Sunday

June 26, 2016
Total # Posts: 3,353

**Biostatics**

Walleye is a common game fish. Adult walleye have a length with a mean of 48 cm and a standard deviation of 3 cm and the distribution of lengths is approximately Normal. What fraction of walleye are shorter than 45 cm in length?
*June 8, 2016*

**Calc-Math**

Evaluate the limit using l'hospitals rule. lim->0 (3^x-6^x)/x. Do not know where to even begin on this one... please help.
*June 2, 2016*

**statistics**

Consider the data below: 33.1068240, -6.3331469, 22.2903011, -6.9142991, -21.7899524, -12.1741625, 29.2973275, -34.2364631, -4.4113930, -25.7845033, -12.0375226, 17.9397860, -6.2030667, 0.3504070 , -19.4854146, -10.5979710, -27.1274107, 20.4247578, 17.0975034, -6.8416016, 0....
*May 19, 2016*

**statistics**

Z = 1.5. The mean and variance of the corresponding X are 1.3 and 5.6. Compute X:
*May 19, 2016*

**statistics**

Consider the data from an unknown distribution: 40.68, 32.15, 36.91, 29.00, 35.58, 41.55, 33.83, 29.07, 41.00, 37.68, 41.23, 37.54, 40.33, 36.82, 35.18, 31.67, 38.55, 38.34, 35.86, 40.45, 37.28, 36.65, 32.12, 32.96, 37.65, 39.44, 46.18, 24.21, 42.35, 33.05, 30.90, 42.12, 34.38...
*May 19, 2016*

**statistics**

A sample of blood is assayed for its alcohol content (BAC). The following BAC values are determined from six trials: 0.081%, 0.078%, 0.079%, 0.076%, 0.082%, 0.077% Assume the data follows a Gaussian distribution. For 84% of the possible assay data population determine with 93...
*May 19, 2016*

**statistics**

Z = 1.5. The mean and variance of the corresponding X are 1.3 and 5.6. Compute X:
*May 19, 2016*

**science**

work=force x distance rearrange and you get: force=work/distance
*May 19, 2016*

**statistics**

Z is a standard normal random variate. For Pr(c < Z) = 0.278, what is the value for c?
*May 18, 2016*

**statistics**

4.6 is a N(3.5, 1.2) random variable. What is its standard value, Z?
*May 18, 2016*

**Math**

Pouring gravel in a cone shaped pile 6 feet high Suri a diameter at the base of 8.2 feet how much gravel in poured??
*May 13, 2016*

**Maths lit, life science, economics, geography**

hey, I want to do medicine and civil engineering is this subjects are right? If not please tell me which career i can go to with this subjects after my matric? Thanks
*May 10, 2016*

**Algebra**

A scuba diver is positioned at-30 feet. How many feet will she have to rise to change her position to -12 feet?
*May 8, 2016*

**language arts**

from the giver please check my answers 1. At the beginning of the novel, Jonas describes himself as apprehensive. Why is he apprehensive? A. An unknown plane is flying overhead. B. The Ceremony of Twelve is coming soon.**** C. A loudspeaker orders everyone inside. D. A ...
*May 6, 2016*

**math**

a cyclindrical water storage tank contains 2187 cubic units of water. All the water is pumped equally into 3 congruent cubic coolers. What is the minimum length that each coller need to be?
*May 5, 2016*

**math**

ok thank you
*May 5, 2016*

**math**

write each expression using a single exponent please help 1.a^5/a^3 2.x^9/x^5 3.c^7/c^2 4. (-1)^5/(-1)^4
*May 5, 2016*

**language arts**

please check my answers 1. At the beginning of the novel, Jonas describes himself as apprehensive. Why is he apprehensive? A. An unknown plane is flying overhead. B. The Ceremony of Twelve is coming soon.**** C. A loudspeaker orders everyone inside. D. A newchild in the ...
*May 5, 2016*

**language arts**

The giver Choose the statement that best explains the meaning of the following passage: But now, with twelve coming so soon, and the volunteer hours ending, it didn't seem to meter. The freedom to choose where to spend those hours always seemed a wonderful luxury to Jonas...
*May 5, 2016*

**languge arts**

the giver which words can be used to describe jonas father very caring and sensitive**** highly intelligent and driven usually loyal and obedient
*May 5, 2016*

**language arts**

thank you guys
*May 5, 2016*

**language arts**

I mean a
*May 5, 2016*

**language arts**

2.which set of words best define the word remorse? the young child refused to show any remorse for his actions, even thought they had earned him a severe punishment. regret or shame envy or jealousy happiness or joy pride or arrogance ***
*May 5, 2016*

**Triangles**

Try to draw a triangle with side lengths of 3 Cm and 6 cm and an included angle of 120 degrees. Do given segments and angles produce a unique triangle, more than one triangle,or no triangle.
*May 5, 2016*

**Maths**

Now suppose that the weight attached to the spring is pulled down a further 5cm from its equilibrium positions and released from rest. Show that newtons second law leads to the dynamic equation (in SI units) d^2z/dt^2 + 36z - g = 0 where z(t) measures the extension of the ...
*May 3, 2016*

**language arts**

you don't know the answers?
*May 2, 2016*

**language arts**

please help
*May 2, 2016*

**language arts**

The passage is The Miracle Worker by William Gibson. Kate. Miss Annie. Annie. No. Kate (a pause). It’s a very special day. Annie (grimly). It will be, when I give in to that. [She tries to disengage HELEN’S hand; KATE lays hers on ANNIE’S.] Kate. Please. I’...
*May 2, 2016*

**language arts**

What does Annie's dialogue in the passage reveal about her character? a.she is proud and indifferent b.she is sarcastic and cynical c.she is timid and nervous d.she is confident and persistent from the miracle worker by William Gibson act 3 please help
*May 2, 2016*

**English**

does someone know the answers
*May 2, 2016*

**maths**

A. If u have 19 wheels then find the number of bicyÄ‡les and tricycles that caÃ± made. B. If u have 23 wheels then find the number of bicycles and tricycles can be made ..
*May 2, 2016*

**language arts**

from the miracle worker by William Gibson act 3
*May 1, 2016*

**language arts**

What does Annie's dialogue in the passage reveal about her character? a.she is proud and indifferent b.she is sarcastic and cynical c.she is timid and nervous d.she is confident and persistent from the miracle worker by William Gibson act 3 please help
*May 1, 2016*

**math**

Show calculations to support your answer V=ðr^2h cylinder h=12.4cm r=6.2cm show work please
*April 30, 2016*

**math**

ok thank you
*April 30, 2016*

**math**

can you show me how you got that
*April 30, 2016*

**math**

thank you
*April 30, 2016*

**math**

Determine the volume of perfume that would fit into each container. Show calculations to support your answer cylinder h=12.4cm r=6.2cm please help
*April 30, 2016*

**math**

thank you
*April 24, 2016*

**math**

mexico?
*April 24, 2016*

**math**

spain?
*April 24, 2016*

**math**

the table below shows the population of four countries for the year 2006 expressed in scientific notation. Population in 2006 country population Lebanon 3.90x10^6 Mexico 1.08x10^8 Peru 2.84x10^7 Spain 45.5x10^6 of the countries listed, which one had the largest population in ...
*April 24, 2016*

**math**

thank you
*April 23, 2016*

**math**

please someone help
*April 23, 2016*

**math**

which is equivalent to the expression shown (3.3x10^3)(1.8x10^4)? 5.94x10^7 5.94x10^8 594x10^6 59.4x10^5 please help
*April 23, 2016*

**math**

2,500
*April 23, 2016*

**math**

an astronomer estimated that a canyon on another planet was 2.5x10^3 kilometers long which is equivalent 25,000km 2,500km 0.025km 0.0025km please help
*April 23, 2016*

**math**

thank you
*April 23, 2016*

**math**

which equation is true? square root 8^2=4 square root 6^2=24 square root 5^2=5 square root 3^2=81 please help
*April 23, 2016*

**math**

thank you!!!
*April 23, 2016*

**math**

2500
*April 23, 2016*

**math**

which is equivalent to the expression shown? 10^2 • 5^2 2,500 250**** 500 200 please help
*April 23, 2016*

**Englidh**

Like everyone else, I want to be well liked, but I will not (grovel,fluctuate)before public opinion when I am firmly convinced that it is wrong.
*April 20, 2016*

**Maths**

Is the sine, cosine and tangent using in right-angled triangles only?
*April 20, 2016*

**Math**

James wants to reserve a room at the party hall for his birthday. The deposit is $175 and for 6 hours it cost $625. What percent of the cost of the room is the deposit? Can someone show me how to work this problem out?
*April 12, 2016*

**Math**

James wants to reserve a room at the party hall for his birthday. The deposit is $175 and for 6 hours it cost $625. What percent of the cost of the room is the deposit?
*April 12, 2016*

**Biology**

Why do the nuclei of the human white blood cells turn blue in a prepared blood slide?
*April 12, 2016*

**Chemistry**

150 moles
*April 10, 2016*

**Chemistry**

In the equation 2 NaN3----2 Na + 3 N2// how much N2 would be produced if 100 grams of NaN2 completely reacted at STP?
*April 10, 2016*

**Chemistry**

Make NaCl from NaHCO3 and HCl-Starting with 3.0 grams of NaHCO3-what would be a source of error on yield of purity of NaCl and what modifications could be made?
*April 10, 2016*

**Algebra**

Find the hydrogen ion concentration of a saturated solution of calcium hydroxide whose pH is 13.3. (If you enter your answer in scientific notation, round the decimal value to one decimal place. Use equivalent rounding if you do not enter your answer in scientific notation.)
*March 30, 2016*

**math**

show your work
*March 30, 2016*

**accounting**

martin and company purchased a fixed asset on 1/4/2010 for £250000.depreciation is o be provided at 10% annually according to the straight line method. the books are closed on 31wst march every year. prepare fixed asset account and depreciation account for the first ...
*March 30, 2016*

**Chemistry**

Which element has an ion that is smaller than an ion of calcium?
*March 29, 2016*

**math**

thx
*March 24, 2016*

**math**

what is .69 repeating in its simplest form? I need help
*March 24, 2016*

**algebra**

A ball is thrown straight up from a rooftop 9696 feet high. The formula below describes the ball's height above the ground, h, in feet, t seconds after it was thrown. The ball misses the rooftop on its way down. The graph of the formula is shown. ...
*March 21, 2016*

**Algebra**

The force needed to keep a car from skidding on a curve varies inversely as the radius of the curve and jointly as the weight of the car and the square of the car's speed.Suppose that 400 pounds of force keeps a 1600-pound car from skidding on a curve of radius 800ft at ...
*March 11, 2016*

**math 1149**

For the triangle shown, find the length AD. (Assume u = 19, v = 19, Úx = 25‹, and Úy = 25‹. Round your answer to two decimal places.)
*March 10, 2016*

**history**

Examples of Afro-Asian ethnicities ?
*March 8, 2016*

**Math**

Five times the larger of two numbers plus four times the smaller is 271. Three times the larger less twice the smaller is 57. find the numbers
*February 29, 2016*

**biology**

the amount of energy needed to start two reactants to form a product is?
*February 28, 2016*

**Algerbra**

Find three cosecutive odd intrgers such that when twice the smallest is added to five times the largest the result is -253
*February 28, 2016*

**hist/175**

Do you think that the Korean War was merely a civil war in which the United States supported one side, or should it be considered an international war in which the United States used the United Nations to further its anticommunist policies? Why?
*February 27, 2016*

**ps 27**

The sum of two numbers is 120. If four times four times the smaller number is subtracted from the larger number, the result is 15. Find the two numbers.
*February 24, 2016*

**Math **

If the temperature is a minus eight degrees and rises four degrees every hour for four hours, what will the temperature be??
*February 23, 2016*

**physics**

A 5.4-kg bucket of water is raised from a well by a rope. If the upward acceleration of the bucket is 3.7 m/s2, find the force exerted by the rope on the bucket. N
*February 21, 2016*

**physics**

A 61-kg man standing on a scale in an elevator notes that as the elevator rises, the scale reads 815 N. What is the acceleration of the elevator? m/s2 upward
*February 21, 2016*

**physics**

A bag of sugar weighs 3.00 lb on Earth. What would it weigh in newtons on the Moon, where the free-fall acceleration is one-sixth that on Earth? N Repeat for Jupiter, where g is 2.64 times that on Earth. N Find the mass of the bag of sugar in kilograms at each of the three ...
*February 21, 2016*

**physics**

A 5.4-kg bucket of water is raised from a well by a rope. If the upward acceleration of the bucket is 3.7 m/s2, find the force exerted by the rope on the bucket.
*February 18, 2016*

**physics**

A 61-kg man standing on a scale in an elevator notes that as the elevator rises, the scale reads 815 N. What is the acceleration of the elevator? m/s2 upward
*February 18, 2016*

**physics**

A bag of sugar weighs 3.00 lb on Earth. What would it weigh in newtons on the Moon, where the free-fall acceleration is one-sixth that on Earth? N Repeat for Jupiter, where g is 2.64 times that on Earth. N Find the mass of the bag of sugar in kilograms at each of the three ...
*February 18, 2016*

**physics**

A brick is thrown upward from the top of a building at an angle of 35° to the horizontal and with an initial speed of 15 m/s. If the brick is in flight for 2.7 s, how tall is the building? (in m) could someone help me please!!!
*February 7, 2016*

**physics**

thank you so much DAMON i really appreciate you help i was stuck on this problem for houra. Thank you again. and what time do you tutor and what days.
*February 7, 2016*

**physics**

A student stands at the edge of a cliff and throws a stone horizontally over the edge with a speed of 16.0 m/s. The cliff is h = 25.0 m above a flat horizontal beach, as shown in the figure below. How long after being released does the stone strike the beach below the cliff? s...
*February 7, 2016*

**physics**

A brick is thrown upward from the top of a building at an angle of 35° to the horizontal and with an initial speed of 15 m/s. If the brick is in flight for 2.7 s, how tall is the building?
*February 5, 2016*

**pysics**

for the first part i got 2.26 seconds, but for the: WHAT SPEED AND ANGLE OF IMPACT DOES THE STONE LAND? IM NOT GETTING THE RIGHT ANSWER FOR THE SPEED WITH THE CALCULATION IM GETTING -22.2M/S WHICH IS WRONG. AND SO IS THE ANGLE.
*February 5, 2016*

**pysics**

A student stands at the edge of a cliff and throws a stone horizontally over the edge with a speed of 16.0 m/s. The cliff is h = 25.0 m above a flat horizontal beach, as shown in the figure below. How long after being released does the stone strike the beach below the cliff? s...
*February 5, 2016*

**general chemistry**

mercury has density of 13.53 g/mL. what is the mass of 345mL of mercury? D=13.53g/mL Mass=345mL 13.53/345=0.039217391 i just do not think i am doing this right
*February 5, 2016*

**physics help please**

A brick is thrown upward from the top of a building at an angle of 35° to the horizontal and with an initial speed of 15 m/s. If the brick is in flight for 2.7 s, how tall is the building? in (m)
*February 4, 2016*

**physics**

A ball is thrown straight upward and returns to the thrower's hand after 2.00 s in the air. A second ball thrown at an angle of 40.0° with the horizontal reaches the same maximum height as the first ball. (a) At what speed was the first ball thrown? m/s (b) At what ...
*February 4, 2016*

**Algebra**

Thank you!
*February 3, 2016*

**Algebra**

Suppose that a constant force is applied to an object. Newton's Second Law of Motion states that the acceleration of the object varies inversely with its mass. A constant force acting upon an object with mass 12 kg produces an acceleration of 2m/s^2. The acceleration of ...
*February 3, 2016*

**Algebra**

Laura wants the average amount of money she spends in four days to be no more than $64. On the first three days she spends $71, $62 and $59. What is the greatest amount she can spend on day 4?
*February 2, 2016*

**math**

Tierra brought 4 3/8 yards of ribbon. 2 2/8 was blue and 1 2/8 was red. The rest of the ribbon was yellow. how many yards was yellow?
*February 1, 2016*

**Mtn view **

How many dimes & nickels make up 19.95?
*January 13, 2016*

**Fraction, word problem**

Karen has used 12 feet of ribbon for a project. This represents 3/8 of the total amount of ribbon. How much ribbon did she have at the start of her project?
*January 12, 2016*

**Physics**

If the velocity is given as v=t^2-2t+2 what is the acceleration when v=10m/s?
*January 11, 2016*

**math**

idek
*January 11, 2016*

**Physics**

A ladder ABC of length 20m is leaning against a wall at an angle from the horizontal. There is a roller at the top of the ladder that rests against the vertical wall. The coefficient of friction between the ladder and the horizontal surface at A is 0.5. Determine: (a) the ...
*January 9, 2016*