# Posts by Joe

Total # Posts: 2,690

math
what is 2+2 equal to?

Math 124
There are several ways you might think you could enter numbers in WebAssign, that would not be interpreted as numbers. N.B. There may be hints in RED!!! You cannot have commas in numbers. You cannot have a space in a number. You cannot substitute the letter O for zero or the ...

physics
Use kinematics to find the time it will take the rock to fall to the ground. (delta)x = V(initial)(time) + .5at^2 (delta)x = 0 + .5(-9.8)t^2 First term drops out because initial velocity is zero. Acceleration is that due to gravity. Negative sign is because it is accelerating ...

AP Physics
By Snell's law, n(incident)sin(theta(incident)) = n(refracted)sin(theta(refracted)) or n(1)sin(theta(1)) = n(2)sin(theta(2)) Solving for theta(2) sin(theta(2)) = [n(1)sin(theta(1))]/n(2) Theta(2) = arcsin [n(1)sin(theta(1))]/n(2) Theta(2) = arcsin ((1)(sin(33.5))/1.33 or ...

physics
some massive butt mud

Dynamics
39.22 m/s

math
john's high score on the asteroid game was 326,700. mike's high score was 418,200. rebecca just plated the game and her high score was halfway between john's and mike's. what was rebecca's score?

Spanish-another question please
Thank you for all your help

Spanish-another question please
1.If I had a picture of a family having fun in the snow-I'm not sure how to say that-- a.La familia divertirse en la nieve b.La familia se divertir en la nieve c.La familia diviertese en la nieve d.La familia se divierte en la nieve I think it is (a) 2. If a muchacho is ...

Spanish
Could you please check these -thank you 1.How do you say I am going to wake up early I think it is "Yo me voy a despertar temprano" 2. What is another way of saying "Voy a secarme el pelo. Is it "Me voy a secar el pello.

PHYSICS
a=3.14 rads

Physics
The acceleration due to gravity on the moon is about one sixth its value on earth. If a baseball reaches a height of 62 m when thrown upward by someone on the earth, what height would it reach when thrown in the same way on the surface of the moon? Answer in units of m

algebra
you rent a car for \$55.00 a day. .20 cents a mile , and you pay \$80.00 at the end of the day. how many miles did you drive

statistics
You ask a neighbor to water a sickly plant while you are on vacation. Without water the plant will die with probability 0.8. With water it will die with probability 0.4. You are 87 % certain the neighbor will remember to water the plant. You come back from the vacation and the...

Physics
A ball is thrown straight up and rises to a maximum height of 24 m above the ground. At what height is the speed of the ball equal to half of its initial value? Assume that the ball starts at a height of 1.9 m above the ground.

math riddles for 7th grade
turdy truck

Chem 151
23, 54

Pronoun agreement
a b b b b a a a b b

Chem
A mass spectrum of phosporus atoms shows only a single peak at a mass of 31 what can you conclude from this observation?

psycology
nisa has grown up in a small villegein the foothills. There was no electricity and water had to be hand pumped.they seldom saw people from the outside.when she entered school the bus had to pick her up

Chemistry
Beryllium Chromate Pentahydrate

Chemistry
Use Boyles law P1V1 = P2V2 Answer 112 kPa (850)(x)=(1700)(56) <--- Equation

chemistry (please help)
Use density to find the mass Density * Volume = Mass of Coolant Make sure to convert 26.5 to ml or take 1.11 g/ml to 1.11 g/L.

algebra 1
Not DISTRIBUTE BUT ADD

algebra 1
Distribute the 5 9+105x

Math
Fair Coins*

Math
1. When four fan coins are flipped what is the probability of getting either exactly two heads of exactly two tails? 2. Solve for x 3x-x√3=-6 3. In the figure below ABCD is a rectangle and DE=DC. Given Ad= 5 and BE=3 find DE Thanks!

Bio
How much NaC3H5O3 (in grams) is needed to create a 1000 ml volume of Ringer’s lactate solution?

science
idk

arithmetic
What is the sum of the arithmetic sequence 22, 13, 4 … if there are 28 terms?

algebra
select T.branch_name from branch T, branch S where T.assets > S.assets and S.branch_city = "Brooklyn" Write an efficient relational algebra expression that is equivalent to this above query. Here is my answer: á T.branch_name (T.assets > S.assets v S....

math
select T.branch_name from branch T, branch S where T.assets > S.assets and S.branch_city = "Brooklyn" Write an efficient relational algebra expression that is equivalent to this query. Here is my answer: á T.branch_name (T.assets > S.assets v S....

Physics
A dog runs 50 m 30¢ª south of east and then turns and runs 75 m 45¢ª north of east. Determine the dog's resultant displacement

English
What is the meaning of validity, truth, and soundness as they relate to logical syllogisms

physics
9.4

Math
An angle θ, in standard position, has its terminal side in Quadrant IV on the line 12x + 5y = 0. Find the exact values of sin θ and cos θ.

math
write an inequality for the p (in dollars)described. Price start at \$12.99

math
Suppose you have a 64 gigabyte flash storage system, with a 4096 byte page size. How big would the flash translation table be, assuming each page has a 32 bit address, and the table is stored as an array. I think the answer is 20 pages, does that sound about right?

Math
Can you get an answer?

Math
Find the quotient a^2x^3 + (5a^2b+ab)x^2 + (ab^3+5ab^2)x + b^4 divided by ax + b ^ symbolize power so a^2x^3 means a squared times x cubed.

math
I know its hard to see, but the triangle looks like this /_| with the legs on the right and bottom with the hypotenuse on the left. They give you y for the right leg and x for the bottom leg, no hypotneuse. o is the bottom right angle and a is the top right angle. So I don'...

math
Given the triangle shown, describe the function values in term of the triangle's two legs /| /a| y / | /o__| x Find: sec a Find: csc o

statistics
In a preliminary study, the sample standard deviation for the duration of a particular back pain suffered by patients was 18.0 months. How large a random sample is needed to construct a 90% confidence interval so that an estimate can be made within 2 months of the actual duratio

PreCalc - Sequence
A ball is dropped from a height of 20 ft and always rebounds 1/4 of the distance fallen. A. write a sequence for the first 3 rebound heights B. How high is the 6th rebound? C. Find the sum of all possible rebounds. I keep getting numbers that are too high. I don't think I ...

math
X+(1/6)=(1/3) get X by itself by subtracting 1/6th from both sides. x(+1/6)-(1/6)=(1/3)-(1/6) x=(1/3)-(1/6) x=(1/6) These operations of getting the variable(s) on one side will be the basis of many of your future calculations as you progress through mathematics.

math
help solve x + 1/6= 1/3 thanks

math
solve by substitution method. 5m+n=36 m-5n=54 the everton college store paid 1,859.00 for an order of 49 caculators the store paid 11.00 for each scientific calculator. the others ,all graphing caculators, cost the store 55.00 each. how many of each type of caculators was ...

Pre Cal/Vectors
Can someone show the steps involved in figuring out this type of problem? Given the magnitudes of vectors u and v and the angle Ό between them, find the magnitude of the sum u + v to the nearest tenth and the angle that the sum vector makes with u to the nearest degree. /...

Vectors
If /U/=9, /V/=11, and theta = 43 deg (angle between), find the magnitude of U+V and give the direction that the that the resultant makes with U.

structured query language math
Display a list of all instructors, showing their ID, name, and the number of sections that they have taught. Make sure to show the number of sections as 0 for instructors who have not taught any section. Your query should use an outerjoin, and should not use scalar subqueries...

math write in sql
Display the list of all departments, with the total number of instructors in each department, without using scalar subqueries. make sure to correctly handle departments with no instructors. Is this the right answer: select department.dept_name from department natural left ...

math write in sql
I have this question i need to know how to do for a test coming up this week. a)Display the list of all course sections offered in Spring 2010, along with the names of the instructors teaching the section. If a section has more than one instructor, it should appear as many ...

SQL
Im am running oracle. Here is what i have for the first query:select ID, name, from instructor natural left outer join section where sec_id >= 0.

SQL
This is a practice problem that the book has no answer for and needed to see how these two problems are done so i can be prepared for a test next week. The both need to be written in structured query langauge.

SQL
Display a list of all instructors, showing their ID, name, and the number of sections that they have taught. Make sure to show the number of sections as 0 for instructors who have not taught any section. Your query should use an outerjoin, and should not use scalar subqueries...

trig
Given that SIN Theta = -1/sqrt(10) and theta is in quadrant 4, find sin2theta and cos2theta. I'm not sure how to properly square the -1/sqrt10 and keep an exact answer other than decimal. Otherwise, my final answer is Sin2Theta = -.7255970691 and cos2theta = 1.632455533

Pre-Calculus
Given that SIN Theta = -1/sqrt(10) and theta is in quadrant 4, find sin2theta and cos2theta. I'm not sure how to properly square the -1/sqrt10 and keep an exact answer other than decimal. Otherwise, my final answer is 1.632455533

Calculus
positive 5.47

Calculus
-13.67?? ...

Calculus
The altitude of a triangle is increasing at a rate of 3000 centimeters/minute while the area of the triangle is increasing at a rate of 1500 square centimeters/minute. At what rate is the base of the triangle changing when the altitude is 9500 centimeters and the area is 87000...

algebra
simplify by removing the factors of 1 p^2-4/(p+2)^2

algebra
simplify by removing the factors of 1 p^2-4/(p+2)^2

English
Lying in a Hammock at William Duffy's Farm in Pine Island, Minnesota? What is the significance of this poem? What does the author mean by the last line? I don't understand what this poem is about and any help would be greatly appreciated! Over my head, I see the bronze...

chemistry
If 10 calories of heat are added to two grams of liquid water what is the temperature of the water

COLLEGE ALGEBRA
Sue, a recent retiree, requires \$6,000 per year in extra income. She has \$50,000 to invest and can invest in B-rated bonds paying 15% per year or in a certificate of deposit (CD) paying 7% per year. How much money should be invested in each to realize exactly \$6,000 in ...

math
What formula would you use to figure out this word problem? A rectangular pen for a pet is 8 feet longer than it is wide. Give possible values for the width W of the pen if its area must be between 180 and 825 square feet, inclusively.

Algebra
James has saved \$50. He wants to buy a DVD player for \$149 in about 5 months. To find out how much he should save each week he wrote 50+20x=149. Explain his equation.

math
if i made \$65,000 a year and got a \$3000 raise. what would be the precent increase rounded to the nearest tenth

COLLEGE ALGEBRA
.7638

physics
ya get it 69

physics
...

physics
...

physics
fist you take 100 and then *2 to get 200 then do3.275 * 40 and get 131 then all you need to do is 200-131... and get______________________________________________

Math
7yd 2ft 3in - 2yd 2ft 9 in

Math
A pyramid is inscribed in a cube whose volume is 52(pi) cm^3. The volume of a sphere is equal to the volume of this pyramid. Find the volume of a second cube whose edge is equal to the radius of the sphere.

math
sorry i don't understand the question

Math
Compute the number of eleven-digit integers that can be formed using all of seven 1s and four 0s if you never start of end with a 0 and no 0s are ever next to each other.

math
ok to find a diagonal you use the Pythagorean theorem which is a^2 + b^2 = c^2 ok? c^2 is the diagnol. So basically a^2 + b^2 = 100 ok? so what two squares equal 100. well 64+36=100 take the square root of those two which is 8 and 6. so the perimeter is 28 cm long

math
if you retyped the question so that it is legible i may be able to help you, otherwise i won't.

Math
alright thankyou.

Math
uh oh my mistake. I missed a key part of the question. the question is..... How many terminal zeros are at the end of (20!)^2?

Math
20,15,10, and 5 are all divisible by 5. so 4. Is that how you solve for the amount of terminal zero's?

Math
How many terminal zeros are at the end of (20!)?

math
what kind of name is aniket? ok back to the question, i'm not sure how to explain to you how i solved this one but i did find the answer. I just made one of his subjects marks 60 then i subtracted 20 from 60 and added 20 from 60 so the three mark amounts are 40,60,80. So ...

statistics
10.15 A psychologist theorized that people can hear better when the have just eaten a large meal. Six individuals were randomly assigned to eat either a large meal or a small meal. After eating the meal, their hearing was tested. The hearing ability scores (high numbers ...

Chemistry
How many mL of 0.024M KMn04 (Potassium Permanganate) is required to react with 20mL of 0.112M Fe2+?

Math
1 1/3 - 1 3/4

Math
what do you notice about each ratio? 2/1 and 4/3

World History
What was the most important factor in the British conquest of India during the eighteenth century? A. willingness of the British government to pay for an invasion. B. political disunity in India. C. superiority of British arms. D. addiction of millions of Indians to opium. I ...

math
Compute the number of eleven-digit integers that can be formed using all of seven 1s and four 0s if you never start or end with a 0 and no 0s are ever next to each other.

Algebra
well for 1 day you have 21 dollars to spend on mileage. \$21.00/\$0.21 which is 100 miles

Algebra I
this is funny i came here to ask question but yet i'm answering them. the formula for this is S=D/T or Speed = Distance divided by time, but since you are looking for the time you need to get T by itself. To do so you have to multiply both sides by T then divide S from ...

math
Compute the number of eleven-digit integers that can be formed using all of seven 1s and four 0s if you never start or end with a 0 and no 0s are ever next to each other.

math
im sorry i looked back at what i tried to write out and it turned out wrong, the two 2's are meant to be right after the g's in both the logs and as a subscript because it is log base 2.

math
unsure how to explain how to solve it but i calculated it in my ti-84+ calculator with an equation solver that i downloaded. 4^log [2log (5)] = 21.56540031 2 2

math
A box containing Munchkins contains chocolate and glazed donut holes. If Gloria ate 2 chocolate Munchkins, then 1/11 of the remaining Munchkins would be chocolate. If Gloria added 4 glazed Munchkins to the box, 1/7 of the Munchkins would be chocolate. How many Munchkins are in...

math
A large rectangle is divided into 4 non-overlapping smaller rectangles by two lines. One line is parallel to the base, and the other line is parallel to the height. If the areas of three of the small rectangles are 18,24, and 40, compute the only possible integer solution for ...

math
the sign of the sum would be negative, for example: -14+7=-7 because the negative integer has a greater magnatude, then the sign will remain to be negative.

Math
unsure what you are asking. Is there a slope given?

math
the sign of the sum would be negative, for example: -14+7=-7 because the negative integer has a greater magnatude, then the sign will remain to be negative.