hyp = x * sqrt(5)
April 2, 2013

Math
Cynthia. Find the unit rate of each. 15 / 12 = 1.25 miles per minute. 26 / 20 = 1.3 miles per minute. The 1.3 is faster which means will arrive first.
April 2, 2013

math
There is a formula, called the standard future value formula: 54 * (1 + .025)^10 = future value = \$69.12
April 2, 2013

math
Today it costs \$54 to fill tank. In one year (per cent increase problem): (x - 54)/54 = .025, so x = \$55.35 in the next year: (x - \$55.35)/\$55.35 = .025, so x = \$56.73 Do this 8 more times, and you will get your answer: \$69.12 I used an Excel worksheet to generate the answer. ...
April 2, 2013

ALGEBRA!....
I mean 23^2 + 96 = 25^2
April 1, 2013

ALGEBRA!....
Got it! Initial population is 23^2, which = 529. 23^2 + 48 = 577 = 576 + 1, so 23^2 + 48 = 24^2 + 1, and 23^2 + 96 = 625, so 23^2 = 25^2 Did it by exhaustion with Excel. Check back later if I can do it algebraicly!
April 1, 2013

Math: Finding m<A
def of similar triangles: corresponding angles are equal. I always draw a picture. angle A = angle D = 45'
March 29, 2013

Geoometry Help: Find EF
You'll get there!
March 29, 2013

Geoometry Help: Find EF
EF = 32 Corresponding sides of similar triangles are proportional. Draw a picture. Make a proportion: 36/24 = 48/EF
March 29, 2013

Geometry: Student Correction (Stuck)
Need the setup info to verify whether the proportion is set up correctly. Solution of this proportion: x = (6 x 5)/4, so x = 7.5
March 29, 2013

geometry
Not enough information.
March 29, 2013

algebra
No difference, as long as you're consistent.
March 29, 2013

algebra
j:(4,0) is the only point that makes both statements true. To solve, substitute the values into the inequalities to determine whether it makes a true statement: 1) 0 < (1/2)* 4 + 4 0 < 6, which is a true statement 2) 0 > -(4) + 1 0 > -3, which is a true statement
March 29, 2013

maths
not enough information
March 29, 2013

math
First thing I do is draw a picture. Sur Area of the four walls = 2 x (height of wall x width) + 2 x (height of wall x length), which yields: 108 = 2 x (h x 5) + 2 x (h x 4). So height = 6 meters
March 29, 2013

Maths
ab = 75 Archaic solution: only possibilities for ab are 01 through 99. Eliminate all of those not divisible by 5, which leaves: 5, 10, 15, 20, 25, 30, 35, 40, 45, 50, 55. 60, 65, 70, 75, 80, 85, 90, and 95. Eliminate those not divisible by 3 (divisibility rule for 3) , which ...
March 29, 2013

Math
Let x=length; 70-x = breadth (x + 15) =(3)*((70-x) - 5) x + 15 = 3 * (65 - x) x + 15 = 195 - 3x 4x = 180 x = 45 70 - x = 25
March 28, 2013

Geometry
SA(cyl)=(Circumference*height)+ Area of Top + Area of Bottom: SA = (pi*9*24)+ 2*(pi*4.5^2)
March 28, 2013

Algebra
solving for 7t^2-14t+10>1000, we get: 7t^2-14t-990>0 use quadratic equation to get: t> (7+ sqrt(6979))/7; thus: t> ~12.93 years
March 28, 2013

algebra1
solving for 7t^2-14t+10>1000, we get: 7t^2-14t-990>0 use quadratic equation to get: t> (7+ sqrt(6979))/7; thus: t> ~12.93 years
March 28, 2013

Math
His initial speed was 68mph. Using Distance = Rate * Time, we get: Let r = speed for 6 hours, r-20 = speed for 5 hours, so: 648 = 6r + 5*(r - 20). Hope this wasn't in Wi because the max legal speed limit is 65mph!
March 27, 2013

college algebra
I apologize! I misread your equation. Multiply through by x^2 gives: 9x^2-8x-2=0. Use Quadratic Formula to get two solutions: (8+sqrt(136))/18 and (8-sqrt(136))/18. I checked, and both work!
March 27, 2013

college algebra
multiply everything by x^2-9, which gives you: -5(x+3)-3(x-3)=2 Have fun!
March 27, 2013

math
New point: (20, -28). Slope of line going through the origin and (5, -7) is -7/5, which makes the radius of that circle sq rt of 74, or (74)^(1/2). The new radius will be 4*(74)^(1/2). Assuming that the length of the x coordinate (and Y!) is proportional to the radius, that ...
March 27, 2013

Algebra
Please solve as polynomial to third degree: the product of three consecutive odd numbers is 6,783. What are the numbers? The solution being 17, 19, and 21, what are those numbers when considering: x*(x+2)*(x+4)=6,783? Multiplied out: x^3+6*x^2+8*x-6,783=0 What are the roots? ...
March 27, 2013

math
Factor(unfoil) the area to get: (2x-5)* (4x+9). When you divide that by the height, the result is the length of the base: (2x-5) Not sure if you're solving for x, but I don't think that there's enough information. Let me know if this helps you!
March 27, 2013

Math
factor out a 2: =(2x-5)(3x+2)-(2x-5)(2)(5x+4) factor out (2x-5): =(2x-5)[(3x+2)-2(5x+4)] simplify: =(2x-5)(3x+2-10x-8) =(2x-5)(-7x-6) and, if you want: =-14x^2+23x+30
March 27, 2013

Math
multiply the quantities of each list: 3*2*4*3=72 Hope he brought his cell phone along!
March 27, 2013

probability math
bill is on the school archery team. the target has a center bull's-eye and two rings around the bull's-eye. the table gives the probabilities of each outcome. what is the probability that bill will get the next arrow in the inner or outer ring?express your answer as a ...
March 18, 2013

probability math
bill is on the school archery team. the target has a center bull's-eye and two rings around the bull's-eye. the table gives the probabilities of each outcome. what is the probability that bill will get the next arrow in the inner or outer ring?express your answer as a ...
March 18, 2013

fractions
3/8 + 3/4 =
February 14, 2013

geometry
How many cubic meters of cement are required to cover a walkway 7 m long, 0.95 wide, and 10 cm deep?
February 13, 2013

geometry
The area of a circle 200mm in diameter is approximately how many times greater than the area of a circle 40mm in diameter?
February 13, 2013

ratios
A mother wants to divide \$680.00 among her children according to the ratio 2:4:6. The shares would be?
February 13, 2013

Geometry
A rectanglar school yard is 280 meters by 245 meters is to be fenced. How many meters of fencing will be required to fence it completely?
February 13, 2013

biology
biology is the study of what?
January 3, 2013

math
Explain why each survey question might lead to an erroneous conclusion 20. In a recent article, the author states that 71% of adults do not use sunscreen. Although 71% is a large percentage, explain why it could be misleading.
November 17, 2012

writing
I have been trying to work on this assignment and I am not really understanding it and I try to get help from my teacher and she keeps sending me this and telling me when I do this she will help me with the rest but I don't understand this and I have told her this and she ...
September 24, 2012

Post your answer to Study Question 5.2 on p. 180 (Ch. 5). As you read your classmates’ responses, consider the following scenario: If you compared two different companies that utilized two different valuation methods, how might the quality of the results differ? Also, ...
September 17, 2012

Macroeconomics
What happens to the equilibrium price and quantity of ice cream in response to each of the following? (Explain your answers). a. The price of dairy cow fodder increases. b. The price of beef decreases. c. Concerns arise about the fat content of ice cream. Simultaneously, the ...
September 15, 2012

algebra
10^4/5^2
September 13, 2012

Computers
Did you ever figure this out? Cause I need help on it if you can please.
September 3, 2012

economics
How does the expenditure approach calculate GDP? A. It adds up all the incomes in the economy. B. It adds up the value of four groups of final goods and services. C. It adds up the value of business goods and services. D. It adds up the value of consumer goods and services.
July 19, 2012

economics
I do my classes online and my book is online and it doesn't talk about this at all and i have done called and told my school but they will not fix it please help. Jean-Baptiste Say argued that entrepreneurs should be called the fourth factor of production because they A. ...
June 30, 2012

American Government
I am having trouble finding anything on this in my book Please help. A ______ is someone who is not in the military.
June 28, 2012

Programming Logic
Shemrock Inc. is a brake pad manufacturing company. This company uses raw materials, such as carbon powder, iron, ash, and resin. It wants to develop an inventory management system that will have the following features: 1.The system should store the current inventory levels ...
April 12, 2012

uop