Monday
February 8, 2016

Posts by LARRY

Total # Posts: 718

Algebra
HELP! I can't figure the formula out for this problem. a pitcher threw a baseball clocked at 90/mph. The pitcher’s mound is 60.5 feet from home plate. How long did it take, in seconds, for the ball to travel from the pitcher’s mound to home plate?
February 8, 2016

math
two standard fair 6 sided dice are rolled. What is the probability that their values will differ by exactly two
January 3, 2016

metreology lab
1. Saturated (cloudy) air at a temperature of 20 °C (68 °F) has a relative humidity of _________%. 2. Compute the relative humidity (RH) to nearest percent for each of the following atmospheric conditions: a. vapor pressure = 6 mb, saturation vapor pressure = 18 mb, RH...
December 31, 2015

Calculus
ok, I got it, it worked out for me to be the same thing as when I used u=cosx
December 23, 2015

Calculus
Integrate sinx(cosx)^2dx using the substitution u=sinx. I know how to do this using u =cosx, but not sinx. The next problem on the homework was the same question except it asked to use u=cosx, so there couldn't have been a mistake.
December 23, 2015

metreology
Wien’s radiation law says that the wavelength of most intense radiation (λmax) emitted by a blackbody is inversely proportional to the absolute temperature (T) of the object. The surface of the Sun radiates as a blackbodyat a temperature ofT=6000 kelvins so that the ...
December 22, 2015

metreology
Within the troposphere, on average, the air temperature decreases 6.5 Celsius degrees for every 1000 m increase in altitude (3.5 Fahrenheit degrees per 1000 ft.).Based on these atmospheric conditions, predict the air temperature outside an airplane cruising at 24,000 ft.if the...
December 22, 2015

Physics
A zebra sees a lion 300 m to his right. The zebra starts running at 25 KpH straight ahead to get away. At this point the lion launches himself on an intercept course at the zebra at a speed of 31 KpH. a. At what angle does the lion launch himself? b. If both animals continue ...
December 8, 2015

Physics
James Bond and the ever present bond girl are on a dirt bike escaping from a car load of bad guys. If we have the following conditions: James Bond’s mass is 84 Kg The Bond Girl is 48Kg The Dirt Bike’s mass is 113.6 Kg The tires on the dirt bike are 0.6m in diameter ...
December 8, 2015

math
If I have 220 gallons of vinegar, how can this be converted into pounds.
November 9, 2015

Math
If I have 220 gallons of vinegar, how can this be converted into lbs.
November 9, 2015

math
how do you convert pounds into liters?
November 3, 2015

math
A bottler company dilutes and mixes concentrated juice with carbonated water then fills the blended beverage into two-liter bottles Brand 1 - 81,000 two-liters Brand 2 - 62,000 two-liters Assume that the concentrate costs $66 per pound for both Brand 1 and Brand 2 and is used ...
November 2, 2015

math
concentrated juice costs $66 per pound, how much will be spent to fill 81,000 two-liters?
November 2, 2015

English/Poetry
Hi! So, I'm learning about Iambic Pentameter in class and i'm very confused. I'm supposed to pick a song and figure out the pentameter. However, I'm not sure if the song I chose, American Pie by Don Mclean, even has one. Like when I look at the first line...&...
October 10, 2015

physics
A watch manufacturer claims that its watches gain or lose no more than 8 s in a year. How accurate is this watch, expressed as a percentage? Express your answer using one significant figure.
September 4, 2015

Pre Algebra
Use multiplying by 1 to find an expression equivalent to nine fourths 9 4 with a denominator of 3232xx.
September 3, 2015

Math
For a given interest rate, simple interest varies jointly as the principal and time. If $3000 left in an account for 6 years earned interest of $1260, then how much interest would be earned in 7 years?
August 7, 2015

math
Yup, this question is weird. They say its a equilateral triangle when the sum of the cubes of the two sides are equal to the square of the third...
July 19, 2015

math
If an equithagorean triangle is an equilateral triangle in which the sum of the cubes of two sides is equal to the square of the third side, what is the perimeter of an equithagorean triangle? A. 0.5 B. 1.5 C. 4.5 D. 6
July 19, 2015

math
The coordinates of two of the vertices of a square are (0,0) and (0, -4). Of the following, which could not be the coordinates of the point where the diagonals of the square intersects? A. (2, -2) B. (-2, 2) C. (0, -2) D. (-2, -2)
July 18, 2015

math
What is the sum of the roots of (x-1)(x+2)(x-3) X ... X (x+98)(x-99)(x+100) = 0? A. -50 B. 50 C. -100 D. 100
July 18, 2015

math
It's 4PM. If my raft leaves for Hawaii in h hours, where h is the sum of all integers x which satisfy ≤ x^2 ≤ 81, then my raft leaves for Hawaii at A. 4 PM B. 2 PM C. noon D. 8 AM
July 18, 2015

math
I don't get this question at all. These few questions are the only ones I need help with since I don't get it at all.
July 13, 2015

math
There is on real number x for which |x+1| - |x-1| = A. 4 B. 1 C. 0 D. -2
July 13, 2015

math
Which of the following is divisible by 6 when n is any integer? A. (2n+3)(3n+2) B. n(n+1)(n+2) C. (2n+3)(3n-2) D. n(n+2)(3n+6)
July 13, 2015

math
Yes, thanks! Can you help out with the other questions?
July 13, 2015

math
If xy+2x+3y+4=5, then y= A. 1-2x/3 B. 1-2x/x C. 1-2x/x+3 D. 1-3x/xy+3
July 13, 2015

math
If x+1995 represent the smallest of 1995 consecutive odd integers, then ? represents the 1995th of these same odd integers. A. x+3989 B. x+3990 C. x+5983 D. x+5985
July 13, 2015

math
Al and Alice went to a "being a Snack" party. Al spent 10 pennies + 16 dimes. Alice spent as much as Al, but her 26 coins consisted of only quarters and nickels, How many nickels did Alice spend?
July 13, 2015

math
1) p=-50 2)720
July 8, 2015

6TH GRADE MATH
Owen is fishing from a dock. He starts with the bait 2 feet below the surface of the water. He reels out the bait 19 feet then reels it back in 7 feet. what is the final position of the bait relative to the surface of the water? Write an expression to represent the situation. ...
June 24, 2015

Statistics
X 0 1 2 3 4 5 6 7 8 P(x) 0.05 0.1 0.3 0.1 0.1 0.1 0.1 0.1 0.05 =As the manager you check the cashier ( to see if you need to open a new cashier line). What is the probability that you find exactly 2 people waiting in line? please need to know how to solve it
June 17, 2015

Algebra 1
A square purple rug has a blue square in the center. The side length of the blue square is x inches and the purple region is 8 in. What is the area of the purple part.
April 13, 2015

Economics
A used car dealer bought a 1998 Volvo for $1,000. He paid a worker $200 to wash it. He purchased four tires for a total of $400 to replace the existing tires on the car. He sold the car for $4,000. All these economic activities took place in 2011. The used car dealer's ...
April 5, 2015

Economics
Here is Mrs. Baker's revenue and expenses for 2014: Revenue from sale of bread = $65,000 Cost of materials (such as sugar, yeast, baking soda, etc.) = $15,000 Wages paid = $20,000 Rent paid = $10,000 Mrs. Baker's contribution to the 2014 GDP was what? I'm confused ...
April 5, 2015

math
A student athlete runs 3 1_ 3 miles in 30 minutes. A professional runner can run 1 1_ 4 times as far in 30 minutes. How far can the professional runner run in 30 minutes?
March 5, 2015

stats
A box contains 10 red balls and 20 blue balls. Three balls are selected at random one after the other from the box, without replacement. If the first two balls selected are both blue, what is the probability that the third ball selected is red?
February 7, 2015

physics
I was wrong i meant, 6)- 200
January 27, 2015

physics
Two towers(the towers are the same) are built next to each other. the distance between them is d and there height is 10,000d. a ball is thrown horizontally from one tower to the other with spped v=sqrt(gd/2). assuming the ball collied elasticlly with the wall, therfore his ...
January 27, 2015

Math
Although I am positive you are correct on the 8y part being +8y
December 8, 2014

Math
I found the answer to be y = (9x+9) / (10x+8) Please check to see if this is actually the correct answer.
December 8, 2014

Math (Correction?)
10xy-9x = 9-8y Wouldn't bringing 8y to the other side be 10xy+8y = 9+9x? not 10xy-8y = 9+9x
December 8, 2014

Math
f(x) = (9-8x) / (10x-9) f^-1(x) =
December 8, 2014

algebra
Develop a tree diagram for tossing two, eight-sided gaming dice to figure out how many possibilities there are. Discuss the purpose of using such a visual in working out probability.
November 30, 2014

Physics
The angular velocity of a wheel is given by w(t) = (2.00 rad/s^2)t + (1.00 rad/s^4)t^3. A. What is the angular displacement of the wheel from time t=0.00s to time t=T? B.What is the angular acceleration of the wheel as a function of time?
November 23, 2014

Physics
The angular velocity of a wheel is given by w(t) = (2.00 rad/s^2)t + (1.00 rad/s^4)t^3. A. What is the angular displacement of the wheel from time t=0.00s to time t=T? B.What is the angular acceleration of the wheel as a function of time?
November 23, 2014

Math
5/6 + 1/3 + 7/12
November 20, 2014

MATH!!!
4(1.5c+6)+-2c=-9
November 19, 2014

Math
sin theta = 8/17 and theta is in the second quadrant. Find sin(2theta),cos(2theta),tan(2theta) exactly sin(2theta) cos(2theta) tan(2theta)
November 14, 2014

Math CHECK!
I believe that it would be 25 / cos^2 theta but I am not entirely sure. or would i just add both
November 14, 2014

Calculous
Evaluate sin(theta) and cosine (theta) for the angle theta The graph gives you a point of (0.6,-0.8) on the x y coordinate plane with a radius of what appears to be 1 ( unit circle ) sin (theta) = cos (theta) =
October 31, 2014

Math
How do i find the length of a projection of a vector A=3x+y+2z on the xy plane? and how do i find the unit vector in the xy plane that is perpendiculer to vector A?
October 31, 2014

Math
a) prove the identity: Ax(BXC)=B(A*C)-C(A*B) A,B,C vectors x- cross product *-dot product b) use part a) to prove that cross product is not associative.
October 31, 2014

physics
How do i find the length of a projection of a vecor A=3x+y+2z on the xy plane? and how do i find the unit vecotr in the xy plane that is perpendiculer to vector A?
October 30, 2014

physics
How do i find the length of a projection of a vecor A=3x+y+2z on the xy plane? and how do i find the unit vecotr in the xy plane that is perpendiculer to vector A?
October 28, 2014

math
What to Do: Consider the following, and then do the calculations to solve (formulas and concept explanations in the book). Your business provides a service to local residents. Your fixed costs are $2,000 per month, and you expect 40 customers per month. The variable cost ...
October 24, 2014

math
Your business provides a service to local residents. Your fixed costs are $2,000 per month, and you expect 40 customers per month. The variable cost associated with each service is $35. 1. Using cost-based pricing and a markup of 20%, what should the price be? Show ...
October 24, 2014

math
What to Do: Consider the following, and then do the calculations to solve (formulas and concept explanations in the book). Your business provides a service to local residents. Your fixed costs are $2,000 per month, and you expect 40 customers per month. The variable cost ...
October 24, 2014

math
Your business provides a service to local residents. Your fixed costs are $2,000 per month, and you expect 40 customers per month. The variable cost associated with each service is $35. 1. Using cost-based pricing and a markup of 20%, what should the price be? Show ...
October 24, 2014

hw
A railroad car of mass m = 30000 kg moving at v1 = 2.9 m/s collides and couples with two coupled railroad cars, each of the same mass as the single car and moving in the same direction at v2 = 1.711 m/s. What is the magnitude of the kinetic energy lost in the collision? Answer...
October 14, 2014

hw
A 30-06 caliber hunting rifle fires a bullet of mass 0.00829 kg with a velocity of 662 m/s to the right. The rifle has a mass of 3.7 kg. What is the recoil speed of the rifle as the bullet leaves the rifle?
October 14, 2014

physics
A force of 3.25 N acts on a(n) 3.8 kg object for 16.5 s. What is the object’s change in momentum?
October 14, 2014

Calc
I need help finding the correct formula after finding the doubling time and continuous percentage. I got the doubling time of 24 days and the continuous percentage of 2.89%. Homework asking use the doubling time to find the continuous percent growth rate and give a formula of ...
October 3, 2014

Science
Help me unscramble the words acnsrl spgei
September 14, 2014

Research Methods
I have been racking my brain around standard deviation. I came to the conclusion it being a measurement of scores that entails a range of high or low due to the scores or variables. My question is: Why normality is required for standard deviation applicability?
July 30, 2014

math
Rich is 1.5 meters tall and cast a 0.75 meter shadow. At the same time a nearby flagpole cast a 3 meter shadow. How tall is the flagpole?
May 21, 2014

Algebra Help!
1.) The chief designer for a large automobile company is considering 4 different radiator grills, 2 different style of headlights, and 5 different rear fender designs. If an automobile style consists of a grill, headlight, and rear fender, how many different styles of ...
May 8, 2014

Math Help!
1. Find the 4th term in the binomial expansion.(2x + 3y)^6 2. Use synthetic division and the remainder theorem to find P(a). P(x)= x^5 + 3x^4 + 3x − 7; P(-1) 3. Factor the expression on the left side of the equation. Then solve the equation. x^6 + 128x^3 + 4096 = 0 4.) ...
May 8, 2014

Math 120
Drop a stone in a well, the sound is heard 17 seconds later. How deep is the well in feet
April 27, 2014

psychology
Traumatic events do not always result in a diagnosable psychological disorder What factors determine how a person may be affected by one such event?
April 18, 2014

Math
28+7=38 35-28=7
March 1, 2014

Math
The sum of two numbers is 35 and their difference is 7. What are the two numbers?
March 1, 2014

math
rene put 2 blue marbles, 2 green marbles, 2 red marbles and 2 white marbles in a bag, if Rene takes 1 marble out of the bag without looking, what is the probability of rene drawing a blue marble?
January 30, 2014

math
Find the next two numbers 6,12,9,18, 15 ___ ____
January 22, 2014

Social study
In the election of 1860 thr --- won the election votes of all the free state except a fraction of the New Jersey votes
December 27, 2013

chemistry
This is a simple stochiometric question first convert to grams using density. 2813(mL)*1.45(g/mL) = 4078.85g then convert this to moles of Nitroglycerin (requires molar mass) (4078.85g)/(227.087g/mol)= 17.96mol of C3H5N3O9 Next, use your mol ratios to convert to moles of M2 (...
December 15, 2013

Algebra 1 (Reiny or Kuai)
Hij gxtxt j. Ycg DIY I c. FDIC icy fix cig. GUI g,7 if. Go. Ty. G u yuc u. Uh c y yuck. U uuvugugv hub u uuvu y out u. UFO. Fig gxtxt cough y y y h yuc yucky tactic tvtc tort guff ft
December 9, 2013

math
how to find out y intercept on a graph and slope of the graph
October 29, 2013

descrete and combinational math
How do i write (x+ y /(z^2 + 3) )-xy as a polish notation ?
October 28, 2013

Intro to Computers
In computing, a single byte represents a. one unit of disk space b. a pixel on the monitor c. an on or off electronic switch d. a character of data
October 11, 2013

physics
How much work does the force of the pole do on the boat during the displacement?
October 11, 2013

physics
A boat of mass 120 kg floats in a stream. You push on the boat with a pole, exerting a force of (175 i hat - 145 j hat) N. The boat moves through a displacement dvec = (23.0 i hat - 8.0 j hat) m along a straight line.
October 11, 2013

Statistics
You are dealt a hand of three cards, one at a time. Find the probability that your third card is your first jack. A) 0.068 B) 0.145 C) 0.127 D) 0.077 E) 0.00018 How do I set this problem up?
October 5, 2013

Statistics
In an Intro Stats class, 57% of students eat breakfast in the morning and 80% of students floss their teeth. Forty-six percent of students eat breakfast and also floss their teeth. What is the probability that a student from this class eats breakfast given they floss their ...
October 4, 2013

Statistics
You are dealt a hand of three cards, one at a time. Find the probability that your third card is your first jack. A) 0.068 B) 0.145 C) 0.127 D) 0.077 E) 0.00018
October 4, 2013

Statistics
A package of self-sticking notepads contains 6 yellow, 6 blue, 6 green, and 6 pink notepads. An experiment consists of randomly selecting one of the notepads and recording its color. Find the probability that a green notepad is selected given that it is either blue or green. A...
October 3, 2013

math
All your answers are wrong. I suggest you do some research and find out the definitions of deductive and inductive reasoning and the differences between them. 1. Deductive 2. Inductive 3. Inductive
September 28, 2013

math
64*15 = 12n let n be number of workers divide both sides by 12 (64*15)/12 = (12n)/12 80 = n thus it takes 80 men to complete the job in 12 days.
September 28, 2013

Science
(kg*m/s2)/(m/s2) The m/s2 cancels out. Answer: kg
September 27, 2013

phyics
A car is traveling at a constant speed of 31.8 m/s on a highway. At the instant this car passes an entrance ramp, a second car enters the highway from the ramp. The second car starts from rest and has a constant acceleration. What acceleration must it maintain, so that the ...
September 24, 2013

Algebra, easy problem
Find the value of k so that the line containing the points (−4,1) and (k,−2) is perpendicular to the line containing the points (−9,5) and (−5,0).
September 14, 2013

physics
a crane drops a 1.0 kg steel ball onto a steel plate. the ball's speed just before impact is 2.0 m/s. if the average impact force is 300 N, and the ball is in contact with the plate for 0.01 seconds, what is the bounce back speed right after the impact.
July 8, 2013

physics
a cannon with mass of 2000kg fires a 10kg shell at an angle of 60 degrees above the horizontal. if the recoil velocity of the cannon across the level ground is 0.5 m/s what is the velocity of the cannon ball.
July 8, 2013

physics
a 1000 kg car with an average power of 100 kw accelerates from 0 to 50 m/s. how long does it take to accomplish this
July 7, 2013

math
___% of 3.75 =2
May 31, 2013

math
Solve for x sin2x=cos(x+30)
May 19, 2013

Algebra
An advertising agency conducted a survey and found that the number of units sold, N, is related to the amount a spent on advertising (in dollars) by the following formula: N = 6,500 + 400 ln a (a ≥ 1) How many units are sold after spending $1,000? (Round your answer to ...
May 9, 2013

math
776÷ (1/4 + 1/5)
May 3, 2013

chemistry
How many grams of dichloromethane result from reaction of 1.60 of methane if the yield is 48.8 ?
April 9, 2013

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