Friday
April 29, 2016

# Posts by bob

Total # Posts: 2,926

SCIENCE
.) Iodine 131 is a radioactive waste product generated in nuclear power plants. It has a half life of 8 days. If 16 grams was released from the Fukushima power plant 32 days ago, how much is left now?
November 4, 2015

trig
An airplane is flying in the direction 148° with an airspeed of u = 920 kilometers per hour. Because of the wind, its groundspeed and direction are v = 820 kilometers per hour and 140°, respectively (see figure). Find the direction and speed of the wind.
November 2, 2015

math
Breanne and Alison finished a 5 km fun run. Alison finished 400 m ahead of Breanne. Breanne ran at an average speed of 7.2 km/h. What was Alison’s time for the race if she ran at a constant rate for the whole race?
November 1, 2015

HEALTH PLZ ITS OVERDUE
The answers are A, B, B, B, and again, B. Trust me, I did the assessment and got everything right.
November 1, 2015

Trigonometry
Rusty has a photograph that is 8 inches wide x 10 inches long. She wants to enlarge the photograph to make a poster that is 3 feet wide. How long will the poster be?
October 30, 2015

where did they get the 11ft?
October 28, 2015

Danika has a board that is 4 yards long. How much needs to be sawn off to make the board 2 feet 8 inches long? A) 1ft 4in B)9ft 4in C)8ft 6in D)2ft 6in
October 28, 2015

Vector resultant angles
F1 has a magnitude of 9N acting due west, and F2 has a magnitude of 12 N. I know the magnitude is 15 but I don't know the angle and how to calculate it. I need a lot of help for calculating resultant angles.
October 21, 2015

probability
Ivan rolls a dice he the rolls it again what is the probability that the first roll will be odd or the sum will be odd?
October 20, 2015

physics
A duck waddles 2.3m east and 7.0m north. what are the magnitude and direction of the ducks displacement with respect to its original position?
October 19, 2015

Physics
A child stands on a balcony directly above a friend 5.00 m below. Each throws a ball toward the other with the same initial speed of 10.0 m/s. If each catches a ball at the same instant, which child threw a ball first? How much later was the second ball thrown?
October 19, 2015

english
how do i spell english?
October 16, 2015

civics
In every stage of these Oppressions We have Petitioned for Redress in the most humble terms: Our repeated Petitions have been answered only by repeated injury.
October 15, 2015

Math
Brock has a 2 L bottle of iced tea. He poured an equal amount of the iced tea into 8 containers. How many milliliters did rob pour into each container ?
October 8, 2015

math
The middle school band has 56 members. The high school band has 96 members. the bands are going to march one after the other in a parade. the director wants to arrange the bands into the same number of columns. What is the greatest number of columns in which the two bands can ...
October 7, 2015

English assignment
Is there any lying to friend articles? I can't find anything.
October 6, 2015

English assignment
I'm trying to introduce dishonesty around the world in my first sentence of this paragraph. Around the world, there are many cases of dishonesty being committed in the form of lying, cheating and stealing. Is this sentence correct? Is it a good sentence to use as an ...
October 6, 2015

Pre Calculas
7. For the function defined by: f(x)= {x^2, x<=1} {2x+1, x>1} a. evaluate f(0) 8. Solve the following system of equations algebraically. Verify your solution either graphically or by using matrices. 3x-y=0 5x+2y=22 9. Solve the following system of equations algebraically...
October 6, 2015

English assignment
We have to write a one page reflection on honesty, I need help. What are some real world situations in which this value is being violated? What actions does your conscience call you to take to respond to real world situations in which this value is being violated (knowing that...
October 4, 2015

Physics
ayy lmao
October 3, 2015

Physics
Two stones are thrown simultaneously, one straight upward from the base of a cliff and the other straight downward from the top of the cliff. The height of the cliff is 6.41 m. The stones are thrown with the same speed of 8.35 m/s. Find the location (above the base of the ...
October 1, 2015

math
all multiples of 12
September 29, 2015

Physics
A car, moving along a straight stretch of high- way, begins to accelerate at 0.014 m/s2. It takes the car 23.2 s to cover 1 km. How fast was the car going when it first began to accelerate? Answer in units of m/s.
September 24, 2015

Vpe
Estimate to 70+146 and got 300 her estimate reasonable explain
September 21, 2015

Logarithm help
Write each expression as a single logarithm I need help really fast. I have to finish this by today. log4^3 + 1/2log4^8 - log4^2
September 19, 2015

Chemistry
I am really lost with this. Calculate the amount of energy released in kJ/mol for the fusion reaction of two 1H atoms to yield a 2H atom and electron: 1/1H+1/1H→2/1H+0/1e The atomic masses are 0/1e (0.0005486 u), 1H (1.00783 u), 2H (2.01410 u), and 3He (3.01603 u). I ...
September 19, 2015

Logarithm help
Use logarithms for these questions After every 10 pages of painting, the ribbon in the dot matrix printer loses about 0.5% of its ink. A) What percent of the ink is left in the ribbon after printing 100 pages and 1000 pages B) write an equation which expresses the percent p of...
September 18, 2015

Logarithm help
Solve to the nearest thousandth. 5^1+x = 2^1-x
September 18, 2015

Geometry
What about the last three c by the 180???
September 17, 2015

so i divide it by 60?
September 16, 2015

algebra
The wheels of a moving bicycle have 27-inch diameters, and they are spinning at 200 revolutions per minute. How fast is the bike traveling in miles per hour? 27*π*200=16964.6 1mi=63360in 63360/16964.6=3.73 I am not sure if i did it right
September 16, 2015

Math
So 10.25=0.05n+0.1d+0.25q n=3d q=4*d+1 Substitute d and q to the top equation So 10.25=0.05(3d)+0.1d+0.25(4*d+1) Distribute 10.25=0.15d+0.1d+1d+0.25 Simplify 10.25=1.25d+0.25 10.25-0.25=1.25d --> 10/1.25=d--> d=8 plug 8 back into the equations 3*8=n --> n=24 4*8+1=q...
September 16, 2015

Elementary Mathematics
2/5*7/10*9/10
September 12, 2015

Math
Solve this radical equation algebraically: 2x-5(sqrtx)-3=0
September 11, 2015

Pre Cal
Let me try again, because I keep getting something different. This is the problem: ( (2x^-4y-1)(2y^4z^-1) )^-2/2yx^3z^0 Can you please help me simply this. I didn't get what you got. Thanks.
September 7, 2015

pre cal
Can you simplify (2x^-4 y^-1 times 2y^4 z^-1)^-2/ 2yx^3 z^0 I got the numerator to be 16x^16 y^17 z and then divided by the denominator to get 8x^13y^16z
September 7, 2015

Pre cal
I didn't ask for the problem to be solved, just simplified. I know I shouldn't have used an x for a multiplication sign, sorry. My bad. Thank you. I found my error.
September 6, 2015

Pre cal
Simply the equation: 2x^4y^0z^2/(yz^2)^-2 x 2zx^2y^-4 Can you help? I got the denominator to be y^-6 x 2z^5 x x^2 When I solved it, I got x^2y^6/z^3
September 6, 2015

financial literary
this helped me none
September 6, 2015

Spanish
what did u get?
September 4, 2015

Physics
A speeding motorists passes a stopped police car. At the moment he passes, the police car begins accelerating at a constant rate of 4.4 m/s^2. The motorist unaware that he is being chased, continues at a constant speed until the police car catches him 12s later. How fast was ...
August 23, 2015

Algebra
while turning a city, you see a skyscrape and wonder how tall it is. You see that it is clearly divided into floors . You estimate that each floor is 20 feet high . You kill that the skyscraper as 112 floors .how tall is the skyscraper
August 22, 2015

Algebra
You go to a forest and measure the shadow of a tree as being 6 m long. The shadow of your meter stick is 2 m long .How tall is the tree ?
August 22, 2015

Math
its actually 15/52 because there are only 12 other hearts and 3 other aces.
August 10, 2015

History
July 23, 2015

History
Prior to 1954, if a state wanted to enact a program that separated individuals based on their race, but still provide both sets of persons equal services, what would the government have to demonstrate for this program to be deemed constitutional? A. it was necessary to promote...
July 23, 2015

algebra
A country's population in 1995 was 175 million. In 2000 it was 181 million. Estimate the population in 2020 using the exponential growth formula. Round you answer to the nearest million. P=Ae^kt
July 15, 2015

Math
Thank you Steve
July 13, 2015

Math
Barry is 6 yrs old.Larry is twice as old as Barry.Terry is the same number of years older than Barry as he is younger than Larry.How many years old is Terry?
July 13, 2015

physics
This one is bookwork. Google "Electric field generated by two point charges utexas" and the first link will help.
July 8, 2015

Physics
I want to calibrate a barometer using current pressure. I live in a town with altitude 540m (at the top of an escarpment) but the closest internet pressure readings are from a town which is 50m above sea level(at the bottom of the escarpment). Assuming the temperature varies ...
July 8, 2015

PHYSICS PLS HELP
What is her weight force? Use Newton's 2nd Law to find the unbalanced force which she will need to make her 50kg mass accelerate upwards. (remember, the acceleration is only upwards because it's caused by the unbalanced force acting on her in the opposite direction in ...
July 7, 2015

math
Sam is four years younger than Jo. But in five years' time Jo will be twice Sam's age now. How old are they now?
July 7, 2015

Math
Thank You.
July 2, 2015

Math
Mary is getting paid \$383.00 every two weeks at her job. How much does she make hourly? How would I figure this out?
July 2, 2015

Math
I think it's A. 15,000(0.986975)^10(12)
June 28, 2015

Math
You have a balance of \$15,000 for your tuition on your American Express credit card. If your APR is 21%, you make no further charges, and each month you make only the minimum payment of 3% of your balance, then the formula for the balance after t monthly payments is given by ...
June 28, 2015

Government
Iowa has to honor a marriage that was granted in Indiana. True False Im so confuse
June 16, 2015

science chemistry
A basic amino acid,arginine,has a molar mass of 174g.mol^-1.it has the following percentage composition:41,38% carbon, 18,39% of oxygen,32,18% of nitrogen and 8,O5% of Hydrogen.determine the molecular formular of arginine
June 14, 2015

math
If one bag of skittles contains 1 and 1/4 cups then how many bags of skittles would 12 cups of skittles be divided into?
June 11, 2015

geometry
May 28, 2015

Chemistry
A 50 ml sample of .150M Ch3CooH is titrations with .150 M NaOh solution. Calculate the ph after the following volumes of base have been added: 49 ml, 51ml
May 27, 2015

LA
Hey Ms.Sue, its pretty obvious what this site is used for. If you havent gotten that yet, then let me explain this to you: student give student answers, mostly from connections academy, and other online schools.
May 22, 2015

LA
I was not asking for anyone to just give me an essay a website was fine but now I got my answer
May 14, 2015

LA
In the play the importance of being earnest by Oscar Wilde. How are the characters jack and lager in developed through the use of dialogue? How are these characters similar? How are they different?
May 14, 2015

math
logb3=1.099 logb8=2.079 find logb216 i am just lost on what to do
May 11, 2015

Calculus
I BELEAVCE IT IS CORRECT
May 8, 2015

chemistry
select one acid, one base, and one salt and describe specifically how and where they are used in therapeutic processes.
May 6, 2015

math
6 minutes
May 5, 2015

science
thx Ms. Sue :)
May 5, 2015

science
Earth's energy sources include both nonrenewable and renewable resources. Name at least three sources of energy that could be used in your house. The describe the ideal energy source for generating most of your home's electricity, and explain why you chose that source...
May 5, 2015

chemistry
what is a mole
May 5, 2015

physics
X=V^2 / 2(mu)(9.8) X=4.1m
May 3, 2015

Chemistry
250.0 mg solid magnesium placed in 9.1 g aqueous zinc nitrate... What is the limiting reagent? I balanced the equation: Mg (s) + 2HNO3 (aq) -> Mg(NO3)2 (aq) + H2 (g) 250 mg 9.1 g
May 1, 2015

math
jamie is joining a music club as part of her 4-cd introductory package she can choose from 12 rock selection, 10 alternative selection 7 country selections and 5 classical selection if jamie chooses on selection from each category how many ways can she choose her introductory ...
April 29, 2015

math
2a-140
April 22, 2015

Does anyone have the answers to the test
April 21, 2015

math
A study of two types of weed killers was done on two identical weed plots. One weed killer killed 15% more weeds than the other. This difference was significant at the 0.05 level. What does this mean? A. The improvement was due to the fact that there were more weeds in one ...
April 17, 2015

math
If you have a twelve gallon bucket, a seven gallon bucket, and a six gallon bucket, how can you get exactly nine gallons into one bucket
April 16, 2015

algebra
the isotope has a very short life of 13 half-life days. estimate the percentage of the original amount of the isotope released by the explosion that remains 3 days after the explosion?
April 16, 2015

statistics
The distribution of B.A. degrees conferred by a local college is listed below, by major. Major Frequency English 2073 Mathematics 2164 Chemistry 318 Physics 856 Liberal Arts 1358 Business 1676 Engineering 868 9313 What is the probability that a randomly selected degree is not ...
April 16, 2015

biology
Ms. Sue, woyls it be B?
April 13, 2015

geometry
have 2 || lines C and d. lines intersect lines are a and b. On a, has 2 alternate interior <s 95 and x; 2 al. exterior <s 95 and 85 degrees. On b, consecutive interior <s 72 and y. What is x and y. Please explain reasoning in paragraph proof.
April 12, 2015

Integration
Integrate: ∫ x^2(x^2+1)sqrt(4-2x^3-x^4) dx
April 11, 2015

physics
A cat usually lands on its feet regardless of the position from which it is dropped. A slow-motion film of a cat falling shows that the upper half of its body twists in one direction while the lower half twists in the opposite direction. (See figure below.) Why does this type ...
April 10, 2015

Calculus
List x1, x2, x3, x4 where xi is the right endpoint of the four equal intervals used to estimate the area under the curve of f(x) between x = 3 and x = 5. 3, 3.5, 4, 4.5 3, 3.2, 4.6, 5 3.5, 4, 4.5, 5 3.25, 3.75, 4.25, 4.75 my answer was a because i kept getting numbers like 3, ...
April 3, 2015

math
1/4 of henry sticker is equal to 2/3 of daisy. difference in number of sticker each of them has is 135. how many stickers do they have in all?
April 2, 2015

math
Sam and Jill had 576 stamps in all. Sam gave 1/7 of his stamps to Jill. Then Jill gave 1/4 of the total number of stamps she now had to Sam. In the end, both of them had the same number of stamps. What was the difference in the number of stamps they each had at first?
April 2, 2015

math
Esth had five times as many cards as Rich. Esth gave 1/4 of her cards to Rich. Rich. gave 1/6 of his cards to Esth in return. In the end, Esth had 90 cards more than Rich. How many cards did Esth have at first?
April 2, 2015

Algebra 2
Use trigonometric identities to solve each equation for the given domain. sin 2θ = -cos θ for 0 ≤ θ < 2π *Anyone who has any idea which identity to use is welcome to help
April 1, 2015

Math / Algebra 2
Use trigonometric identities to solve each equation for the given domain. sin 2θ = -cos θ for 0 ≤ θ < 2π *Anyone who has any idea which identity to use is welcome to help.
April 1, 2015

algebra
The angle of elevation from the tip of the shadow to the top of the tree is 36°. Find the distance from the top of the tree to the tip of the shadow. Round the answer to the nearest tenth.
March 30, 2015