# Posts by Joe

Total # Posts: 2,615

Epidemiology
• Consider each of the following scenarios and explain whether the variable in question is a confounder: a. A study of the relationship between exercise and heart attacks that is conducted among women who do not smoke. Explain whether gender is a confounder. b. A case-...

quick ?
What is meant by the term concrete reality?

algebra
can somebody tell me how to solve this inequality equation? (a-2)(a-3)<0 I know the opposite was 2 and 3..but how do i determine the greater than, less than or equal to? Explain please.

Math
For every girl taking classes at the martial arts school, there are 3 boys who are taking classes at the school. If there are 236 students taking classes, write and solve a proportion to predict the number of boys taking classes at the school.

statistics
in a scientific study there are 8 pigs 5 of which are pregant if 3 are selected at random without replaement find the probability that all are pregant

statistics
in a scientfic study there are 8 pigs 5 of which are pregnant if three are selected at random without replacement find the probability that all are pregant

statistics
The number of defects in a random sample of 200 parts produced by a machine is binomially distributed with p = .03. Based on this information, the expected number of defects in the sample is 6. Is it True or False?

Probability
0.038

math
find all zero's for 2x^4-11x^3+16x^2-x-6 im needing the complex, rational, irrational, and all of the zero's

ENGLISH
What criteria do you suggest I make for my evaluation paper? My topic is that the school's celebratory bonfire for the basketball championship is a waste of time.

Geology
What information indicates the probable magnitude of future earthquakes along a specific fault segment?

Jones
1. To what extent can earthquakes be predicted? 3. What can a trench dug across an active fault show about past fault movement? 4. What is a seismic gap, and what is its significance in determining future fault activity? 5. What information indicates the probable magnitude of ...

physics
motorcycle and 66.0 kg rider accelerate at 2.0 m/s2 up a ramp inclined 5.0° above the horizontal. What are the magnitude of the force on the rider from the motorcycle?

physics
THANKS!!!

algebra
A book has N consecutive pages torn out. Suppose A is the last numbered page before the torn out section and B is the forst numbered page following the torn out section. Fins the formula for N in terms of A and B * Each paper in the book has 2 sides. Each side is one page

physics
I know the velocity ration is 2, not sure of the other

Ashton broke apart a number into 30+7 what number did he start with?

statistics
In a survey, 63% of Americans said they own an answering machine. If 14 Americans are selected at random, find the probability that exactly 9 own an answering machine.

(x+4)(x+3)=0 therefore, (x+2)(x+4)(x+3)=0? x= -2, -4, -3?

I used synthetic division to get (x+2)(x^2 + x + 12)=0

Can somebody tell me what to do next for solving polynomial equations? x^3 - 3x^2 -4x + 12= 0 I got the factors of 12 and i used 2. (x+2) (x^2 + x + 12)=0 What do I do next?

Math
Write an equation that shows 64 as a product of prime numbers

physics
A 100-N child is in a swing that is attached to ropes 1.90 m long. Find the gravitational potential energy (b) when the ropes make a 35.0° angle with the vertical c) when the child is at the bottom of the circular arc

physics
A golfer rides in a golf cart at an average speed of 3.10 m/s for 29.0 s. She then gets out of the cart and starts walking at an average speed of 1.40 m/s. For how long (in seconds) must she walk if her average speed for the entire trip, riding and walking, is 2.20 m/s?

Math
At Mr.Vid's Rentals you can join his VID Club for a monthly membership fee of \$30.Club members pay only \$.85 to rent each movie. If you are not a member of the VID Club, the movies rent for \$2.25 each.How many videos would you have to rent each month to make a membership ...

math
the width of a rectangle is 6 cm less than the length. the perimeter is 72cm. write and solve an equation to find the width and length of a rectangel.

con law
explain how bargaining and accomodation affect opinion writing on the court

poltical science
what are amicus curiae briefS?

political science
i don't even know where to begin?

political science
discuss the political environment leading to the court's decision in Marbury v Madison (1803). How did Chief Justice john marshall secure the power of judical review?

physics
34

math
Oh i'm sorry i didn't see that. im so sorry .

math
You didn't answer this one. you answered someone else's that was about the U.S and Greek people.

math
The population of nevada is close to 1.6 million which is about 1/5 of Michigan's population. what is the estimated population of Michigan?

math
The population of nevada is close to 1.6 million which is about 1/5 of Michigan's population. what is the estimated population of Michigan?

bikes tyre filled with air pressure=6 atm =6x10^5 Pa on tempreture 20c = 20+273 = 293 K.. we used the bike on tempreture at 45 c the volume increase by 2%. find the new volume?PV=nRT

math
1,130,000 in scientific notation

physics
An airplane flies 200 km due west from city A to city B and then 340 km in the direction of 35.0° north of west from city B to city C. (a) In straight-line distance, how far is city C from city A? (b) Relative to city A, in what direction is city C? ° north of west

math
how many 7 digit numbers can less than 1,048,000 can be made using digits 0,1,4,6,7,8 and 9?

math
if a+b=3 and a^2+b^2=6, what is a^3 + b^3

math
let s be a positive number. Solve the following equation for x. √a^3√a^4√a^3=a^x

math
how do i solve by factoring x^4+2x^2y^2+9y^4

Algebra
thank you....you were right

Algebra
I need to division which is (x^2-6x-27)/(x+3) when I do it I get an answer of (x-9)-27/x+3 but it seems to be wrong. Can someone see what mistake I did... THANKS

MATH
thanks for the link...It helped me a lot

MATH
Perform the indicated division 2x^2-7x-13/x-5

Algebra
Perform the indicated division 2x^2-7x-13/x-5

Algebra
Perform the indicated division 2x^2-7x-13/x-5

Algebra
Perform the indicated division 2x^2-7x-13/x-5

Algebra
Perform the indicated division 2x^2-7x-13/x-5

Calculus
Thanks so much

Calculus
Find the absolute maximum and minimum values of f(x)=(x^2)(e^(-x/2)) on the interval [-1,6]

Maths
hoe can i derive this equation. s(v)=(4pi)^1/3(3v)^2/3 and please explain.

Physics
Block A of mass 4.0 kg is on a horizontal, frictionless tabletop and is placed against a spring of negligible mass and spring constant 650 N m. The other end of the spring is attached to a wall. The block is pushed toward the wall until the spring has been compressed a ...

Physics
Block A of mass 4.0 kg is on a horizontal, frictionless tabletop and is placed against a spring of negligible mass and spring constant 650 N m. The other end of the spring is attached to a wall. The block is pushed toward the wall until the spring has been compressed a ...

Math
On what interval(s) is the curve y=(2e^x)-(e^(-3x)) concave downward?

math
Can not be solved. You can simply it down more to get 3x+6=3x. If you move the 3x to the same side you get 6=0 which is false.

GPA?
Would taking extra classes online help raise my GPA to a 2.8?? (I'm a junior and i need it raised before the end of my senior year. I have a 1.27 Grade Point Average right now.)

algebra
The difference of a number and 7 is the same as 45 less the number. find the number

Europe
what role did the geography of Europe play in the development of and ways of life in these towns?

Earth Science
During the Dinosaur Ages, if there was a region with a mountain range, alluvial plain, and a shallow sea. Which place would it be the most likely for dinosaur fossils to be formed?

MATH
Suppose that you have a supply of a 25% solution of alcohol and a 75% solution of alcohol. How many quarts of each should be mixed to produce 100 quarts that is 30% alcohol?

Algebra
ok I have got the answer anyway...thanks for ur help in the other question

Algebra
yes that's correct...Can you see where i am making a mistake in this problem. 1-125x^3 I got answer of -(5x-1)(25x^2+5x+1) but it seems to be wrong

Algebra
Factor 4xy+28x+y+7

Algebra
never mind. I have fiugured out the answers

Algebra
Could someone please help me with those 2 problems...thanks a lot for any of your help Use an algebraic approach to solve the problem. Find three consecutive integers whose sum is 57. Suppose that Maria has 140 coins consisting of pennies, nickels, and dimes. The number of ...

What is the solution of x-4 is less than 4 and x + 4 is greater than 7 Please show how you did it so I can look at it and learn how to do them in the future Thanks

Algebra
What is the solution of x-4 is less than 4 and x + 4 is greater than 7 Please show how you did it so I can look at it and learn how to do them in the future Thanks

Math
What is the solution of x-4 is less than 4 and x + 4 is greater than 7 Please show how you did it so I can look at it and learn how to do them in the future Thanks

Spanish
Thank you

Math
ostriches=9 feet tall Birds in aviary=birds belong to me ostrich=does not live on mince pies birds belong to me=9 feet tall cancel all that are in common: the ostriches, birds belong to me, and 9 feet tall. You are left with the conclusion: The birds in my aviary do not live ...

physics

physics
A foam cube bounces to a height of 15cm when dropped from a height of 100cm. To what height will it bounce if dropped from a height of 2.5cm? How do

physics
A round ball bounces to 2m after being dropped from an undetermined height. To what height will it bounce if dropped from a height 2.5 times as high? (how do u even calculate this problem?). (or is it just a problem that cant be solved?)

physics
drwls- so the answer cannot be determined?

physics
A ball of mass 1.2kg and a volume of 35cm cubed is dropped from a height of 2m. Determine the height to which this ball will bounce.

calculus
Use the ratio test to determine whether the series is convergent or divergent. 1/2 + 2^2/2^2 + 3^2/2^3 + 4^2/2^4 + ...

Finance
I think not but why?

Finance
Saturated Meat Corporation preferred stock is currently selling for \$22 per share. The preferred dividend is \$2.50 per share. If Jennifer requires a return of 10% on the preferred stock, should she invest in this stock?

Buisness - Finance
Determine the value of a \$500 Canadian Pacific Limited perpetual 8 percent debenture if the required rate of return is 14%:

tsu
can you help with this answer anyway?

Well i want to know what my teacher is asking

What is my English teacher asking? Here is the prompt. Life can be considered a series of stories. It is the narrative we tell and hear the create the life the we live. And it id through these narratives that messages are passes. "October Sky", "Celebration of ...

Physics
Engr joe

Math
.86/1

what times on a clock make an acute angle? Is it 2:006:40 1:30 12:50

arithmetic
a total of eight pills are on a table. all have the same color and size. however, one is poisonous and weighs a fraction more than the others. a balance scale may be used only two times to determine the heavier pill. seven of the pills must be eaten.

Chemistry

algebra 1
please explain to me how I work out problems such as "-2-3" to get the correct answer and show the same on a number line

math/chem
it is estimated that uranium is relatively common in the earth's crust, occurring in amounts of 4 g/metric ton. a metric ton is 1000kg. at this concentration, what mass of uranium is present in 1.0 mg of earth's crust?

economics
What is the opportunity cost (in dollars) to attend an hour-long econ lecture for A \$160,000 per year corporate executive who works 2,000 hours per year?

the time hackers

Chemistry
Which solution has the higher osmotic pressure, 2 M NaCl or 2 M CaCl2?

Chemistry
Which solution has a higher vapor pressure, 1 M NaCl or 1 M glucose(C6H12O6)?

accounting
Compute the total, price, and quantity variances for materials and labor. The following direct materials and direct labor data pertain to the operations of Batista Manufacturing Company for the month of August. Costs Quantities Actual labor rate \$13 per hour Actual hours ...

accounting
E11-6 The following direct materials and direct labor data pertain to the operations of Batista Manufacturing Company for the month of August.

Physics
60.0MW

algebra
Thank you.. SO would it be (x-5)(x+5)

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