Sunday
June 26, 2016

Posts by D

Total # Posts: 375

choice
Varsity Press, a publisher of college textbooks, received a $70,000 promissory note at 12% ordinary interest for 60 days from one of its customers, Reader’s Choice Bookstores. After 20 days, Varsity Press discounted the note at the Grove Isle Bank at a discount rate of ...
September 16, 2013

math
From 70 feet away from the base of a tree on level ground, the angle to the top of a tree is 60⁰. What is the height of the tree? What is the approximate distance from the vantage point to the top of the tree, to one decimal point? (Assume that the tree is perpendicular ...
June 12, 2013

Algebra
9 more than 2 times x
June 9, 2013

physics
if the * is the degrees, then you need to draw the vectors according to their direction. you can use a graph paper and make your own scale: say one unit cube is 10km/hr. then use the protractor to draw the vectors taking an horizontal line as zero degrees. then draw the ...
June 6, 2013

Science
which of the following is an example of a mineral? silver, lava, fossils, sand, I say Lava
May 15, 2013

statistics
9,873.35
April 23, 2013

stats
suppose that a population of people is 1200. .25 of the population is white. we take a random sample of 100 people. What is the probabilit that more than .29 of these people are white?
April 16, 2013

U.S/history AP
King Cotton works for me
April 13, 2013

Physics
i love heewahh
April 9, 2013

chemistry
A metal block of mass 11.5 g gives off 360 J of heat while cooling from 99.7 to 32.5 oC. What is the specific heat of the metal in J g-1 oC-1?
March 26, 2013

chemistry
A metal block of mass 11.5 g gives off 360 J of heat while cooling from 99.7 to 32.5 oC. What is the specific heat of the metal in J g-1 oC-1?
March 26, 2013

Science
Name 3 ways screws are used?
March 21, 2013

math
which fraction cannot be expressed as repeat decimal? a) 1/11 b)1/4 c 5/8 d 2/3
March 21, 2013

math
solve the equation: 3x-8=12
March 21, 2013

US History
ddd
March 18, 2013

German
there is none. im trying to determine if that sentence is grammatically correct or incorrect.
March 1, 2013

German
Ich schminke mich lieber als er sich. is this incorrect or correct?
March 1, 2013

Cosmology
Comparison of emissions from elliptical galaxies in x-ray and optical bands
March 1, 2013

physics
hi
February 21, 2013

chemistry
Iwish to prepare 3% NH3 from 20ml strong NH4OH and 180ml H2O.Can you help me?
February 7, 2013

S.S
dis is funny
January 30, 2013

Chemistry
tyr-trp-phe-val-lie
January 27, 2013

Binomial Math
.2150
January 27, 2013

Math
Need help with 4th grade fractions.
January 24, 2013

Math
Jeramie has a jar of nickels and dimes. There are 200 coins worth $14.00. How many of each type of coin are in the jar. :)
January 23, 2013

economics
Mary earns $100/day at a flower shop. She will take 2 days off without pay to attend an out of town wedding. Transportation will cost $180 round trip. Hotel $99/day for 2 nights. What is the opprotunity cost?
January 13, 2013

geometry
angle xoz (5m-5) angle yoz (7m+29) these are supplementary angles. How do you solve?
January 4, 2013

Chemistry
What preperation produces a 2.0 Mole solution of C6H12O6? a) 90.0 grams of C6H12O6 dissolved in 500.0 mL of solution b) 180.0 grams of C6H12O6 dissolved in 1000mL of solution c) 90 Grams of C6H12O6 dissolved in 1000mL of solution D) 180.0 Grams of C6H12O6 dissolved in 500.0mL ...
December 19, 2012

English
yes it is C
December 17, 2012

The Age Of Jefferson To The American Expansion
18 is not D because i got it wrong when i answer the questions
December 7, 2012

Finance
questo
December 2, 2012

CHEMISTRY
What is oxygen extensive properties?
November 30, 2012

chemistry
Rate Constant * Concentration^2
November 29, 2012

Math
12 over 7 simplified
November 29, 2012

Math
-5 over 8 times -3
November 29, 2012

Math
10x and 45x to the power of 4
November 29, 2012

chemistry
Rate Constant * Concentration^2
November 29, 2012

chemistry
Rate Constant * Concentration^2
November 29, 2012

Chemistry
thanks
November 29, 2012

Chemistry
Rate Constant * Concentration^2
November 29, 2012

Chemistry
it is wrong
November 29, 2012

Chemistry
thanks
November 24, 2012

Chemistry
Thanks
November 24, 2012

Chemistry
thanks
November 22, 2012

Chemistry
thanks
November 22, 2012

Chemistry
thanks
November 22, 2012

Chemistry
thanks
November 22, 2012

Physics
What is the max speed a car can go on a race track with a radius of 80 meters, the coefficient of friction between the tires and the road is .30
November 19, 2012

Physics
A baseball (m = 135 g) approaches a bat horizontally at a speed of 40.4 m/s (90 mi/h) and is hit straight back at a speed of 45.7 m/s (102 mi/h). If the ball is in contact with the bat for a time of 1.00 ms, what is the average force exerted on the ball by the bat? Neglect the...
November 18, 2012

Math
C. Circumference
November 14, 2012

Statisitcs
The mean height of fully grown birch trees are 18 feet with a standard deviation of 1.2 feet, normally distributed. Random samples of size 9 are drawn from this population and the mean of each sample is determined. Find that mean and the standard error of the mean, and the ...
November 14, 2012

Physics
An astronaut in his space suit and with a propulsion unit (empty of its gas propellant) strapped to his back has a mass of 146 kg. The astronaut begins a space walk at rest, with a completely filled propulsion unit. During the space walk, the unit ejects some gas with a ...
November 13, 2012

Physics
The skateboarder in the drawing starts down the left side of the ramp with an initial speed of 5.4 m/s. If nonconservative forces, such as kinetic friction and air resistance, are negligible, what would be the height h of the highest point reached by the skateboarder on the ...
November 12, 2012

physics
A hockey goalie is standing on ice. Another player fires a puck (m = 0.22 kg) at the goalie with a velocity of +63 m/s (a) If the goalie catches the puck with his glove in a time of 7.0 10-3 s, what is the average force (magnitude and direction) exerted on the goalie by the ...
November 12, 2012

Physics
A person pushes a 16.0-kg shopping cart at a constant velocity for a distance of 26.0 m. She pushes in a direction 22.0° below the horizontal. A 38.0-N frictional force opposes the motion of the cart.
November 11, 2012

physics
The National Aeronautics and Space Administration (NASA) studies the physiological effects of large accelerations on astronauts. Some of these studies use a machine known as a centrifuge. This machine consists of a long arm, to one end of which is attached a chamber in which ...
November 7, 2012

Physics
On a banked race track, the smallest circular path on which cars can move has a radius of 115 m, while the largest has a radius 165 m, as the drawing illustrates. The height of the outer wall is 18 m.
November 7, 2012

7th grade science Ms. Sue pleae only 1 question
fdf
November 2, 2012

Physics
The drawing shows a circus clown who weighs 710 N. The coefficient of static friction between the clown's feet and the ground is 0.49. He pulls vertically downward on a rope that passes around three pulleys and is tied around his feet. What is the minimum pulling force ...
October 25, 2012

Physics
Well, hard to imagine the picture, but by the description the wires each side are at 16 deg. back on each side of the tooth, i.e. each at 16 deg. to the face of the tooth. Each has 18N. tension. (sin 16) x 18 = 4.9608N. Double it (2 wires), = 9.9216N. back on the tooth.
October 25, 2012

phyics
A train at a constant 44.0 km/h moves east for 42 min, then in a direction 45.0° east of due north for 17.0 min, and then west for 51.0 min. What are the (a) magnitude (in km/h) and (b) angle (relative to north, with east of north positive and west of north negative) of ...
October 10, 2012

Math
A room has dimensions 2.24 m (height) × 5.30 m × 6.55 m. A fly starting at one corner flies around, ending up at the diagonally opposite corner. (a) What is the magnitude of its displacement? (b) If the fly walks rather than flies, what is the length of the ...
October 9, 2012

math (calculus)
A room has dimensions 2.24 m (height) × 5.30 m × 6.55 m. A fly starting at one corner flies around, ending up at the diagonally opposite corner. (a) What is the magnitude of its displacement? (b) If the fly walks rather than flies, what is the length of the ...
October 9, 2012

Math
(2.0)t^2/2 = (9.5)t t=????
October 9, 2012

Physics
A train at a constant 44.0 km/h moves east for 42 min, then in a direction 45.0° east of due north for 17.0 min, and then west for 51.0 min. What are the (a) magnitude (in km/h) and (b) angle (relative to north, with east of north positive and west of north negative) of ...
October 9, 2012

physic
f(t)=ct
October 4, 2012

physics
A 5.9-kg rock and a 3.0 10-4-kg pebble are held near the surface of the earth. (a) Determine the magnitude of the gravitational force exerted on each by the earth.(b) Calculate the magnitude of the acceleration of each object when released.
October 3, 2012

Algebra,Geometry
You could actually set "X"=0 to find Y, and then plug in a "0" for Y to get X.
September 30, 2012

Math
Thank you!
September 24, 2012

Math
I think. I am honestly not sure what to do.
September 24, 2012

Math
The volleyball court -if it id 80 ft long and 50 ft wide, how would you find the dimensions of the court? Explain please! Remember that I am a 6th grader. Please don't give me a 10-12th grade answer.
September 24, 2012

grade 9 science
a student wants to estimate the population size and density of birch trees in a woodlot measuring 100 m by 100 m. On a diagram of the woodlot, she splits the area into a 10 by 10 grid and randomly selects 10 sample quadrants - (0,0), (1,4), (2,6), (3,9), (4,3), (5,5), (6,1), (...
September 10, 2012

d
the school auditorium has 8 rows of seats, divided in three rows. Each section has 15 seats. How many seats are there in total?
September 5, 2012

health
The lower thigh muscles are rectus femoris, vastus lateralis and medialis. Located in the back of your leg are the hamstrings. These muscles help you run, jump, and walk!
August 22, 2012

Macroeconomics
D Marginal Cost
July 10, 2012

statistics
In a survey of 400 college students, 40 were left-handed. Treating the sample as if it were random and using 0.015 as the standard deviation of the sampling distribution of the sample proportion, what is the lower bound of a 95% confidence interval for the population proportion?
May 18, 2012

marketing
Unit 5 Individual Project Deliverable Length: 4-5 body pages, 1 PERT chart, 1 Gantt chart Details: Using your current work organization (or an organization of interest) as the subject matter, research the elements of business and prepare an APA formatted paper that: Analyzes ...
April 22, 2012

Calculus
2) 2*x*e^(-4) 3) 2*x*e^(sin(x))+x^2*cos(x)*e^(sin(x)) 1) e^(x)*sin(x)^2+2*e^(x)*sin(x)*cos(x)
April 20, 2012

maths
a) 1/6,1/7,1/8,...
April 20, 2012

Science
idk!!
April 8, 2012

simple subject
What is the simple subject in: The black and white Schnauzer barked all day long.
March 27, 2012

math
0.009615
March 26, 2012

chemistry
Yeah volumes at the bottom of the page are switched
March 12, 2012

biology
Why is a denaturing solution used in the Southern blotting technique?
March 9, 2012

physics
DOnt know
February 29, 2012

chemistry
32.2
February 29, 2012

math
how many line segments are in the word FAME?
February 28, 2012

physics
278
February 19, 2012

algebra
how do you solve -x+2y=2
February 8, 2012

Physics C
A point charge of 5.5 µC is located at the center of a spherical shell of radius 30 cm, which has a charge −5.5 µC uniformly distributed on its surface. Given: ke = 8.98755 × 10^9 Find the electric field for a point inside the shell a distance 12 ...
February 1, 2012

World Civ
What were the social and administrative foundations of the absolute power of Ming Quing emperors?
February 1, 2012

World Civ
What were the social and administrative foundations of the absolute power of Ming Quing emperors?
February 1, 2012

World Civ
How did advances in military technology change warfare in 16th century Japan? How was the strategic balance of power reflected in the government created by Tokugawa leyasu?
February 1, 2012

World Civ
Why were so many people living in the European countryside dependent on aristocracy? (during and before the agricultural revolution in Europe)
February 1, 2012

geometry
Quadrilateral QRST is a square. If the measure of QR is 3x – 6 and TS is 6 - x. Find the area of the square.
January 20, 2012

english
Actually, can you just post your email address, and then we can figure stuff out through email?
January 9, 2012

english
When you get the answers to the final....please post them!
January 9, 2012

Physics
fhf
January 5, 2012

english
Explain your changes?
January 3, 2012

home economics
When were the Home Economics Courses dropped or greatly reduced by the school system in Ontario.
November 27, 2011

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