Wednesday
April 16, 2014

Posts by bob


Total # Posts: 2,358

Algebra
Is the Riemann Hypothesis correct? Why or why not? Please show your work.

Math
Find the length of the arc (sector question) Radius=8cm Angle=27

math
Determine the vertex and the axis of symmetry for the function below: y=-4x^2-24x-36

math
A quadrant has an area of 175m2. Find the length of its base

Physics
A rocket moves upward, starting from rest with an acceleration of 28.1 m/s2 for 5.21 s. It runs out of fuel at the end of the 5.21 s, but does not stop. How high does it rise above the ground?

Math
I checked the question again but that is all it wrote

Math
In one revolution a wheel moves forward a distance equal to its circumference. This is because the wheel Always in contact with the floor. 1)A trundle wheel clicks everytime. What is the radius of the wheel

Math
The diameter of a bicycle wheel is 65 cm How many revolutions are needed to make the bike travel 2km

Math
Then would the answer be 43.98???

Math
A running track has 8 lanes each a meter wide.Each"straight" is 100 meters long. The distance around the track for someone running in the middle of the inside lane is 400 meters. What is the distance around the track for someone running in the middle of the outside l...

business
The type of accounting concerned with providing information and analyses to managers within the organization is referred to as

adv algebra hw
Let x,y,z be positive real numbers such that: xyz=945 x(y+1)+y(z+1)+z(x+1)=385. What is the minimum possible value of z+y/2+x/4?

science
What is a possible hypothesis that could be tested in the Atomic Theory lab?

chem
How many grams of NH3 are required to make 52.7g H2O in the following reaction : 4NH3+6NO->5N2+6H2O

chem
Correction!! in the question its **12CO2**

chem
Help a brother out!!! please!!!Nitroglycerin, C3H5N3O9 decomposes to form N2,CO2,H2O, and O2 4(C3H5N3O9)-> 6N2+12O2+10H20+O2 a)How many grams of water would be produced if 75g of nitroglycerin decompose? b)The creation of 3.89 moles of C02 would require how many grams of ni...

us history
Compare and contrast the goasl and strategies of the Reconstruction of TWO of the following -President -Lincon -Johnson -Congressional Republicans

us history
Describe the long-term political and economic effects of the Reconstruction and southern reaction on African Americans

us history
Explain whether slavery or representation was the main cause of disunion. You may incorporate two of the following to support your answer -The Missouri Compromise -The Free-Soil Movement -Compromise of 1850 -Kansas-Nebraska Act, 1854 -Bleeding Kansas Dred Scott v. Sandford

us history
Analyze the ways that the Free-Soil movement influenced U.S politics from 1820-1860. Explain the significance of this movement.

physics
if you are stuck in the middle of a frictionless frozen lake with only your backpack, how can you get back safely to solid ground?

physics
if you are stuck in the middle of a frictionless frozen lake with only your backpack, how can you get back safely to solid ground?

physics
if you are stuck in the middle of a frictionless frozen lake with only your backpack, how can you get back safely to solid ground?

Biology
False

computers
Networks are often set up in the client/server network arrangement. Raheem has learned that this is a very common type of network arrangement. Discuss two things that Raheem should be concerned with if he decided upon a client/server network arrangement?

Algebra
It was such a vile inn

geometry
If BC = 16 and AC = 29, find AB.

mitx 8.01x Classical Mechanics
4.981

college math
lol this isn't "college math"; but the answer otherwise is 63+6 because(-9)(-7)=63

college math
answer is -25

Math
Alright I got it thanks so much!!

Math
Okay, I'm in a calculus class but stuck on some algebra...it's not crucial that I get the answer to this but I'm wracking my brain because I can't remember how the following is obtained; if you can show me how this is done in steps I'd greatly appreciate it...

Statistics / Business
According to the National Humane Society, "Stray Cost" or the cost of the care and feeding for a stray dog is $419.00 per year. This amount does not include veterinarian care, but only food, water and shelter. It was found that the standard deviation of this "St...

law
Yes there are some issues

computer science
Write the " 7−2" expression so that no answer includes negative exponents. Assume the variables are nonzero

main ideas
Scientists generally agree that Earth is getting warmer due to what's called the greenhouse effect. A greenhouse used for plants stays warm because sunlight and heat coming through the glass roof are mostly trapped. The heat doesn't radiate back into the atmosphere bec...

algebra 1
the monkey stole my banana

PSP
The sentence "P ¨ Q" is read as (Points : 1) P or Q P and Q If P then Q Q if and only

math
Find the remainder when 33! is divided by 37. Please give full solution.

eng
Imagine that there is a fire in your house or apartment, and you only have 5 minutes to grab your possessions and get out. Everything you leave behind will be destroyed. What would you grab? Why? When you think about what you left behind, are you sad that you lost it or happy ...

statistic
A die is rolled 600 times. The face with six spots appears 112 times. Is the die biased towards that face, or is this just chance variation? The null hypothesis is: he null hypothesis is The die is biased towards the face with six spots. The chance that the face with six spots...

problem solving
How much space does the dining area take up? 100 guests, each guest requires 3m2 in the dining area, the average mass of each guest is 65 kg, and the average density of the dining area is 10kg/m2 How I can resolve this problem?

problem solving
100 guests each guest needs 3 m2 of space average density of the area is 10kg/m2. how much space does the dining room take up?

Physics (help steve)
A thin aluminum ring hangs vertically from a torsion spring. A torsion spring when twisted exerts a restoring torque given by τ=−κθ where θ is the angle of twist. Suppose that the ring undergoes small torsional oscillations while it is being cooled do...

physics
In the following figure m_1 = 20.0kg kg and á alpha = 50.9 ∘ ^\circ. The coefficient of kinetic friction between the block and the incline is ì k = 0.40 What must be the mass m 2 of the hanging block if it is to descend 9.00m m in the first 3.00s s after th...

Math (please help steve)
The Chicago Art Museum's Renaissance display consists of four hallways bordered around a square courtyard. A single guard is assigned to patrol the four hallways. When the guard starts working, he begins in one of the corners and walks clockwise. When he arrives at a subse...

Calculus (help steve)
But thanks for all the help.

Calculus (help steve)
It's not right either. I know, I'm stumped too.

Calculus (help steve)
Thanks Steve. But apparently, that's not the right answer, since a and b are not local minimum and maximum values.

Calculus (help steve)
f(x)=−8x^3+6ax^2−3bx+4 has a local minimum at x=1 and a local maximum at x=3. If a and b are the local minimum and maximum, respectively, what is the absolute value of a+b?

Math (Limits)
(1,0) is a point on the parabola y=2x(x−1). From point A, point P is moving along the curve towards the origin O(0,0). As P→O, sec^2∠APO→N, where N is a positive integer. What is the value of N?

Math (Calculus)
A(1,0) is a point on the parabola y=2x(x−1). From point A, point P is moving along the curve towards the origin O(0,0). As P → O, sec^2∠APO → N, where N is a positive integer. What is the value of N?

Physic
please check your question, kinetic energy is not measured in kg, it's measured in joules

physics
1/2mv^2=1/2(8)(12)^2=576

math
Anne wants to tie a support line from the top of a 50 foot radio tower to an anchor spot 30 feet from the tower’s base. Approximately how long will the line need to be?

Math
Determine the digits of Y from these clues. The digits of Y add to 18. The first digit is 3 times the third digit. The second digit is 2 times the third digit. Y is a three digit number.

Physics
Optical fibers are devices used for guiding light in many applications, most notably for fast communication. A fiber consists of a glass cylinder surrounded by a wall covered in a special coating. The fibers work on a principle called total internal reflection: light enters th...

Math
835

Math
Thanks

Math
γ is a permutation on eight elements, though you are not told which permutation it is. If γ is applied to an 8-element set, what is the minimum number of additional timeswe must apply γ to the resulting set in order to guarantee the set is back in its original c...

Math
ABC is a triangle with ∠BAC=60∘. It has an incircle Γ, which is tangential to BC at D. It is given that BD=3 and DC=4. What is the value of [ABC]^2?

Math
In first gear, or low gear, an automobile's engine runs about three times as fast as the drive shaft. In second gear, the engine does not have to run as fast; usually it runs about 1.6 times faster than the drive shaft. Finally, in third, or high gear, the engine runs at t...

Math
I = E/R A car has a 12 volt battery. The engine has a resistance of 0.22 ohms. How many amps will be drawn from the battery when the key is turned? I (to the nearest hundredth) = amperes

Math
plz answer it, i need to know by tonight

Math
Triangle ABC has ∠A=40∘, ∠B=60∘, ∠C=80∘. Points M,N trisect the side BC and points P,Q trisect the side AC. The lines AM,AN,BP,BQ intersect at the points S,T,U,V as shown in the figure below, dividing the triangle into 9 regions. Determine t...

physics
According to the Guinness Book of World Records, the longest home run ever measured was hit by Roy “Dizzy” Carlyle in a minor league game. The ball traveled 188 {\rm m} (618 {\rm ft}) before landing on the ground outside the ballpark part a Assuming the ball's in...

math
how do you add, subtract, multiply, and divide fractions

English
She could have been an Olympic figure skater, but she has quit practicing. What is the linking verb in the sentence?

Physics
While Driving Around A Curve Of 200 M Radius, You Notice That The fuzzy dice Hanging From The Rear-view Mirror Hangs At An Angle Of 15 Degree To The Vertical. 1.) What is the force diagram for the dice? 2.) What are the equations of motion in the horizontal and vertical direct...

Physics
2

law
thank you for being so specific

law
what does it mean when Steven said The case has nothing to do with 'disagreeable ideas' in the Texas v Johnson case?

math
sorry for before it is my first time using this website and this is the real question in a geometric series t1=23,t3=92 and the sum of all of the terms of the series is 62813. How many terms are in the series?

math
in a geometric series t1=23,t3=92 and the sum of all of the terms of the series is 6813. How many terms are in the series

math
In a geometric series, t1=12 and s3=372.what is the greatest possible value for t5?

geometry
the surface areas of two similar solids are 340 yd2 and 1158 yd2 the volume of the larger solids is 1712 yd3 what is the volume of the smaller solid?

math
find two numbers in the ratio of 2 to 5 that have a sum of 119.

Math
resolve the vector v=[7, 9] into rectangular components, one of which is in the direction of [6, 2]

Math
Name 3 consecutive odd integers (X,X+2,X+4) The difference between 2X and X+4 =(X+2)-24 Can you show HOW to solve?

Social Studies
#2-C #3-D

algebra!!!! please help me!!!!
@Steve it's not √2+√3+√5,,, it's √(2+√3+√5)...

algebra!!!! please help me!!!!
A number is called algebraic if there is a polynomial with rational coefficients for which the number is a root. For example, √2 is algebraic because it is a root of the polynomial x^2−2. The number √(2+√3+√5)is also algebraic because it is a root...

statistics
So, trying to cheat on your edx exam? You'll only feel bad. Go back to the notes and work it out.

LA
help please

LA
I don't know:(

LA
2.what is the description of the theme of article lottery winners who lost their millions? A: many lottery winners have lost their money. B:money is the key to the American dream. C: sudden wealth can cause problems.

math
Idk

physics
A person takes a trip, driving with a constant speed of 92.5 km/h except for a 20.0 min rest stop. If the person's average speed is 71.2 km/h, how much time is spent on the trip and how far does the person travel?

math
Points A and B are on the top and bottom edges of a cylindrical roll of paper of height 8 and circumference 12. A and B are diagonally opposite each other. The paper is cut along line C and opened out. How far apart are A and B on the flat surface?

Math algebra
Let N be the sum of all positive integers q of the form q=p^k with prime p, such that for at least four different integer values of x from 1 to q, x^3−3x≡123(modq). What are the last 3 digits of N?

English II
"Base Details" If I were fierce, and bald, and short of breath, I’d live with scarlet Majors at the Base, And speed glum heroes up the line to death. You’d see me with my puffy petulant face, Guzzling and gulping in the best hotel, Reading the Roll of Honou...

Life science
How does the sun allow you to Run the mile

Math
An elevator named L in "63 Building" in Seoul is notorious for its low speed. It takes 3 seconds for L just to move one floor. It takes another 20 seconds for it to have its door open and close automatically. What is even more frustrating, is that the elevator travel...

Math
A woman rides her bicycle from her house to and from a lake. It takes her 1 1/2 hours to ride to the lake and 1 3/4 hours to ride back. She rides downhill at 12 kilometers per hour, on level ground at 8 kilometers per hour, and uphill at 6 kilometers per hour. What is the dist...

Math
Two cars run at constant speeds around a one-mile racetrack. The faster car passes the slower car every two minutes if the cars run in the same direction. If they run in opposite directions, they meet every 15 seconds. Find the speed of the faster car in miles per hour.

English II
"Base Details" If I were fierce, and bald, and short of breath, I’d live with scarlet Majors at the Base, And speed glum heroes up the line to death. You’d see me with my puffy petulant face, Guzzling and gulping in the best hotel, Reading the Roll of Honou...

Math (Probability)
Four players are playing a game involving choosing squares on a grid of size 3×8. Each player chooses a random square on the grid, then all players reveal their choices and a token is placed in the center of each of these squares. The probability that the tokens form the...

5th grade math
It is 3,556.

Math (Algebra)
What is the remainder when 5×55×555×…×555,555,555 is divided by 100?

Math
A candy store currently sells almonds for $8.50 per kilogram and peanuts for $4.50 per kilogram. It wants to create 20 kilograms of mixed nuts that will equivalently sell for $5.30 per kilogram. How many kilograms of almonds should they use?

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