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Questions Asked on May 14, 2012

m<S=30, m(arc)RS=84,and RU is tangent to the circle at R find m<U.It's a circle with a triangle inscribed, only the s and r lie
1. 40 answers
2. asked by lilman
3. 14,108 views
kendra owns a restaurant. she charges $3.00 for 2 eggs and 1 toast, and $1.80 for one egg and one piece of toast. how much does
1. 6 answers
2. asked by loraine
3. 7,752 views
4 FeO(s) + O2(g) �¨ 2 Fe2O3(s)calculate value of delta H i have done this 4(-272.0)+0->2(-825.5) and the products minus
1. 3 answers
2. asked by maddy
3. 7,244 views
1. Find the pH of a solution whose [H3O+] is 9.5 X 10^ -8 M.2. What is the [H3O+] concentration of a solution with a pH of 5.45?
1. 3 answers
2. asked by kellin
3. 5,840 views
A color television has a power rating of 325 W. How much current does this set draw from a potential difference of 120 V?1 . A i
1. 1 answer
2. asked by Amelia
3. 4,638 views
for randomly selected adults, IQ scores are normally distributed with a standard deviation of 15. the scores of 14 randomly
1. 2 answers
2. asked by carl
3. 4,573 views
The heroes of the The Three Kingdoms can best be described asdisorganized. fearful. loyal to the emperor. traitorous Not sure
1. 12 answers
2. asked by lilman
3. 3,603 views
Contrast the effects of war in two of the following works: "Cranes,""Thoughts of Hanoi," and "Tokyo."Can someone please help me,
1. 4 answers
2. asked by lilman
3. 3,400 views
A hair dryer draws a current of 9.7 A.(a) How much charge passes through the hair dryer in 3.5 min? 1 C (b) How many electrons
1. 2 answers
2. asked by Amelia
3. 2,666 views
A steam iron draws 6.5 A when connected to a potential difference of 120 V.(a) What is the power rating of this iron? 1 W (b)
1. 4 answers
2. asked by Amelia
3. 2,235 views
at the local per store, zebra fish cost $2.10 each and neon tetras cost $1.80 each. if marsha bought 13 fish for a total of
1. 1 answer
2. asked by loraine
3. 2,182 views
Eliminate the parameter and write the corresponding rectangular equation whose graph represents the curve.x=4+2cos(theta)
1. 1 answer
2. asked by ct
3. 2,095 views
2. Baking soda is sodium bicarbonate (NaHCO3). When you heat baking soda, it breaks down into sodium carbonate powder (Na2CO3),
1. 1 answer
2. asked by dd
3. 2,005 views
The operating potential difference of a light bulb is 120 V. The power rating of the bulb is 105 W. Find the current in the bulb
1. 3 answers
2. asked by Amelia
3. 2,004 views
Julian's shadow is 6 feet long. At the same time a 31 foot tall building casts a shadow that is 28 feet long. What proportion
1. 6 answers
2. asked by Anonymous
3. 1,940 views
A weak acid solution, HX 0.37 M, has a pH of 3.70. Calculate the acidity constant for this acid.
1. 1 answer
2. asked by Andrea
3. 1,922 views
Calculate the volume of Ba(OH)2 0.20 M necessary to neutralize 300.0 mL of H3PO4 0.30 M. (4 marks)
1. 2 answers
2. asked by Andrea
3. 1,861 views
what is the maximum amount of KNO3 that can dissolve in 300 grams of water at 40 degree C. Solubility of KNO3 is 60g/100g at
1. 3 answers
2. asked by bkue
3. 1,691 views
Classify the following 3 acids in order of increasing acidity:Acid 1:Ka = 8 x 10-6 Acid 2:Ka = 6 x 10-4 Acid 3:Ka = 9 x 10-11
1. 1 answer
2. asked by Andrea
3. 1,676 views
the bubba corp. had net income before taxes of $200.000 and sales of $200.000. if it is in the 50% tax bracket ifs after tax
1. 2 answers
2. asked by mike
3. 1,607 views
A person is pushing on a refrigerator that sits on a level floor. Use Newton's third law along with his second law to find the
1. 1 answer
2. asked by Alex
3. 1,583 views
Definition and importance in Japanese history:• Ethnocentrism • Zaibatsu I have already looked in my textbook, without
1. 3 answers
2. asked by Angel
3. 1,546 views
Gravel is being dumped from a conveyor belt at a rate of 50 cubic feet per minute. It forms a pile in the shape of a right
1. 1 answer
2. asked by remy
3. 1,502 views
Finco must determine how much investment and debtto undertake during the next year. Each dollar invested reduces the NPV of the
1. 2 answers
2. asked by ama
3. 1,474 views
A park maiand mantenance person stands 16m from a circular monument. Assume that her lines of sight from tangents to the
1. 2 answers
2. asked by Anonymous
3. 1,430 views
A large 62.0 kg board is propped at a 44 angle against the edge of a barn door that is 3.1 wide.How great a horizontal force
1. 0 answers
2. asked by emmie
3. 1,430 views
Use Hess's law and the following equations to calculate ÄH for the reaction N2(g) + 2O2(g) N2O4(g).2NO2(g)->N2O4(g) ÄH =
1. 1 answer
2. asked by princess cunningham
3. 1,423 views
Prove Identity: (1-cos2x/ tan x) = sin2x
1. 1 answer
2. asked by Yadira
3. 1,377 views
a family travels to Bryce Canyon for three days. on the first day, they drive 150 miles. on the second day, they drive 190
1. 1 answer
2. asked by loraine
3. 1,365 views
For the following acids:i. CH3COOH ii. HNO2 iii. HCN a) What is the dissociation equation in an aqueous solution? b)Give the KA
1. 1 answer
2. asked by Andrea
3. 1,361 views
Find the surface area of pyramid that has a regular hexagonal base od edge 6 cm and a height of 8 cm.Thank you so much
1. 1 answer
2. asked by Lucas
3. 1,307 views
A map of the world has an area of 28 square feet. Its perimeter is 22 feet. What are the dimensions of the map?
1. 1 answer
2. asked by Anonymous
3. 1,302 views
the fun guys game was rental store charges an annual fee of $5 plus $5.50 per game rented. the game bank charges an annual gee
1. 2 answers
2. asked by loraine
3. 1,297 views
A spherical snowball is melting in such a way that its diameter is decreasing at rate of 0.2 cm/min. At what rate is the volume
1. 0 answers
2. asked by remy
3. 1,249 views
cos x (sec x +cos x csc2x)=csc2x
1. 1 answer
2. asked by trig identities
3. 1,247 views
The equilibrium constant for the following reaction is 7.2 x 10-10. What is the [H+] in a solution 1.0 M of this acid?HCN + H2O
1. 1 answer
2. asked by Andrea
3. 1,230 views
is 2/3 a fraction that can be renamed as a repeating decimal
1. 3 answers
2. asked by Anonymous
3. 1,205 views
how to convert 0.000037 to scientific notation
1. 1 answer
2. asked by rr
3. 1,198 views
How much charge passes through a cross-sectional area of a copper wire in 0.8 s if I = 3.5 A?1 C
1. 2 answers
2. asked by Amelia
3. 1,174 views
Compare the standard deviation for the heights of males and the standard deviation for the heights of females in the class.
1. 1 answer
2. asked by letty
3. 1,158 views
Name a business or health care organization that you believe is using a proactive, rather than reactive, approach to dealing
1. 1 answer
2. asked by lisa
3. 1,142 views
make a line plot or bar graph of a data distribution that fits each description.1. 24 names, with a range os 12 letters. 2. 7
1. 0 answers
2. asked by devy
3. 1,103 views
Price of corn was 4%/ on Jan 2009 and 7%/ on Jan 2010. By what percentage did the corn price change from Jan 2009 to Jan 2010?
1. 2 answers
2. asked by Anonymous
3. 1,101 views
A net charge of 47 mC passes through the cross-sectional area of a wire in 19.0 s.(a) What is the current in the wire? 1 A (b)
1. 2 answers
2. asked by Amelia
3. 1,100 views
a bus engine can operate at very high temperatures . if one of the cylinders has a volume of 1 litre and is initially at 25°C
1. 1 answer
2. asked by amanda
3. 1,083 views
I left out the following examples.Thank you, Writeacher. 1) He told us the match has been cancelled (correct should be: was/had
1. 1 answer
2. asked by Mike
3. 1,082 views
y= 4th root (x^2+1)/(x^2-1)
1. 3 answers
2. asked by ana
3. 1,074 views
Are the reactants or the products favoured in the following reactions?a. CH3COOH with NH3? b. HS- with HCO3-? c. HNO2 with NH3
1. 1 answer
2. asked by Andrea
3. 1,067 views
simplify plz(y^7/z^3)= use positive exponents only
1. 1 answer
2. asked by plz help
3. 1,043 views
Thank you, Writeacher. I left out the following sentences. Thank you very much.1) Who has called the wrong number? His team has
1. 1 answer
2. asked by John
3. 1,036 views
i need help with poem i not understand the last stanza and why it be so important. it also says by giving examples from poem,
1. 3 answers
2. asked by Mohammad
3. 1,030 views
perimeter of rectangular is 32 in .what are the length and width that will give the rectangle the largest possible area
1. 1 answer
2. asked by Anonymous
3. 1,009 views
If measures of two complementary angles are in the ratio 1 : 5. What are the degree measures of the two angles? Thanks :)
1. 1 answer
2. asked by Samuel
3. 1,008 views
5 cards are drawn at random from a standard deck of playing cards. What is the probability that all are the same suit?
1. 2 answers
2. asked by Derrick
3. 985 views
Commercial vinegar usually has a concentration of 5%, per volume.a) Calculate the [H3O+] , if the density of acetic acid is
1. 2 answers
2. asked by Andrea
3. 978 views
on my selected thermodynamic data i cant find delta H for SiCl4(L) (i can solve the reaction i just cant figure out what
1. 3 answers
2. asked by maddy
3. 938 views
The altitude of a triangle is increasing at a rate of 3.000 centimeters/minute while the area of the triangle is increasing at a
1. 0 answers
2. asked by remy
3. 937 views
Which of the following contains the highest H3O+ ion concentration? Explain your answer.HCl 0.1 M HCH3CO2 0.1 M
1. 1 answer
2. asked by Andrea
3. 924 views
Eight bricks 6 cm thick with mass 1.5kg lie flat on a table.how much work is required to top them one on another?
1. 1 answer
2. asked by Christopher
3. 920 views
What is a galaxy with no definite shape or size called?
1. 1 answer
2. asked by Ginny
3. 916 views
It is important to make sure that any person selling you a car has?A. physical possession of the vehicle. B. informed the motor
1. 1 answer
2. asked by Aisha
3. 899 views
Suppose that the certain lifetimes of a certain light bulb are normally distributed with μ=1500 hours and σ=200. Find the
1. 2 answers
2. asked by Yenny
3. 880 views
Calculate the cost of operating a 65 W light bulb continuously for a 30-day month when electrical energy costs $0.23/kW·h.$ 1
1. 1 answer
2. asked by Amelia
3. 868 views
garys cat weighs 11 lb.How many ounces is that?
1. 3 answers
2. asked by Gabe
3. 865 views
2sin(4t)[(cos(3/2)x)(cos(5x/2)-sin((15/4)x)]+x
1. 2 answers
2. asked by Brianna
3. 862 views
length and width of a 3in x 5 in photo are tripled what scale factor is used i put 9 id that right
1. 1 answer
2. asked by Anonymous
3. 852 views
A person exerts a horizontal force of 36 N on the end of a door 97cm wide. What is the magnitude of the torque if the force is
1. 1 answer
2. asked by emmie
3. 828 views
how do i close a partial worksheet for Walter Searing, for month-end and post closing trial balnce.
1. 0 answers
2. asked by Renee Davis
3. 824 views
3in.x 5in. photo are triped what scale factor is used
1. 5 answers
2. asked by Anonymous
3. 805 views
The volume of a sphere is V = 14,130 ft3. What is its surface area?What is it's radius? The volume of a sphere is V = 4443 m3.
1. 3 answers
2. asked by Mike
3. 787 views
What is the pH of a solution prepared by dissolving 12.2 g of benzoic acid in enough water to produce a 500 mL solution?
1. 1 answer
2. asked by Andrea
3. 785 views
You have a 46.0 G sample of H20 at a temperature of -58.0*C. How many joules of energy are needed to heat the ice to 95.3*C?
1. 1 answer
2. asked by Joel
3. 773 views
Hi Dr.Bob,Which is the correct formula for dinitrobis(ethylenediamine)cobalt(III) nitrate? I'm not sure which is the correct one
1. 1 answer
2. asked by Meenaakshi
3. 770 views
200 g of CH3COOH are dissolved in enough water to make 1.5 L. What is the molarity of the acetic acid solution?
1. 1 answer
2. asked by Andrea
3. 762 views
A magnetic field is perpendicular to the plane of a single-turn circular coil. The magnitude of the field is changing, so that
1. 1 answer
2. asked by M
3. 756 views
what is the boiling point elevation when 31.5 g of menthol (C10H20 O ) is dissolved in 258g of acetic acid? Kb for acetic acid
1. 1 answer
2. asked by bkue
3. 741 views
An auditorium has a curved back wall. A horizontal cross section of the wall is in the shape of a parabola. The wall is 80 feet
1. 1 answer
2. asked by jenny
3. 740 views
my sister need help with biology homework she need to describe ecology of amoeba, paramecium, and diatom. telling where it be
1. 2 answers
2. asked by Mohammad
3. 728 views
an ant walks 4 cm East, gets some rest, and continues for another 3 cm in the same direction.What is the total displacement
1. 1 answer
2. asked by king
3. 721 views
person 6 ft.tall casts a shadow of 8 ft. long what is height of nearby building that casts a 72 ft shadow at same time
1. 7 answers
2. asked by Anonymous
3. 710 views
How to make a sonnet poem with 10 syllables
1. 1 answer
2. asked by joshua
3. 704 views
Calculate the KA of formic acid if 2.3 g of it is dissolved in 1 litre of water to give [H+] of 0.003 M.
1. 1 answer
2. asked by Andrea
3. 696 views
A square piece of foil with area A = 5.0 × 10^-4 m^2 and mass m = 5.0 × 10^-5 kg is suspended along one edge and hangs under
1. 2 answers
2. asked by Rams
3. 679 views
Could you please check these few examples? Thank you very much, Writeacher.1) It is likely that he will pass his driving test.
1. 1 answer
2. asked by John
3. 676 views
Dal and kim can assemble a swing set in 1.5 hours. working alone it takes kim 4 hour longer than dal how long will it take dal
1. 1 answer
2. asked by Jenn
3. 667 views
Directions - Match each phrase with the correct term from the list of Key Science Words.1. filters microorganisms Answer -
1. 1 answer
2. asked by Laruen
3. 663 views
I don't get it.I need to find out these conversions. 15,000 g= ____ kg 5,000 mL= ____ L 75 mL= ____ L 390 mL= ____ L 0.03 m=
1. 1 answer
2. asked by Sami
3. 650 views
I need a attention grabber for, a newspaper article. It is based on the giver, it is about a ceremony that is about to begin i
1. 3 answers
2. asked by Aisha
3. 648 views
A block of mass m is projected at speed Vo up a rough plane inclined at an angle theta to the horizontal. Model the block as a
1. 0 answers
2. asked by Anonymous
3. 647 views
A 1.07 kg block slides across a horizontal surface directly toward a massless spring with spring constant 4,794 N/m. The surface
1. 1 answer
2. asked by Jennifer
3. 632 views
At noon, ship A is 30 nautical miles due west of ship B. Ship A is sailing west at 25 knots and ship B is sailing north at 25
1. 0 answers
2. asked by remy
3. 629 views
A marine biologist tags 100 whales. Later, a sample of 115 whales was gathered and 5 were tagged. Estimate the total whale
1. 1 answer
2. asked by Anonymous
3. 620 views
what mass of KCl can be dissolved in 200.0g of water at 15.0C?
1. 1 answer
2. asked by valerier
3. 619 views
A long hollow non-conducting cylinder of radius 0.060 m and length 0.70 m carries a uniform charge per unit area of 4.0 C/m^2 on
1. 1 answer
2. asked by Rams
3. 609 views
A boy exerts a force of 15N to push a motor bike which has flat tyre for a distance at 30m.calculate the mass of the motor bike.
1. 1 answer
2. asked by Nicholas
3. 601 views
What was the effect of Japanese imperialism in the early 1900s?
1. 1 answer
2. asked by Angel
3. 600 views
The question is compare and contrast the architectural details of the Early Christian basilica with those of the Gothic
1. 1 answer
2. asked by Bella
3. 596 views
Writeacher, could you please check these sentences? Thanks.3) It takes him half an hour to drive to school. 4)He has called the
1. 1 answer
2. asked by John
3. 589 views
Find the slant height of a cone with surface area of 178.6 in2 and a radius of the base of 4.9 in
1. 1 answer
2. asked by Anonymous
3. 585 views
if an office has an area of 120 sqare feet and a perimeter of 44 feet. what are the dimensions of this office.
1. 2 answers
2. asked by chris
3. 581 views

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