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Posts by jo

Total # Posts: 490

physics
a television antenna is on the roof of the building. from a pt. on the ground 36.0 feet from the building , the angle of elevation of the top and the bottom of the antenna are 51 degree celsiusand 42 degree celsuis respectively. how tall is antenna?

physics
m1/m2

Calculus help~!
Which is the standard form of the equation with p = 26, O= 3pi/4 ? SQRT2x – SQRT2y = 0 SQRT2x – SQRT2y + 52 = 0 SQRT2x + 52 = 0 SQRT2x + 52y = 0

algebra
the product of two consecutive even integersis 34 less than 7 times their sum.find the two integers.

algebra
One number is 10 more than twice another.Their product is 10 more than twice their sum.Find the numbers.

HISTORY
thank you bobpursley!

HISTORY
In 2001, President George W. Bush signed the Economic Growth and Tax Relief Reconciliation Act of 2001 (EGTRRA). This bill called for large tax cuts just as the Economic Recovery Act of 1981 had and largely benefited the wealthiest Americans. President Bush’s approach to...

english
this summer I will be going to a theme park with my best friend will go too. It will be fun. Because I like when I get to go with friends. I've never been to this theme park before I heard it is very fun. Someone in my class. ITold me that there is a rollercoaster that is ...

Chemistry
Find the molecular formula of a compound that is 48.38% carbon, 8.12% hydrogen, and 53.5% oxygen by mass and has a molecular weight of 328 g/mol.

Chemistry
A 15mL sodium hydroxide solution of unknown concentration is titrated with 34.5 mL of 1.2M HCl solution. What was the concentration of the sodium hydroxide solution?

Chemistry
A 12 mL sample of 0.4 M silver nitrate solution is mixed with 8 mL of 0.8 M sodium chloride solution. Determine the identity of precipitate and the number of grams produced.

Math
Math huron scored 84% on her last history test. Of she got 21 answers correct , how many question did the test have?

Math
Math huron scored 84% on her last history test. Of she got 21 answers correct , how many question did the test have?

accounting
which one of the following contingencies must be accrued on the balance sheet

physics
faaaanx -xoxoa jo h.

chemistry
hello i'm doing a redox stoichiometry lab having to do with titration 6H +5H2O2 + 2MnO4 -- 5O2 + 2Mn2+ + 8H2O Why is H2O2 the source of O2 product in this titration?

englsih
in the poem the sloth by theodore roethke is there any personification, alliteration, imagery or onomatopoeia

Math
How many lines of symmetry does a regular decagon have? 0 5 10 20 I believe the answer is 10. Thanks for the help :)

Physics
The pulley system shown in the figure is used to lift a 52-{\rm kg} crate. Note that one chain connects the upper pulley to the ceiling and a second chain connects the lower pulley to the crate. The crate is rising with an acceleration of 2.5 m/s^2. Determine the tension in ...

chem
how do you tell which reactant is limiting reactant with the following information: mass of cup 55.78g mass o/sodium bicarbonate 1.01g mass o/citric acid 1.52g toal mass 58.31g mass of cup,solute after reaction 59.95g mass o/carbon dioxide .42g H3C6H5O7(aq) + 3 NaHCO3(aq) &#...

math 2nd grade
The word 'of' means to multiply. 3/5 of 10 3/5 X 10 = 30/5 = 6 1/3 of 12 1/3 X 12 = 12/3 = 4 hope this helps.

Math
3:18 9:54 and 6:36 Notice how you have to multiply the first number by 6 to get the second number. Hope this helps!

math
360/18 = x/1 One is the unit rate. Find X. 18 divide by 18 equals one. So take the 360 and divide by 18 which equals 20. Therefore x = 20. Hope this helps.

7th grade math
1.772453851(and then some more)

math
(1)Look at a ruler on the inches side. Notice between the zero and one there are little dashes. There should be 16 betweeen zero and one. 16 between one and two... Each dash is a sixteenth. So every other one is an eighth. (2) You want 10 inches out of 12 inches. Therefore 10/...

8th grade math
Parallel equations have the same slope. y = mx + b Perpendicular equations have a reciprocal and opposite slope. There is more to these questions than space allows here. Go to Khan Academy to view video's on how to do these equations.

8th grade math
2x = y + 1/2 Subtract y from both sides. 2x - y = 1/2 Done! Check out "khanacademy" for video's on how to solve Alebra problems.

5th Grade Math
Fluis ounces.

Maths 10th grade
x2 - 6x + m -3 = 0 x2 - 6x - 3 = -m Is a start. Then use the Quadradic Formula to find the factors.

biochemistry
explain the role of protein misfolding and aggregation in bovine spongeform encephalopathy

Math
3 x 2 = 6 square miles divided in half equated 3 square miles

Math
3 miles

math 2nd grade
otis

math 2nd grade
francisco

English
Punctuate the sentence. misty could you walk ms millers dog on Tuesday mom asked

Chemistry
H3C6H5O7(aq) + 3 NaHCO3(aq) ¨ Na3C6H5O7(aq) + 3 H2O(l) + 3 CO2(g) How do you go about calculating theoretical yield of carbon dioxide from 1.00g of sodium bicarbonate andthe percentage yield

college algebra
do you have a graphic calculator

math
90

Physics
A sled which has a mass of 45kg is sitting on a horizontal surface. A force of 120 N is applied to a rope attached to the front of the sled such that the angle between the front of the sled and the horizontal is 35 degrees. As a result of the application of this force the sled...

math
The sum of the digits of a two-digit number greater than 50 is 12. The difference between the digits is 4. Find the two-digit number

chemistry
ko

Maths
4x-2=14x-92

chemistry
.45

college algebra
Solve the following equation in the complex number system. Please show all of your work. 2x^5-3x^4-32x+48=0

precal
For the given functions f, g, and h, find fogoh and state the exact domain of fogoh. Please show all of your work. f(x)=lnx g(x)=|x|-2 h(x)=4x-7

College Algebra
Verify that the function f and g, are inverses of each other by showing that f(g(x))=x and g(f(x))=x. Graph both the functions on the same graph. Please show all of your work. f(x)=-7/x-4 g(x)=4x-7/x

College Algebra
Solve the logarithmic equation. Express your solutions in exact form only. Please show all of your work. log base 6 (64x^3+1)-log base 6 (4x+1)=1

College Algebra
Find the inverse of the function below. Graph the function below and the inverse function. Determine the domain, range, and asymptotes of the function below and the inverse function. Please show all of your work. Show both graphs. f(x)=2ln(3-x)+6

chemistry
When a sample of carbon dioxide gas is at 36 degrees and 105 kpa is heated the new pressure of the gas becomes 165kpa. Determine the new temperature. Assume volume and amount of gas remain constant.

history
In the movie Lakota Woman- Siege at Wounded Knee; I need to understand what the alienation isues that Mary Crow Dog regarding her family. Do you have any ideas on where I can find this informaton?

human services
In the movie Lakota Woman- Siege at Wounded Knee; I need to understand what the alienation isues that Mary Crow Dog regarding her family. Do you have any ideas on where I can find this informaton?

Calculus
A balloon is rising vertically above a level, straight road at a constant rate of 1 foot/second. Just when the balloon is 65 feet above the ground, a bicycle passes under it going 17 feet/sec. How fast is the distance between the bicycle and balloon increasing 3 seconds later?

Calculus
A particle is moving along the curve whose equation is (xy^3)/(1+y^2)= 8/5. Assume the x-coordinate is increasing at the rate of 6 units/second when the particle is at the point (1,2). At what rate is the y-coordinate of the point changing at that instant? Is it rising or ...

Physics
An autographed baseball rolls off of a 0.85 m high desk and strikes the floor 0.68 m away from the desk. How fast was it rolling on the desk before it fell off? The acceleration of gravity is 9.81 m/s2 . Answer in units of m/s

Physics
In a portable defibrillator, energy is stored in a capacitor charged to a high potential difference. The capacitor is discharged through the patient’s body in a short, high-powered pulse. a) The capacitor in a portable defibrillator is charged to 5000 V ...

statistics
given the following population data, x=17,13,23,15,19,19,21,28 calculate the z score value for a score of 18.

math
what is the rule for input 36 output 9 input 17 output 9 input 24 output1 input 18 output 0

maths
When Sandy decreased her savings by 75% and Gene increased hers by 40%, they would save $280 each. What were their total savings at first?

maths
Amy had 20% more money than John. After she spent 50% of her money, she had $72 less than John. How much money had she left?

Maths
At present, the ratio of Ann's age to Pamela's age is 4:3. Six yrs ago, their total age was 72yrs. what is Pamela's presnt age?

Maths P5
Mr Neo has fewer than 200 sweets. He wants to give his class an equal number of sweets. If he gives each pupil 3 sweets, he will have 70 left over. If he gives 5 sweets, he will need 10 more sweets. How many pupils are there in the class? How many sweets does Mr Neo have?

Maths P5
Cindy went to the store with just enough money to buy 11 files.However, she bought only 8 files and spent the rest of her money on 24 pens and rulers. The ratio of the number of pens to rulers was 3:5. Each ruler costs $0.80. Each pen costs $0.40 more than a ruler.How much did...

Maths P5
Daniel, Susan and Rick bought some cookies to sell. The cookies were sold at 6 for $2. Daniel sold 1/4 of the cookies. Susan sold 2/7 as many cookies as Rick. Daniel and Susan sold a total of 120 cookies. a)How many cookies did they sell altogether? b)How much did they collect...

maths
there are 15 guppies, 14 angelfish and 5 goldfish in a tank. how many guppies and goldfish must be added so that the ratio of guppies to angelfish to goldfish is 9:7:5

Maths
60% of the people on a bus are male. After 1/3 of the males alighted from the bus, what percentage of the people left on the bus are females?

statics
test 55%answer correct 44 correct answers how many questions on test

chem
why is hexane known as hydrocarbon?

algebra
what is 6y square -5y -2??

spanish
I need someone to edit a spanish article for me. I can just email it to you if you leave your email here. Thanks!

chemestry
A gas is contained in a metal cylinder with a piston, so that the volume of the cylinder can change. If the gas initially occupies volume of 664 ml at 471 mmHg, what will be the volume if the temperature is kept constant and the pressure is changed to 408 mmHg?

math
Please help! :) Garden measures 30x20 Border has a width of x (I've already solved the first part of my problem, in that the width is 3) Border needs to be covered to a depth of 3 inches. Pine bark costs $29 per cubic yard. What will the material cost to lay the pine bark ...

math
Please help! :) Garden measures 30x20 Border has a width of x (I've already solved the first part of my problem, in that the width is 3) Border needs to be covered to a depth of 3 inches. Pine bark costs $29 per cubic yard. What will the material cost to lay the pine bark ...

Algebra
How do you graph 2 equations and then find the common area on the graph?

computer science
in mobile phone network how many times as strong would a signal be expected to be at 200 m from a base station, compare with at 600 m? is it 81 or 9 or 3 or 0.3 or 0.1 or 0.01

chemistry
This is almost correct, except it should be (s)(2s+.15)^2=Ksp

Chemistry
Balance this equation: Cu + H+(aq) + NO3-(aq) -- Cu2+(aq) + NO2 + H2O

Math
determine if the given function is one-to-one. if it is, find the inverse. f(x) = 8x - 4 A) f-1(x) = x+4 / 8 B) f-1(x) = x-4 / 8 C) Not one-to-one D) f-1(x) = x/8 + 4

maths
a pyramid has a spuare base with side length 20.a right circular cylinder has a diameter of 10 and a length of 10.the cylinder is lying on its side,completely inside the pyramid.the central axis of the cylinder lies parallel to and directly above a diagonal of the pyramids ...

math
how do I solve (.5x?)-1.4=.85

psych
Language Paper (12 points): This paper should be posted as a Word attachment in the Assignment Section and should be consistent with APA guidelines. Prepare a 1050 to 1400-word paper in which you examine language as it relates to cognition. Address the following: o Define ...

math
106.76 square meters

Science
a truck that weighs 19500 kg is moving at a velocity of 17 m/s west what is the trucks momentum? My answer: 1147.05...

health
List 3 word elements and examples in health field?

Math
243

the facility
the director of a child care program may allow a care give to take a day or two rer year

accounting
how can I solve this problem stockholders invest $25,000 cash in the corporation

Physics
im not asking for help graphing. im asking which would go on x axis and which would go on y axis

Physics
create a graph with your data of rotational speed vs radius. independent variable goes on x axis. which is x axis and which is y axis out of radius and rotational speed

Math
nevermind i figured out y= -1 but how would you graph x+3=0

Math
x+3=0 how do you graph that? y= -1 how would you graph that?

marketing
what special advantages and potential problems did 3m have in introducing a new highlighter with flags product for college students in 2004

math
Explain how you could show five less than a number using an expression?

Literature
How do you think a Puritan writer such as Anne bradstreet might have responded to the ideas presented in a psalm of life

history
president hoover's overall plan to deal with the great depression was to?

Physics
forces of 185N and 245N act east and south respectively on an 80 kg mass.If the force of friction is ZERO , find the accleration of the mass.

chemistry
what is the molarity of an unknown HCI concentration if it requires 75ml of a 0.2 M NaOH solution?

chemistry
The environmental protection agency (EPA) wanted to study the particular materials in the atmosphere in Bogus Basin at 7200 ft elevation. The sampled air rate was at 1.00 liter per minute and was allowed to run 24 hours per day for 30 days. At the end of the month the filter ...

Statistics
0.999

Baking
I have a recipe for a Tunnel of SugarPlum cake. It calls for a small pky of frosting mix (Jiffy). This is no longer available here. I have researched other Tunnel recipes on the web. They also call for the frosting mix. HELP PLEASE. How and what can I substitute for this item?

math
If a single fair die is rolled, find the probability of a 4 given that the number rolled is odd.

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