Friday
April 18, 2014

Posts by JT


Total # Posts: 64

physics
While taking a rest on a tree branch, a daring cowboy sees a wild horse running towards the tree he was on. he wants to land on the horses back when it passes under the tree. if the horse is running at a constant velocity of about 2 m/s and the vertical distance between the co...

physics
a contestant projects a coin with a speed of 7 m/s at an angleof 60 degrees to the horizontal. When the coin leaves his hand, the horizontal distance between the coin and the dish is 2.8m. The coin lands in the dish. calculate the horizontal component of the initial velocity o...

math pre calc
solve for X marticies 2 0 5 4 -1 3 =2 6 x -7

math pre calc
gaussian elimination x+Y+Z=-2 X-y+5z+22 5x+y+z=-22

math pre calc
at the pittsburch zoo, children ride a train for 25 cents, adults pay $1 and seniors pay .75. on a given day, 1400 passengers paid a total of $740 for the rides. there were 250 more children riders than adults and senior riders combined.find the nu,ber of each type of rider. s...

math
im in an online school :p

math
Funny thats a question on my last math test

Advanced Alegebra
How do I solve the following problems? My homework was to correct a puiz that I failed, but I do not know how to solve these problems..please help! Solving systems of equations using elimination: 7.) 10x - 10y = 0 5x - 4y = 8 Answer (8,8) I got the right answer because this on...

statisitcs
suppose you got 75 items corrct on a 100-item, six alternative, multiple-choice exam what would your score be after we corrected for guessing?

statistics
45

algebra 2
how can you tell when y is a function of x on a graph

algebra 2
If f(x) = int(x), find the given functional value. 1. f(-9.1)

ThermoChemistry
c_hot = (4.184J/g*K)(18mL)(1g/mL) c_cold = (4.184J/g*K)(19mL)(1g/mL) Use: 0 = c_hot(T_f - T_initial,hot)+ c_cold(T_f - T_initial,cold) Solve for T_f and remember to convert temperature back to C from Kelvin and vice versa. Best of luck, ChemVantage Loather

Physics
Two objects are connected by a light string that passes over a frictionless pulley, and two objects are on either side of the string. There is a hanging object off the vertical side of the incline weighing 10.0 kg. The 3.50 kg object lies on a smooth incline of angle 37.0°...

algebra
how would I simplify 1089b^7t^5/891t^2b?

psy
Explain the biological, emotional, cognitive, and behavioral components of postpartum depression

physics
If the back of the truck is 1.5 {\rm m} above the ground and the ramp is inclined at 24{\rm ^{\circ}}, how much time do the workers have to get to the piano before it reaches the bottom of the ramp?

MicroEconomic
Strictly speaking, perfect competition has never existed and probably never will. Then why study it?

Managerial Economics
Strictly speaking, perfect competition has never existed and probably never will. Then why study it?

Physics
A car moves from a point located 26.0 m from the origin and at an angle of 35.0° from the x-axis to a point located 56.0 m from the origin and at an angle of 60.0° from the x-axis in 2.50 s. What is the magnitude of the average velocity of the car?

3rd grade
There are 32 more apples than oranges at a fruit stand. How many apples and oranges could there be?

Physics Please Answer
1. to make a secure fit, rivets that are larger than the rivet hole are often used and the rivet is cooled (usually in dry ice) before it is placed in the hole. a steel rivet 1.871 cm in diameter is to be placed in a hole 1.869 cm in diameter at 20 degree celcius. to what temp...

PHYSICS
1. to make a secure fit, rivets that are larger than the rivet hole are often used and the rivet is cooled (usually in dry ice) before it is placed in the hole. a steel rivet 1.871 cm in diameter is to be placed in a hole 1.869 cm in diameter at 20 degree celcius. to what temp...

PHYSICSSS!
A brass lid screws tightly onto a glass jar at 20 oC. To help open the jar, it can be placed into a bath of hot water. After this treatment, the temperature of the lid and the jar are both 60 oC. The inside diameter of the lid is 8.0 cm at 20 oC. Find the size of the gap (dif...

MARKETING
Your company’s sales are 50,000 units. The unit variable cost is $12. Your markup percent on sales is 40% and your fixed costs are $100,000. 1. What is your profit / loss?

STATISTICS
Can a ANOVA be compared to a blood test?

English
I was thinking B

English
Which passage is correctly punctuated? a)In the middle if the night. My cat leaped onto mt stomach. b)In the middle if the night, my cat leaped onto mt stomach. c)In the middle if the night; my cat leaped onto mt stomach. d) My cat leaped onto mt stomach. In the middle if the ...

English
So its B

English
Choose the sentence below that has no errors in pronoun case. a) Sharon and him dtive to Las Vegas at least once a year. b)For Nancy and he, the movie was a boring waste of time. c)Our neighbor made a casserole for Chad and me. d)Nick said that he would meet mt mother and I at...

English
Which of the following word groups is punctuated correctly? a)It rained every day of our vacation nevertheless, we had a wonderful time. b)It rained every day of our vacation, nevertheless, we had a wonderful time. c)It rained every day of our vacation, nevertheless; we had a ...

Algebra
Why are these algebraic expressions used and explain the logical error: Since a = b, then a2 = a * b Subtract b2 from both sides a2 – b2 = a * b – b2 Factor both sides: ( a + b )( a – b ) = b(a – b ) Divide both sides by ( a – b) ( a + b ) = b Since a ...

Algebra
explain the logical error Square both sides to get a2 = b2

Algebra
Find logical error a2 = b * b

algebra
8a^2 + 40ab+ 50b^2 = 2(4a^2 +20ab +25b^2) = 2(2a + 5b)^2 How is this a perfect square?

Algebra
Are these complete? m^2 + 4mn +4n^2 = (m + 2n)(m+2n) 3x^3y^2 – 3x^2y^2 + 3xy^2 = 3xy(x^2y – xy + y) Thank you

Algebra
3m^3 + 27m = 3m(m^2 + 9) = 3m(m + 3)(m – 3) I miss something? is this complete?

Algebra
Factor polynomial completely 8a^2 + 40ab+ 50b^2 =

Algebra
Factor polynomial completely 8a^2 + 40ab+ 50b^2 =

Algebra
3m^3 + 27m = 3m(m^2 + 9) = 3m(m + 3)(m – 3) its is not done? is this a cubeproblem?

Algebra
3m^3 + 27m = 3m(m^2 + 9) = 3m(m + 3)(m – 3)

Algebra
8a^2 + 40ab+ 50b^2 =

algebra
a^2 + 2a -24

Algebra
Factor polynomial completely ax - 2a - 5x +10

Algebra
Solve equation 2x^2 + 5x –12 = 0

algebra
w^3 + 5w^2 - w = 5

algebra
Solve the equation (x-3)^2+(x+2)^2=17

algebra
Solve the equation (x-3)^2+(x+2)^=17

algebra
2x^2+5x-12=0

Algebra
The perimeter of this rectangular portion needs to be 14 yards and the diagonal is 5 yards. Can you help Mike determine the length and width of this new portion? Mike requested that you show him how you arrive at the answers.

Algerbra
JT has $16000 saved. In 2years time his investment grew to $250 00. Can you find the annual interest rate of his return by solving the following equation for him: 16000(1 + x)2 = 25000

math
a road crew has 3/4 ton of stone to divide evenly among four sidewalks. How much stone does the crew use for each sidewalk?

7th grade
I have to write two paragraphs discussing the problem of winning support from other nations for the Patriot cause during the Revolutionary War. I don't know what the problem was. The French Spanish & Germans were eager to fight against the Engilish.

Math
I would just like to know how each student can get their grades to 3.8 by the time each reaches 90 credits. Thanks--

Math
YA, I am going to say they all want to raise their grade to 3.8 Is there some kind og matrix solutions that these numbers can be pluged into to get an answer?

Math
Students at ACC must earn 90 credits to obtain an Associate’s degree. Three students find that they all have a GPA of 3.3 even though they do not have the same number of credits. The students hope to increase their GPAs to a 3.8 by the time they have earned 90 credits. On...

algebra
Can you help me to find the product of -4x^2 and x^3 + 2x^2 - 5x + 3... and the solution to the equation of x^2 + 30x = 1000...I came up with -20 and 50 but I think it is wrong also can you help me to do the factorization of 6x^2 - 2x -20....Thank You please help with solutions

8th grade
can u help me to find the product of -4x^2 and x^3 + 2x^2 - 5x + 3 and the solution to the equation of x^2 + 30x = 1000...I came up with -20 and 50 but i dont think it is right..can u help also can you help me to do the factorization of 6x^2 - 2x - 20.....Help please help

CHemistry
Thats cause you found POH, subtract taht from 14

Science
How does the use of antibiotics result in the evolution of resistant stains of bacteria.

statistics...Please help
A sample of 12 measurements has a mean of 24 and a standard deviation of 4.5. Suppose that the sample is enlarged to 14 measurements, by including two additional measurements having a common value of 24 each. Find the standard deviation of the sample of 14 measurements.

physics
Actually, just noticed that was for in -x direction, so change sign on acceleration 35*sin(11)+(35)(-1)=Fx 35*sin(11)+(35)(-2)=Fx

physics
this is kinda late answer, but still... 35*sin(11)-Fx=0 This works for a = 0 35*sin(11)+ma-Fx=0 More complete answer... (a!=0) So, for increasing rate of a = 1m/s^2 This is going in negative direction, so 35*sin(11)+(35)(1)=Fx And for a = 22/s^2 35*sin(11)+(35)(2)=Fx Crunch in...

Type Sketch - Cynic
"There are people in the world who see things as they are and deal with them accordingly. These people are called cynics by those who do not possess the same capacity." - George Bernard Shaw

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