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Questions Asked on October 28, 2011

(a) Calculate the absolute pressure at the bottom of a fresh-water lake at a depth of 23.2 m. Assume the density of the water is
1. 4 answers
2. asked by Allie
3. 11,421 views
Suppose that p(x) is the density function for heights of American men, in inches, and suppose that p(69)=0.22. Think carefully
1. 1 answer
2. asked by Cesar
3. 5,847 views
why didn't the circus managers want their human cannonball to quit?
1. 15 answers
2. asked by marcus
3. 5,757 views
how many kilojoules of heat must be transferred to a 480 g aluminum pizza pan to raise its temperature from 22 degree c to 234
1. 3 answers
2. asked by Justin
3. 4,992 views
A stationary bicycle is raised off the ground, and its front wheel (m = 1.3 kg) is rotating at an angular velocity of 14.0 rad/s
1. 1 answer
2. asked by Anonymous
3. 3,995 views
Find the value of X:Given: segment RS is congruent to segement ST, measure angle RST = 7x-54, measure angle STU = 8x
1. 6 answers
2. asked by Kirby
3. 3,712 views
A rectangular piece of cardboard measures 17cm by 14cm. Strips of equal width are cut off one side and one end. The area of the
1. 5 answers
2. asked by Samuel
3. 3,462 views
1)SOLVE:a) 2nP3 = 2(nP4) b)6(n+1P2) = 3nP2 2) If (nC12 = (nC8), find (nC17) and (22Cn) 3)simplify. a) n(squared) (n-2)! -
1. 3 answers
2. asked by Jane
3. 3,373 views
When x² - 3x + 2k is divided by x + 2, the remainder is 7. Find the value of k. Use synthetic division to do so.
1. 1 answer
2. asked by Peter
3. 3,360 views
Jan says if you double each of the dimensions of a rectangular box, it will take twice as much wrapping paper to wrap it. How do
1. 2 answers
2. asked by unknown
3. 3,078 views
Calculate the solid needed to make a 250ml solution that is 0.34M in sodium cation, using sodium sulfate decahydrate. I came up
1. 1 answer
2. asked by Denise
3. 3,066 views
The manager of a large apartment complex knows from experience that 80 units will be occupied if the rent is 460 dollars per
1. 2 answers
2. asked by Anonymous
3. 3,062 views
An arcade uses 3 different colored tokens for their game machines. For $20 you can purchaseany of the following mixtures of
1. 3 answers
2. asked by laurie
3. 2,775 views
The sum of the firest 9 terms of an A.P is 72 and the sum of the next 9 terms is 71, find the A.P
1. 2 answers
2. asked by Ahmad
3. 2,635 views
a 160g hockey puck slides horizontally along the ice, and the coefficient of kinetic friction between puck and ice is 0.15. if
1. 2 answers
2. asked by annie
3. 2,557 views
Predict the formal bond angles about the central atom for the following molecules: TeBr4Express your answers using three
1. 3 answers
2. asked by Caitlin
3. 2,524 views
x^3 + y^3 = 6xyAt which point is the first quotient of the tangent is horizontal?
1. 2 answers
2. asked by Yousef
3. 2,049 views
Suppose that p(x) is the density function for heights of American men, in inches, and suppose that p(69)=0.22. Think carefully
1. 1 answer
2. asked by Cesar
3. 1,998 views
A ball has a diameter of 3.70 cm and average density of 0.0841 g/cm3. What force is required to hold it completely submerged
1. 1 answer
2. asked by Allie
3. 1,802 views
guy wire is attached to a pole for support. If the angle of elevation to the pole is 67° and the wire is attached to the ground
1. 2 answers
2. asked by shye
3. 1,782 views
A car is moving at 20 m/s. The driver applies the brakes and the car decelerates at 1 m/s2. How long will it take the car to
1. 2 answers
2. asked by Terry
3. 1,746 views
Calculate the mass of solid neded to make 500ml of solution that is 0.25m in sulfate ion, using sodium sulfate decahydrate.
1. 2 answers
2. asked by Emily
3. 1,650 views
5.85 g of sodium chloride(NaCl) is dissolved in 250 mL OF solution. Calculate mass percentage of the solute.
1. 3 answers
2. asked by Dewa
3. 1,642 views
Find all values of a such that y=a/(x−8) and y=x^2−16x+64 intersect at right angles?please how the steps :)
1. 5 answers
2. asked by mehak
3. 1,579 views
Ethanol and carbon dioxide have approximately the same molecular weight, yet carbon dioxide is a gas at STP and ethanol is a
1. 1 answer
2. asked by Anonymous
3. 1,562 views
Calculate the pressure exerted on your finger if you hold up a 15-pound box of apples.
1. 1 answer
2. asked by Steve
3. 1,534 views
a figure skater must trace a figure eight on the ice that consists of two perfect circles, each with radius 11 feet. How far
1. 1 answer
2. asked by unknown
3. 1,524 views
penn foster exam number 05054100 need all the answers.
1. 2 answers
2. asked by moo
3. 1,497 views
as 390 g of hot milk cools in a mug, it transfers 30,000 J of heat to the environment. What is the temperature change of milk?
1. 1 answer
2. asked by Justin
3. 1,485 views
A draw contains 3 black socks and 2 white socks. A sock isdrawn at random and then replaced. Find each probability. p(2 black)
1. 1 answer
2. asked by sherry
3. 1,471 views
for the list of chemicals below, write complete, balanced equations for all possible reactions that would lead to an insoluable
1. 1 answer
2. asked by carly
3. 1,457 views
A plane passes over point A with a velocity of 8000 m/s north. Forty seconds later it passes over point B at a velocity of
1. 1 answer
2. asked by .......
3. 1,449 views
Maria has $5.05 in quarters and dimes. The number of quarters exceeds twice the number of dimes by 1. Find the number she has of
1. 1 answer
2. asked by Emily
3. 1,441 views
assume that a parcel of air is forced to rise up and over a 6000 foot high mountain. The intial temperature of the parcel at sea
1. 0 answers
2. asked by nissa
3. 1,440 views
a 100 cm cube gas cylinder filled with chlorine under 160 torr pressure is connected by stop clock with another cylinder of 400
1. 3 answers
2. asked by afshan
3. 1,390 views
Two parallel chords of lenght 24cm and 10cm which lie on opposite side of a circle are 17cm apart. Calculate the radius of the
1. 3 answers
2. asked by Omol
3. 1,372 views
find all numbers for which the rational expression is undefinded8/8z+7 I think the expression is undefined for all real numbers
1. 5 answers
2. asked by Katie
3. 1,371 views
A Norman window has the shape of a semicircle atop a rectangle so that the diameter of the semicircle is equal to the width of
1. 2 answers
2. asked by Anonymous
3. 1,325 views
. There is a strongly linear association between the weight of a football player and the time in seconds it takes for that
1. 1 answer
2. asked by Cath
3. 1,281 views
A small publishing company is planning to publish a new book. The production costs will include one-time fixed costs (editing)
1. 1 answer
2. asked by Billy
3. 1,273 views
Find the value of zα/2 to construct a confidence interval with level:a. 95% b. 98%
1. 2 answers
2. asked by Ayuda!!!
3. 1,257 views
Need to draw a single line under the Complete Subject, and a double line under the Complete Prediate. Thanks?1. Hundreds of were
1. 2 answers
2. asked by Ann
3. 1,233 views
The width of a rectangle is 4 meters more then 1/3 its lenght. the perimeter is 64. Find the lenght and width
1. 2 answers
2. asked by sam
3. 1,226 views
What is the next number in the sequence 270, 27, 2.7,0.27
1. 2 answers
2. asked by William
3. 1,223 views
A 1000·kg car traveling with a velocity of 13·m/s north collides head-on with a 2000·kg truck traveling with a velocity of
1. 2 answers
2. asked by jr
3. 1,195 views
What effect did ataturks radicalin turkey have on nationalists in neighoring iran?A. Iranian nationalists scaled back their
1. 4 answers
2. asked by Ciara's Sister
3. 1,189 views
(5) In this experiment MnO4-is reduced to Mn2+ by the unknown. What is the equivalent weight of MnO4- for this experiment? 52.68
1. 1 answer
2. asked by bry
3. 1,169 views
Find the ending balance in an account that opens with $6,950, earns 10.5% interest compounded monthly, and is held for 15 years.
1. 2 answers
2. asked by Help
3. 1,163 views
I was wondering if I paraphrased correctly.The original article is:(my work is at the end ) Known as the "Napoleon of the
1. 0 answers
2. asked by zahra
3. 1,137 views
How many grams of methane must be combusted to heat 1.05 of water from 24.0 to 89.0, assuming as a product and 100% efficiency
1. 0 answers
2. asked by Collin
3. 1,134 views
(a) Calculate the mass flow rate (in grams per second) of blood (ρ = 1.0 g/cm3) in an aorta with a cross-sectional area of 2.0
1. 0 answers
2. asked by caitlin
3. 1,123 views
a phone company charges a flat monthly fee of $15 for cell phone services, plus an additional fee for every minute you talk. in
1. 2 answers
2. asked by abigail
3. 1,103 views
juan says,"When you put together unequal groups, you can only add." is he correct? Explain
1. 2 answers
2. asked by Alex
3. 1,089 views
a 50 kg person has a weight of 80 N on the surface of the moon what is the acceleration due to gravity
1. 1 answer
2. asked by Lea
3. 1,084 views
An arrow is shot at 29.0° above the horizontal. Its initial speed is 54 m/s and it hits the target.(a) What is the maximum
1. 2 answers
2. asked by Alex
3. 1,077 views
Is anarchy used correctly in this sentence?: As so as the teacher step out of the class room to copys some paper the class was
1. 1 answer
2. asked by Kevin
3. 1,063 views
Forecasts of economists have.....1. overestimated inflation2. underestimated inflation 3. generally been accurate on inflation
1. 0 answers
2. asked by carrie
3. 1,061 views
A town decides to build a playground using one of the existing walls beside an elementary school. What is the maximum area they
1. 2 answers
2. asked by Anna
3. 997 views
A 20kg block is being pulled by a 150N force,the block is initially at rest,if the coefficient of frictionbetween the block and
1. 1 answer
2. asked by amaka
3. 993 views
You dissolve 0.213 g of acid in 25.0 mL of water. To react the acidic solution to the endpoint you add 23.80 mL of 0.1024 M
1. 1 answer
2. asked by Andres
3. 990 views
The sum of the first 9 terms of an A.P is 72 and the sum of the next 9 terms is 71, find the A.P
1. 2 answers
2. asked by Anonymous
3. 990 views
a 425 g cylinder of brass is heated to 90/0 degree C and placed in a calorimeter containing 334 g of water at 25.0 degree C. The
1. 0 answers
2. asked by Justin
3. 980 views
This is a final essay. Can someone please read over it and let me know where they think I need improvement.Even though People
1. 3 answers
2. asked by Anonymous
3. 971 views
When the Sun is directly overhead, a hawkdives toward the ground at a speed of 3.07 m/s. If the direction of his motion is at an
1. 0 answers
2. asked by rachel
3. 970 views
why is glucose converted into hexose bisphosphate in glycolysis ??
1. 0 answers
2. asked by Anonymous
3. 931 views
A cylinder is inscribed in a right circular cone of height 5.5 and radius (at the base) equal to 7. What are the dimensions of
1. 1 answer
2. asked by Anonymous
3. 930 views
For this assignment you are to look at the ways courtship rituals have (or have not) changed over the last generation or two. In
1. 3 answers
2. asked by Scott
3. 920 views
A window washer uses the chair and pulley arrangement shonw in the figure to lift himself up the side of a building. The window
1. 1 answer
2. asked by Anonymous
3. 918 views
ray makes an array that has 4 rows of 4 counters. he wants to make two more arrays using the same number of counters. he wants
1. 1 answer
2. asked by hadyn
3. 862 views
One of the by-products of a reaction is 2-methyl-2-butene.A) Suggest a mechanistic pathway for the formation of this alkene. B)
1. 0 answers
2. asked by Aly
3. 858 views
p(x)+q(x) and p(x)-q(x),where p(x)=x3-2x2(square)-3 and p(x)=x4+x3+x2-7x
1. 1 answer
2. asked by Debashish Banchhor
3. 857 views
A swimming pool has two identical sides in the shape of a trapezium.All other sides are rectangular. The length of the pool is
1. 2 answers
2. asked by lissa
3. 851 views
what did a diet at the asclepion consist of?
1. 1 answer
2. asked by lissa
3. 812 views
Describe what a chemical bond is in terms of electron density between two atoms.What are the bond angles for an octahedral
1. 2 answers
2. asked by Caitlin
3. 810 views
Solve the linear equation. Solve for x and yy=-3/4x + 1/4 y=3/4x - 3/4
1. 1 answer
2. asked by Amy
3. 807 views
An 8.65-kg block slides with an initial speed of 1.52 m/s up a ramp inclined at an angle of 27.6° with the horizontal. The
1. 0 answers
2. asked by Jim
3. 791 views
The fundamental resonance on a string is 60 cm length fixed at both ends is 440Hz. What is the speed of a wave traveling on this
1. 2 answers
2. asked by Fox
3. 786 views
1) Observe an elementary mathematics lesson. Write an essay of 1,500-1,750 words that addresses the following issues and
1. 1 answer
2. asked by Kimberly
3. 783 views
How many grams of methane must be combusted to heat 1.05 of water from 24.0 to 89.0, assuming as a product and 100% efficiency
1. 1 answer
2. asked by Collin
3. 781 views
In sowing seeds of peace the purpose of the camp in maine can est be described as :A. To educate arab and israeli teens B. To
1. 1 answer
2. asked by Ciara's Sister
3. 777 views
If one bacteria will double every 20 minutes, how many bacteria will there be I'm 24 hours
1. 1 answer
2. asked by dest
3. 772 views
a rectangular sandbox has dimensions of 4 feet by 5 feet how many yards is the perimeter of the sandbox?
1. 3 answers
2. asked by marisol
3. 764 views
A thin rectangular plate of uniform area density σ1 = 1.01 kg/m2 has a length a = 0.580 m and a width b = 0.240 m. The lower
1. 0 answers
2. asked by Lady
3. 752 views
You have been asked to help upgrade the LAN at a very successful CPA firm with five departments in one building and a total of
1. 1 answer
2. asked by me
3. 744 views
How do I find the derivative of 6 + 8cosx?
1. 1 answer
2. asked by lily
3. 739 views
tan−1(4x2y) = x + 5xy2
1. 1 answer
2. asked by DeVonne
3. 731 views
What pressure is exerted at the bottom of a tube of mercury 15 cm high?
1. 1 answer
2. asked by Steve
3. 730 views
If two different masses have the same kinetic energy, their momenta are:1. inversely proportional to their masses 2. inversely
1. 0 answers
2. asked by Anonymous
3. 724 views
Which two of the 12 science processes do you feel are the most important for students to understand early in their science
1. 1 answer
2. asked by Chad
3. 717 views
x + y = 4 , x + z = 4, y + z = 4
1. 2 answers
2. asked by barbie
3. 714 views
Betty Bodycheck (mB = 55.1 kg, vB = 22.0 km/h in the positive x-direction) and Sally Slasher (mS = 41.2 kg, vS = 28.0 km/h in
1. 1 answer
2. asked by Jake
3. 700 views
90.0 of is initially at room temperature (22.0). A chilled steel rod at 2.0 is placed in the water. If the final temperature of
1. 1 answer
2. asked by MARYD
3. 699 views
A large truck with a mass of 6500·kg and going 20·m/s east collides with a car whose mass is 1100·kg and which is at rest. If
1. 1 answer
2. asked by jen
3. 697 views
Bob is reading a 300-page book. After one hour, he had finished 8% of the book. Assuming that he reads at a constant rate, how
1. 1 answer
2. asked by Anonymous
3. 691 views
A sample of an unknown material appears to weigh 285 N in air and 165 N when immersed in alcohol of specific gravity 0.700.(a)
1. 0 answers
2. asked by caitlin
3. 690 views
Bob is reading a 300-page book. After one hour, he had finished 8% of the book. Assuming that he reads at a constant rate, how
1. 2 answers
2. asked by Anonymous
3. 685 views
5) Find the points on the curve below at which the tangent is horizontal. Use n as an arbitrary integer. (Select all that
1. 1 answer
2. asked by Robyn
3. 684 views
How do I estimate 791 divided by 38 and use compatible numbers if necessary
1. 1 answer
2. asked by destiny
3. 683 views
An astronaut in outer space pushes himself away from his spaceship. About how far does the astronaut go before stopping? What
1. 0 answers
2. asked by Lala
3. 682 views
Write two examples of complex sentences, the first having the dependent clause appearring at the start, and the second with the
1. 3 answers
2. asked by Chris
3. 673 views

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