Sunday
April 20, 2014

Posts by allen


Total # Posts: 158

Math
Find the z-score such that the area under the standard normal curve to the left is 0.25

math
Find the value of z = 0.94

Solid mensuration
The bases of a triangular right prism are apart. find the volume and the total surface area of the prism if one side of the quilateral triangular base measures 6cm

Physics
In a photoelectric-effect experiment it is observed that no current flows unless the wavelength is less than 570nm . A)What is the work function of this material? W0= in eV B) What is the stopping voltage required if light of wavelength 420nm is used? stopping voltage in V

physics
A gamma-ray photon produces an electron-positron pair, each with a kinetic energy of 275keV . What was the energy of the photon? E=in MeV What was the wavelength of the photon? wavelength in m Please help thank you!

Physics
In a photoelectric-effect experiment it is observed that no current flows unless the wavelength is less than 570nm . A)What is the work function of this material? W0= in eV B) What is the stopping voltage required if light of wavelength 420nm is used? stopping voltage in V

phics
In an experiment on motion, a cart weighing 240 N was pulled up an inclined plane. Which of the following would be the expected reading on the spring scale as the cart is pulled up an inclined plane set upon two books

math
Your question: "The shorter diagonal of a rhombus is 50 mm long. Each of its obtuse angles measures 140. Find the length of each side."

cmsd
Your question: "The shorter diagonal of a rhombus is 50 mm long. Each of its obtuse angles measures 140. Find the length of each side."

Finance
77

Math
Mark bought 54 cm of lace and 2m 45cm of black lace. How much total lace in meters did he buy?

posibility
One problem encountered by developers of the space shuttle program is air pollution in the area surronding the launch site. Acertain direction from the launch site is considered critical in terms of hydrogen chloride pollution from the exhaust cloud. It has been determined tha...

Finance
The following information was available as of the close of business June 1, 2004 on government of Canada bonds. Coupon...Maturity.....Price.....Yield 5.00%......June 1, 2005......102.35......2.60 10.50%......June 1, 2006......113.91......3.26 8.50%......June 1, 2007.....107.41...

Math 102
What number must be added to the numerator and subtracted from the denominator of 10/23 to obtain a fraction equivalent of 6/5? Please provide step by step, this is a word problem for rational expressions. Thank you

Business- Labor
true or false Arbitration and grievance procedures have done virtually nothing to prevent chaos and disorder in labor relations.

finite math
Given n(A')=23, n(B')=16, and n((A [intersect] B) U (AUB)'))= 24, find (A [intersect] B) I apologize but intersect was the best way I found to represent the upside down U symbol.

Business- Labor
how sympathetic are you to the statement of a former general motors chairman that offering a union leader a seat on GMs board of directors made "as much sense as having a member of GM's management sitting on the board of an international union?" Explain. I need h...

finite math
suppose that 3 digits are selected at random from the set S={1,2,3,4,5,6} and are arranged in random order. Find the probability that the resulting 3-digit number is less than 300.

Business- Labor
I agree, they are typically failures. They are not able to create a healthy balance between supply and demand.

Business- Labor
governmental wage and price controls should never be tried again. they have been failures. agree? why or why not?

Business- Labor
how would this classify them as second-class citizens?

Business- Labor
do you believe that public employees should be able to employ collective bargaining for wage increases or should the ‘free market’ continue to dictate wages in the public sector? Why or why not?

Business- Labor
declining labor union membership

Business- Labor
Labor’s membership stagnation in the last half-century can be explained by several formidable obstacles. Explain

Physics
For a record playing at 45 rpm, find the frequency and the angular velocity. Frequency= Angular velocity=

chemistry
How many grams of carbon can be burned in 15 dm3 of oxygen and many dm3 of CO2 is produced?

chemistry
how many grams of magnesium are required to liberate 250 cm3 of Hydrogen gas from HCL

alebra
how do i simplify 3m+n/4n^2m + 3m +n +5/4n^2m

alegbra
what is the least common multiple of 16x^3yz^3 and 14z^6xy^4c

alegbra
how do i simpllify 5/x + 4/x^2 - 3/x^3

physics
assume he do not bounce at all

physics
if one man 50 kgs fell from 10 meter high builder, how much impact force when he hit the concrete ground and how long the time it happen.

College Physics
Find the minimum work required to carry a truckload of furniture weighing 1.99 104 N to a third-story apartment, 24.0 m above the truck.

College Physics
A 4.30 kg block starts from rest and slides down a frictionless incline, dropping a vertical distance of 2.60 m, before compressing a spring of force constant 2.20 104 N/m. Find the maximum compression of the spring.

College Physics
A 4.30 kg block starts from rest and slides down a frictionless incline, dropping a vertical distance of 2.60 m, before compressing a spring of force constant 2.20 104 N/m. Find the maximum compression of the spring.

College Physics
A 4.30 kg block starts from rest and slides down a frictionless incline, dropping a vertical distance of 2.60 m, before compressing a spring of force constant 2.20 104 N/m. Find the maximum compression of the spring.

College Physics
A 4.30 kg block starts from rest and slides down a frictionless incline, dropping a vertical distance of 2.60 m, before compressing a spring of force constant 2.20 104 N/m. Find the maximum compression of the spring.

College Physics
A 4.30 kg block starts from rest and slides down a frictionless incline, dropping a vertical distance of 2.60 m, before compressing a spring of force constant 2.20 104 N/m. Find the maximum compression of the spring.

Physics
Where is the 15 coming from? I thought that you may have meant 25 so I calculated 1.21*9.8*25*cos 25 and I got the answer wrong.

mystery trip
can you help me unscramble this famous couple names enargraaetnmgremaad

Physics
During a baseball game, a batter hits a pop-up to a fielder 83 m away. The acceleration of gravity is 9.8 m/s^2. If the ball remains in the air for 6.5 s, how high does it rise? Answer in units of m

english 30-1
write a short compostion discussing social satire in happy event. what aspects of society is satized? how are devices like irony and hyperbole is used to achieve satire? what changes does the author suggest?

chemistryt
Hexane has a density of 0.659 g/ml. How many milliliters (mL) would a student need to pour in order to get 49.5 g of hexane?

Physics
A baseball is tossed at a steep angle into the air and makes a smooth parabolic path. Its time in the air is t and it reaches a maximum height h. Assume that air resistance is negligible. a. Show that the height reached by the ball is gt^2/8. b. If the ball is in the air for 4...

Physics
A rock thrown from a bridge hits hte water below at a horizontal distance x directly below the throwing point. The rock travels a smooth parabolic path in time t. a. Show that the virtical distance of the bridge above water is 1/2gt^2. b. What is the height of the bridge if th...

mathematics
2a^2-3a-2/4a^2-1 (4a^2-1 = denominator) divided by a^2-4/2a^2-5a+2 <--- denominator

physics
If you do 100 j work in 50 seconds, then your Power output is

statistics
B is the answer

statistics
In a binomial distribution: A) the random variable X is continuous. B)the probability of event of interest (pie symbol)is stable from trail to trial C) the number of trials n must be at least 30 D) the results of one trial are dependent on the results of the others. I narrowed...

MATH(quick Help please)
Out of 42 kids in a class twice as many failed Ela as math,4 failed both. If 7 failed neither, find how many failed each subject. Show work thanks

Health(quick question)
why do you need Fiber in foods and is it used to build up muscles

ELA (QUICK QUESTION)
Thanks you gave me great ideas

ELA (QUICK QUESTION)
i need some postive and negative aspects of schools. i need help starting my intro can you help me thanks

Math
Here's a frequency distribution table for the speeds of a sample of automobiles. Speed(MPH) Frequency Midpoint(I found) 50-54 2 52 55-59 4 57 60-64 5 62 65-69 10 67 70-74 9 72 75-79 5 77 I am trying to find the variance but whatever I do I can't seem to find the answer...

please explain poster thx
i found this propaganda poster can you explain it on the poster it says When you ride Alone you ride with Hitler. The next poster i found was Be ready join now CAn you explain these two posters thanks

Ela(summary)
thanks you really helped me

Ela(summary)
Can you give my a nice summary for milk weed? i really dont get the book i read it

History
Why did Arthur Ashe created the National Junior Tennis?

SCIENCE(easy)
explain what might happen to a boulder(large/rock) that is left in your school yard for a long time.

TECH(recycle)
I'm making a recycle logo i need some good ideas to put in the logo and can u give me examples of good recycling logos

logos
i need some amazing logos can u help

free verse poems please
i need really good examples of free verse poems please

POEMS tanka poem
examples of tanka poems thanks

poems
I NEED EXAMPLES OF HAIKU POEMS

math
Condensing 1/2logs+logm+logh-2logI-logd-logk logt+logh+logx-2logl-log0-logl

math
solve -4+7logx=10 & log(x+3)+log(x-2)=log14

Math simple question
angles 1 and 2 are adjacent angles on a line. What is the sum of the measures of the angles? a.30 b.60 c.90 d. 180 I think the answer is b.

Living on your own
What would the greatest financial challenge in living on your own be? I'm guessing that would be paying off utilties, bills, grocery.

chemistry
A scientist wants to make a solution of tribasic sodium phosphate, Na3PO4, for a laboratory experiment. How many grams of Na3PO4 will be needed to produce 450 mL of a solution that has a concentration of Na+ ions of 0.700 M

chemsitry
Calculate the mass in grams of sodium bromide, NaBr, are needed to prepare 250.0 mL of a solution of sodium bromide that is 3.50% (m/v).

math
There are 1728 cubic inches in a cubic foot. Therefore, you divide 5040 by 1728: 5040 / 1728 = 2.92 cubic feet. It is easy to overlook that to get a cubic foot, you have 12 rows, 12 columns, and 12 layers of cubic inches. 12 x 12 x 12 = 1728

geometry
Find the perimeter and area of a right triangle if one leg measures 24 ft. and the other leg measures 70 ft. Please show the steps so I can do the next one. Thanks

geometry
Find the perimeter and area of a right triangle if one leg measures 24 ft. and the other leg measures 70 ft. Please show the steps so I can do the next one. Thanks

math
Dane is three years older than twice his brother's age,(b). Which algebraic expression below represents Dane's age? A. b+3 B. 2b+3 C. 3-2b D. 2b-3 I think the answer is C.

math
Daniel's bonus at work this year is $1000.00 added to 20% of his yearly salary. If X represents his yearly salary, which of the following algebraic expressions should be used to figure the amount of his bonus? A. 0.2(1000+x) B. 1000+x/0.2 C. 0.2x+1000 D. x/0.2+1000

math
I think its c.

math
Dane is three years older than twice his brother's age,(b). Which algebraic expression below represents Dane's age? A. b+3 B. 2b+3 C. 3-2b D. 2b-3

math
u the best teacher ever!!!!!!!!!!!!!!!!!!!!!

math
is the answer 10 miles

math
On the way to school, Bobby noticed the school bus travels 8 miles north, then turns west and goes 6 miles to get to school. If there were a road that went straight from Bobby's house to school, how long the road would be?

math
Which set of decimal numbers is in the order from least to greatest? A. .04,.004,.4,.043 B..004,.4,.043,.401 C..043,.401,.004,.04 D..004,.043,.4,.401

math
I say its c

math
a. 5/12=1.25/x b. 5/12=x/1.25 c. 5/x=12/1.25 d. x/5=12/1.25

math
At the school store, 5 pens sell for $1.25. Which proportion will help find the cost of 12 pens?

math
b is the answer

math
i think c is the answer

math
Which set of decimal numbers is in the order least to greatest? A. .04,.004,.4,.043 B..004,.4,.043,.401 C..043,.401,.004,.04 D..004,.043,.4,.401

math
The area of the figure is at least 400 square meters. Write and solve a two-step inequality to represent the possible values of x. Use 3.14 for 𝛑.

math
no im stupid and dumb

math
not an answer choice

math
not an answer choice

math
not an answer choice

math
no help me

math
rectanle classroom shape

math
The length of one side is 56 feet. what is the approximate area of the room?

math
Earl cuts lawns in his neighborhood. He can cut 1 lawn in 45 minutes, and he gets paid $9.00 per lawn. What is his rate of pay per hour?

math
u meeased up in ur face

Math
two sides of a triangle are equal. The third side is 3 less than the sum of the two equal sides. The perimeter is 31 inches. Find the length of each side

One time business investment
Bobbie Rae is lending Tommy Lee $4,500 to open up a bait shop at one of the nearby lakes. Tommy Lee says he will repay Bobbie Rae at the end of 4 years with 7% interest compounded quarterly. How much will Bobbie Rae receive at the end of the 4 years? Hint: Treat this like a on...

finance mortgage payment
Purchase a home for $160,000. I intend to put down 20% and finance the remainder over 15 years at 6 3/8% interest. If my taxes & insurance totals $3,600 per year, how much will my total monthly payment be?

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