Friday
July 31, 2015

Posts by Maddie


Total # Posts: 240

Calculus
A box with a square base and no top is to have a volume of 32 ft3. What dimensions use the least amount of material (in other words what dimensions give minimum outside surface area)?
May 24, 2015

math
the areas of the rectangular faces are: 90, 54, and 60. What is the volume of the box?
April 29, 2015

math
a rectangle has an area of 48 square yards. For what whole number values of length and width will the rectang,e have the smallest perimeter?
April 29, 2015

math
for what whole number values of length and width will the rectangle have an area of 60 square yards and a perimeter of 38 yards?
April 29, 2015

PHYSICS PLEASE HELP
A very large firecracker explodes in the hallway into 3 fragments. Physics students rush to the scene to enrich their knowledge of the law of conservation of momentum. They report that Fragment 1: mass=1.23kg, v=8.70m/s, north Fragment 2: mass =2.60kg,v=6.10m/s,east fragment 3...
April 28, 2015

Physics please help
He drops a ninja ball device from a height of 10.0m. The mass of the enter device is 190g and the mass of the top (smallest) ball is 2.90g A) calculate the momentum of the device as it hits the ground (ignore air resistance) I know that this answer is 2.66 for sure B) if the ...
April 28, 2015

Math
Take a four digit number (abcd) and repeat it to make an eight digit number (abcdabcd). This eight-digit number always has at least three different prime factors, unless you start with a certain four-digit number. Which number is it?
April 15, 2015

Math
On Tuesday, Leslie spent 47 minutes on math homework, 39 minutes on science homework, 52 minutes on English homework, and 44 minutes on history homework. How much time did Leslie spend doing her homework on Tuesday?
April 6, 2015

PHYSICS HELP
Suppose the aliens watching the show are on the surface of Mars. Mass of Mars: 6.42 x 10^23 kg Radius of Mars: 3.394 x 10^6 m Calculate; A) the weight of a 40.0 kg alien on Mars B) the weight of 40.0kg alien on earh Earth-sun distance:1.50x10^11m Mars-sun distance: 2.28 x10^11...
March 26, 2015

Geometry
A 3-foot diameter wheel travels at a rate of 45 feet per second. How many seconds does it take for the wheel to make 100 turns?
March 19, 2015

Geometry
A wheel turns at a rate of 12 turns every 5 seconds. If the wheel travels at a speed of 225 inches per second, what is the wheel's diameter?
March 19, 2015

L.A.
Is 3 B?
March 11, 2015

L.A.
is 1. B? 2. A? 3. C? Thanks for the help!
March 11, 2015

L.A.
Can you help me please? Thanks!
March 11, 2015

L.A
Hey Callie can you help me with the some questions? Thanks
March 2, 2015

Statistics
Among the population of criminal justice students, the average score on the final exam was 74, with a standard deviation of 11.6. What is the probability of randomly selecting a student who earned an A (90 or better)?
February 27, 2015

social studies
Alright.
February 23, 2015

social studies
Confucius believed that society would do well if everyone always did his or her... A. duty*** B. prayers C. jobs D. best I think it is A
February 23, 2015

Social Studies
Come onnn my it's the last answer I neeeedd!!!
February 23, 2015

Stats
A basketball player makes 80% of her free throws. Recently during a very close game, she shot 5 free throws near the end of the game and missed 3 of them. The fans booed. What is the probability of her missing 3 (or more) free throws out of 5? Set up and conduct a simulation (...
February 8, 2015

Language Arts - Iambic Pentameter
She takes forever to answer one of my friends.
January 23, 2015

language arts
You really wanted Helper to get a bad grade? Stupid!!!
January 21, 2015

language arts
You stink Mrs.Sue!!! Just give the kid the stupid answer and be done with it.
January 21, 2015

language arts
Ms. Sue is no help. Anyway, the answer is C.
January 21, 2015

History
I'm writing a research paper and i need help finding out what these me on a website. • Timeliness: • Objectivity: • Writing Style and Mechanics: • Graphics: • Links:
January 18, 2015

Math
1. What is the range of the ages shown in the stem-and-leaf plot? 3|0,2 4|1,4,4,5 5|3,5,8,9 6|2,2,2,5,6,8 7|5,5,6 A. 4 B. 6--- My answer C. 34 D. 46 What is the median of the ages shown in the stem-and-leaf plot? 58 58.5 59---- my answer 59.5 What is the first quartile (Q1) of...
January 17, 2015

Chemistry
How to perform a pH Titration of 25 ml of 50 mM Phosphoric acid from pH 1 to pH 13 with 1 N NaOH (including standardizing the NaOH).
January 17, 2015

Literature
Thanks i got it now
January 17, 2015

Literature
but i still don't get it
January 17, 2015

Literature
yes
January 17, 2015

Literature
Dr. Martin Luther King spoke at the funeral of three of the little girls killed in the Birmingham bombing. In his eulogy, he said, “The innocent blood of these little girls may well serve as a redemptive force that will bring new light to this dark city.” He also ...
January 17, 2015

Literature
The civil rights movement consisted of many events, such as freedom rides and sit-ins. Some of the events, such as fires and murders, were violent and unsettling. But the killing of the four little girls in Birmingham is considered one of the most significant events. Why do ...
January 17, 2015

Physics
A boat crosses a river of width 115 m in which the current has a uniform speed of 1.84 m/s. The pilot maintains a bearing (i.e., the direction in which the boat points) perpendicular to the river and a throttle setting to give a constant speed of 1.1 m/s relative to the water...
January 16, 2015

physics
Calculate the force of gravity on a 16 kg mass at Earth's surface. The mass of Earth is 6. 1024 kg, and its radius is 6.4 106 m.
January 13, 2015

chemistry
matts moped holds 1.9 gal of gas how many milliliters is that show work
December 16, 2014

physics
A 78 g basketball is launched at an angle of 45.4◦ and a distance of 10.1 m from the basketball goal. The ball is released at the same height (ten feet) as the basketball goal’s height. A basketball player tries to make a long jump-shot as described above. The ...
November 20, 2014

socials studies 9
why do you think lawyers in the land claims trials refer to the royal proclamation of 1763 more than 200 years after it was proclaimed? I do not understand this question..
November 8, 2014

Physics
A billiard ball of mass m = 0.250 kg hits the cushion of a billiard table at an angle of θ1 = 58.8° and a speed of v1 = 28.4 m/s. It bounces off at an angle of θ2 = 71.0° and a speed of v2 = 10.0 m/s. (a) What is the magnitude of the change in momentum of the...
October 31, 2014

physics
A rocket blasts off from rest and attains a speed of 58.9 m/s in 14.4 s. An astronaut has a mass of 57.5 kg. What is the astronaut's apparent weight during takeoff?
October 28, 2014

Advanced algebra
The number of freshmen entering college in a certain year is 621. What type of data is 621? A. Discrete data B. categorical data C. Continuous data
August 18, 2014

Chem 1120
Oops, my problem states I2 is a gas. I forgot to include it. so does this change the equation?
July 13, 2014

Chem 1120
The KC for the reaction I2 --> 2I is 3.8 x 10 ^ -5 at 727 degrees C. Calculate Kc and Kp for the equilibrium of 2I -> I2 at the same conditions. I don't understand how to set up or solve this problem. I know Kc=[I]^2 / [I2] = 3.8x10^-5 for the first equation but I ...
July 13, 2014

gemotry
The coordinates of the endpoints of AB¯¯¯¯¯ and CD¯¯¯¯¯ are A(2, 3), B(8, 1), C(5, 2), and D(6, 5). Which statement about the line segments is true?
May 12, 2014

Math
Using these numbers, 2 4/9, 2 5/9, 2 6/9, 2 8/9, 3, 3 1/9, 3 3/9, 3 4/9 & 3 5/9. Build a square where the sum of every horizontal, vertical, and diagonal row is 9. The square has 3 rows across & 3 rows down for a total of 9 small blocks.
April 16, 2014

Maths
A debate team of 4 is to be chosen from a class of 29 where the order in which the members of the team are chosen does not matter. There are two twin brothers in the class. How many possible ways can the team be formed which will not include any of the twin brothers?
March 16, 2014

Language Arts
What is the simple subject in this sentence? These homes are built up from the bottom of the pond. a. these b. homes c. pond
March 12, 2014

Math
I have 10 dozen potatoes which must be equally divided into 20 bags. How many potatoes will be in each bag?
March 6, 2014

Math
an airplane is flying a compass of 340 degrees at 325 mph. A wind is blowing with the bearing 300 degrees at 30 mph. Find the component form of the velocity, and find the actual ground speed and direction of the plane.
February 28, 2014

Algebra 2
Why couldn't the chicken find her egg?
February 16, 2014

math
My numerator is 6 less than my denominator. I am equivalent to 3/4
February 11, 2014

math
thanks steve
February 11, 2014

math
My numerator is a prime number. The GCF of my numerator and denominator is 2. I am equivalent to 1/5.
February 11, 2014

math
Thank you so much chelle
February 11, 2014

math
My numerator is divisible by 3. My denominator is divisible by 5. My denominator is 4 less than twice my numerator. plz help very confused!
February 11, 2014

Math
How do I find a fraction equivalent to 3/4 with a numerator that is 6 less than my denominator.
February 11, 2014

chemistry
I still desperately need help guys! Homework due TOMORROW!
January 8, 2014

chemistry
Please explain, in simple English, why is milk a colloid?
January 8, 2014

Physics
Vector V1 is 6N along the negative axis. Vector V2 is 4.5 N and point 45 degrees north of the x axis. Find the x and y components of each vector and find the resultant R=V1+V2with the components.
November 26, 2013

physics
an eraser
November 26, 2013

Physics
A 2 g bullet flying at 390 m/s hits a 2.7 kg aluminum block at room temperature and embeds itself in the aluminum. After everything has come to equilibrium, how much has the entropy of the aluminum block increased?
November 26, 2013

physics
A 1700 kg car moving south at 19.5 m/s collides with a 2050 kg car moving north. The cars stick together and move as a unit after the collision at a velocity of 5.16 m/s to the north. Find the velocity of the 2050 kg car before the collision. m/s to the north
November 14, 2013

Science help! URGENT. Check answers
1. False 2. C 3. D That is all I know! sorry! hope these are useful!
October 21, 2013

Physics
Imagine that if you drop an apple from a certain height, its final speed is 20 m/s when it reaches the ground. If you throw the apple vertically downward from the same height with an initial speed of 20 m/s, what will be its final speed? I tried 2mgh=1/2mv^2 so that the mass ...
October 7, 2013

Physics
A spring has an unstretched length of 9.8 cm. The potential energy stored in the spring is V when the spring is streched to a length of 11.8 cm. What is the stretched length of the spring when its potential energy is 2.2 V? What compressed length will result in a potential ...
October 7, 2013

Calculus
Determine whether Rolle's Theorem can be applied to f on the closed interval [a,b]. If Rolle's Theorem can be applied, find all values of c in the open interval (a,b) such that f'(x)=0. f(x) = x^(2/3) - 1 [-8,8] I plugged in both values and found out that they both...
September 26, 2013

science
i think its c but i'm not sure science is not my strong suit. this one is difficult.
September 25, 2013

math
Hi! I'm Maddie. I need some help on my homework. Here are three problems I need help with: A bowl contains only red marbles, blue marbles and green marbles. The probability of selecting a red marble from the bowl is 3/13. The probability of selecting a blue marble from the...
August 21, 2013

Math
Assuming lambda=0.02 and t=50, compute P(2)
June 25, 2013

Math
What is the range of values of the probability of an event?
June 25, 2013

math
You want to put $4,000 in a simple interest account. It has a 2.5% annual interest rate. How long will it take you to earn $500 in interest?
May 27, 2013

Math
How do you add fractions??
May 14, 2013

physics
What would be the final temperature when 125g of 25 degrees Celcius water is mixed with 85g of 45 Degrees Celcius water? ( hint: Equate the heat gained by the cool water with the heat lost by the warm water.)
May 3, 2013

7th Grade Language- Arts Ms.Sue~!
I just did the test and got 100% 1: A 2: c 3: B 4: D 5: B
April 24, 2013

Math
How do you find the total number of maximum and minimum points of the function whose derivative is given by f^1(x)=x(x-3)^2(x+1)^4 ???
April 21, 2013

Chemistry
Calculate the pH at the equivalence point when 50 mL of 0.098 M propionic acid is titrated with 0.340 M NaOH. I tried solving for the volume of NaOH and them using the total volume and then plugging it in to [H+][A-]/[HA] and used the Ka value for propionic acid but it was not...
April 15, 2013

Chemistry
Calculate the pH of a buffer solution that contains 0.60 M NaH2PO4, and 0.26 M Na2HPO4.
April 14, 2013

Chemistry
The pH of an 0.0870 M solution of weak acid A is 2.20. The pH of an 0.0830 M solution of weak acid B is 4.07. The pH of an 0.0890 M solution of weak acid C is 5.13. Identify the three acids from among those listed below (the Ka values are listed in Appendix E of your textbook...
April 12, 2013

Chemistry
I'm not really sure how to go about doing this problem... What is the pH of a 7.40 x 10-3 M solution of NH4Cl? Help is appreciated! Thank you
April 7, 2013

algebra
write and inequality describing this region. will an 18 wheeler hold 71 refrig's and 118 tv's or will it hold 51 refig's and 176 tv's?
March 24, 2013

Chemistry
Awesome! Thank you
March 14, 2013

Chemistry
An aqueous antifreeze solution is 31.0% ethylene glycol (C2H6O2) by mass. The density of the solution is 1.039 g/cm3. Calculate the molality of the ethylene glycol.
March 14, 2013

Chemistry
Thank you :)
March 14, 2013

Chemistry
A solution of hydrochloric acid (HCl) contains 22.5% hydrochloric by mass. What is the molality of this solution I'm not sure how to start this problem...
March 14, 2013

Chemistry
maybe my homework set online is messed up because it is not taking either of these answers :( sorry. But thank you both for your help!
March 14, 2013

Chemistry
hmmm for some reason this did not work... How did you go about solving this problem? Could any of them be a tie?
March 14, 2013

Chemistry
Rank the following compounds in order of their solubility in water. (most soluble = 1 -- least soluble = 4)--Note that for the same solubility rank the same (a tie). (CH3)2CHOH HOCH2CH(OH)CH2OH CH3CH2OH (CH3)3COH
March 14, 2013

Chemistry
Thank you so much!
March 14, 2013

Chemistry
What is the molarity of nitrate ions in a solution containing 2.20 mg of Mg(NO3)2 dissolved in 7.35 L of water?
March 14, 2013

math
If x = 15 units, y = 7 units, and h = 4 units, then what is the area of the trapezoid
February 11, 2013

Algebra
Find the integers from 1 to 144 which are perfect squares and write the square root of each one.
February 5, 2013

Math
Ten boys are to share 3 3/4 pounds of candy equally. How much candy does each boy get?
February 3, 2013

Math
1). How many shelves each 2 3/4 feet in length can be cut from a piece of lumber that is 15 2/3 feet long?
February 3, 2013

Chemistry
What mass of CH4 is contained in a 443 mL sample of CH4 at −32◦C and 282 torr? Answer in units of g. I tried so many times and I don't get it!
January 16, 2013

Urgent language arts
True of false 1. In a persuasive essay, the thesis statement should represent an opinion. A. True B. False 2. The most common structure of a persuasive essay is A. Order of importance B. Chronological order C. Problem and solution 3. Which of the following is NOT a sentence A...
December 17, 2012

Stats Repost
0.057
December 17, 2012

trig
If tan y = -4/3 and y is in Q I'VE find cos 2y
November 27, 2012

trig
If tan y = -4/3 and y is in Q I'VE find cos 2y
November 27, 2012

math
a ship sail S 40 degrees W four 4 hours how do i figure out this question
November 27, 2012

math
A ship sail S 40 degrees W for 4 hours at 30 kph. make a scale drawing
November 26, 2012

Physics A
how much work is being done a bookshelf being pulled 5 meters at an angle of 37 degrees from the horizontal? The magnitude of the component of the force that does the work is 43 Newtons
November 21, 2012

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