Friday
April 18, 2014

Posts by Angel


Total # Posts: 846

Math
414/7 = x/16 7x = 414(16) 7x = 6624 x = 6624/7 x = 926.29 but I wonder did you mean 4.14 in which case the answer would be 9.29

Alegbra
I need help, my teacher says that I'm half way right with this but not fully what am I missing I'm confused. The criteria for the quadratic equation as i written is: y>0 is real roots y=0 is real and equal roots y<0 is imaginary or complex roots My teacher said I...

math
an angle is 62.3 degree. find its supplement?

math
Lily, Jane & Betty gave away 224 balloons at a carnival. Lily gave away 4 times as many balloons a Betty while Jane gave away half as many balloons as Lily. How many balloons did Jane give away?

college math please help
What do these mean? They are supposed to represent things but I don't understand them. C=2╥r for r, S=P+Prt for t, and A=2lw+2lh+2wh for h

college math word problem
A new car worth 45K is depreciating in value by 5K per year. How can I write a formula that models the cars' value,y, in dollars, after x years?Then using the formula determine after how many years the cars' value will be 9K.

collegemathwordproblem
One number exceeds another by 24. The sum of the numbers are 58. What are the numbers?

collegemathwordproblem
When 80% of a number is added to the number, the result is 252. How do I find the number?

collegemathwordproblem
When a number is decreased by 30%of itself, the result is 28. What is the number?

social studies
A prime minister is the leader of what type of region? A) climate B) cultural C) economic D) political

Physics
yo = 10 m vo= 10 m/s angle = 45 degrees has to be changed to radians, x = 16.4 m Theres wasn't a lot of information given. Solve for t and y.

Physics
I'm having problems setting up an equation to solve for time t in a projectile motion problem. What is given is horizontal position, accerlation due to gravity, the initial speed with, the angle, and the vertical position related to speed. I'm suppose to find y veritca...

Science
My professor tells me I'm not using the right formula for this problem. can someone please help me. The formula is not delt p = density x gravity x height The mercury manometer on the right and the pressure transducer on the left are both connected to a piston-driven press...

Physics
My professor tells me I'm not using the right formula for this problem. can someone please help me. The formula is not delt p = density x gravity x height The mercury manometer on the right and the pressure transducer on the left are both connected to a piston-driven press...

ap us history
how can i put all these events and make it to a essay -engishman rights -taxes -independence -boston tea party -tea act -whiterights

Math & Chemistry
I having problems converting my answer to just cm. Given: Average Velocity = 1 m/s Water per day = 6,000 m^3/day Want to find the diameter of fluid flow. I am using the eqation: D = sqrt(4*q)/(pi*v) q= volumetric flow rate (6,000 m^3/day) v= velocity (1 m/s) when I solve I get...

Math
2.48> 2.4 1> 2.463

Math
2.48> 2.4 1> 2.463

Math
Odd number between 411 and 423 with sum of 12

math, medical
A medication is available in 30mg. tablets. A patient is given a prescription for gr. ii. How many tablets should the patient take? I am not sure how to work this problem out, and i am confused on the gr. ii. part, i do not know what it means, please help. thank you

math
A medication is available in 30mg. tablets. A patient is given a prescription for gr. ii. How many tablets should the patient take? I am not sure how to work this problem out, and i am confused on the gr. ii. part, i do not know what it means, please help. thank you

Chemistry/Math
I'm not sure how to approach this problem. The teacher wants volumetric flow rate (in cm). A commonly used rule of thumb is that average velocity in a pipe should be about 1 m/s or less for "thin"(viscosity about water). If a pipe needs to deliver 6,000 m^3 of wa...

Science
I not sure what formula to use for KE or how to find the mass for the equation. Water is flowing through a 2-inch diameter pipe with a velocity of 3 ft/s. Part A What is the kinetic energy of the water in (ft)(lbf)/(lbm)? (lbf) pound force (lbm) pound mass Part B What is the f...

math
if the speed of a comet at perihelion (the closest orbital point to the sun) is 98000 mi/h. How far will the comet travel in 30 sec?

maths
a ladder 15 meters long just reaches the top of a vertical wall. if the ladder makes an angle of 60 degrees with the wall. find the height of wall.....

math ( pre algebra )
It makes a capital h

pre cal
Verify each identity sin^x+siny/sinx-siny=tan(x+y/2) (times) cot(x-y/2)

Finance
a client comes to you for an investment advice on his 500,000 winnings from the lottery. he has been offered the following options. what would be the best option 6% compounded interest quarterly for 5 years or 8% compounded annually for 5 years or 14.5% simple interest for 10 ...

Math
Tom needs a pipe that is 21/24 of an inch in diameter. The store has 7/8 inch pipe. Should he buy it?

Math
Mr. Munoz has a 1/16 inch drill bit and a 3/32 inch drill bit. Which will make a bigger hole?

english
Choose the sentence in which the verb has a direct object. A. George was furious. B. I walked away. C. They won the game. D. She is insecure.

english
Which sentence below contains a correctly used modifier in italics? A. Joe looked sad at his broken bike. B. The sauce tasted bitterly, and I couldn't swallow it. C. He spoke sharply to his sister. D. I feel badly because I lost the race.

English
Which of the following sentences uses a preposition properly? A. Connor waited in line while Ava parked the car. B. Where is David at? C. There was a big argument between Megan, Abira, and Lena. D. I might of lent him the book, if he had asked

help please :)
those are the only choices

help please :)
The U.S. Congress added disability insurance to the Social Security Act in 19____. A. 35 B. 54 C. 65 D. 72 i got A.

algebra
go to hell

math
Which one of the following statements best describes what a budget is? A. A method of figuring out the inflation rate. B. An organized plan for spending money. C. A way to keep people from really enjoying life. D. A plan for saving money.

budgeting
thanks

budgeting
A. net B. disposable C. budgeted D. taxable

budgeting
Emilio is employed as full-time mechanic in the service department of an auto dealer. In his spare time, he draws political cartoons and sells them to the weekly newspaper in his home town. He is paid $35 for each cartoon, which amounts to an additional $1,820. The newspaper d...

physics
A girl throws a water-filled balloon at an angle of 50.0 degree(s) above the horizontal with a speed of 12.0 m/s. The horizontal component of the balloon's velocity is directed toward a car that is approaching the girl at a constant speed of 8.00 m/s. (See figure) (a) If t...

Algebra- MAT 116
I need Help with this question: Find the value 0.2y(y to the second power)+ o.3y (y to the second power)-0.1y (y to the second power)

MAT 116
thank you!

MAT 116
Please HELP!! traslate six times a number subtract three the number then simplified the expression

MAT 116
Use the distributive property to rewrite the expression (a+8)4= (simplify answer)

Global History
Thanks for trying to help, however a five year old could write a wikipedia article and therefore it is not realiable and banned at my school. It's fine, though, because a friend pointed me elsewhere (an edu) so thanks again.

Global History
Definition and importance in Japanese history: • Ethnocentrism • Zaibatsu I have already looked in my textbook, without success. Please no links. My computer is extremely slow and links screw it up. Thanks!

Global History
What was the effect of Japanese imperialism in the early 1900s?

Phizzics....
A ball is thrown straight up from ground level. After a time 4.1 s, it passes a height of 157.1 m. What was its initial speed? The accelera- tion due to gravity is 9.8 m/s2 . what is its initial speed

Parts of speech
People express thoughts mainly by using

Chemistry
how many grams of solute is in 64.3 mL of 0.0238 molarity KOH?

Physics
A small cork with an excess charge of +6.0 µC is placed 0.25 m from another cork, which carries a charge of −3.2 µC. What is the magnitude of the electric force between the corks? The Coulomb constant is 8.98755 × 10 9 N · m2 /C 2 . Answer in uni...

Physics
Where did you get 210?

Physics
It says its wrong.

Physics
A balloon rubbed against denim gains a charge of −2.0 µC. What is the electric force between the balloon and the denim when the two are separated by a distance of 5.0 cm? (Assume that the charges are located at a point.) The value of the Coulomb constant is 8.98755...

MATH
The cumulative number of car accidents from 2000 to 2010 can be modeled by the quadratic expression, C=-42x^2+924x+14,112, where x=1 corresponds to 2001, and so on until x=11 corresponds to 2010. Find the number of cumulative car accidents in 2003. Use the table of values to e...

MATH
If C dollars are deposited in an account paying r percent annual interest, the amount after x years is A+C(1+r)*. Approximate the amount in the account after x years, when C=$100.00, r=19%, and x-15 years.

MATH
The cumulative number of car accidents from 2000 to 2010 can be modeled by the quadratic expression, C=-42x^2+924x+14,112, where x=1 corresponds to 2001, and so on until x=11 corresponds to 2010. Find the number of cumulative car accidents in 2003. Use the table of values to e...

MATH
A rectangle pen for a pet is 5 feet longer than it is wide. Give possible values for the width W of the pen if its area must be between 266 and 750 square feet, inclusively. The width of the pen from the smaller value of the width is how many feet to the larger value of the wi...

math
If C dollars are deposited in an account paying r percent annual interest, approximate the amount in the account after X years if c=$250, r=2.4% and x=23 years?

math
The population P in 1995 for a state is given along with r, its annual percentage3 rate of a continuous growth. P=16 millions, r=1.2% Write the formula f(x) =Pe^yx, where r is in a decimal notation, that models the population in millions x years in 1995.

math
In 2000 the population of a state was 5 million and growing continuously at a rate of 3.4% per year. a) Write a function that models the state’s population in millions x years after 200. b) Graph f in 0,10,1 by 4,7,1 c) Estimate the state’s population in 2007.

math
Biologist have have found that the weight W of a bird and the length L of it’s wing span are related by L=kW1/3, where k is a constant. The following list L and W for one species of bird. What is the value of k? W kilograms0.1 0.4 0.8 1.1 L meters 0.399 0.634 0.798 0.888

math
The total hang time T in seconds, is given by T(h)=^h/2. Where h is the maximum height. If a person jumps 6 ft off the ground, determine for how many seconds the person is in the air.

math
find function values f(x)=9x^2+10x-8

word problem
A farmer decides to enclose a rectangular garden, using the side of a barn as one side of the rectangle. What is the maximum area that the farmer can enclose with 80 feet of fence? What should the dimensions of the garden be to give the area?

Algebra
For what values of x is x/[x(3x-4)] undefined?

Physics
Light falls on a double slit with slit separation of 2.19 × 10 −6 m, and the first bright fringe is seen at an angle of 12.7 ◦ relative to the central maximum. What is the wavelength of the light? Answer in units of nm Can the person post the steps and ...

Physics
It says incorrect. Can you explain the process?

Physics
Light falls on a double slit with slit separation of 2.19 × 10 −6 m, and the first bright fringe is seen at an angle of 12.7 ◦ relative to the central maximum. What is the wavelength of the light? Answer in units of nm

Physics
Im sorry to ask again but what equation did you use? Can you list the steps you did please? So I can answer the next few questions by myself.

Physics
A pair of narrow parallel slits separated by a distance of 0.253 mm are illuminated by the green component from a mercury vapor lamp (λ = 545.1 nm). What is the angle from the central maximum to the first bright fringe on either side of the central maximum? Answer i...

Physics
And where did you get those numbers?

Physics
Excuse me what was the equation you used? Because the answer is wrong.

Physics
A double-slit interference experiment is performed with light from a laser. The separation between the slits is 0.58 mm, and the first-order maximum of the interference pattern is at an angle of 0.060 ◦ from the center of the pattern. What is the wavelength of the ...

calc
Let f(x)=x^3-3x^2 find the absolute maximum value of f(x) on the interval [1,4]? 22 hours ago - 3 days left to answer

calc
A____________B 9 miles is between A and B? at 3pm Andy began travelling South at a rate of 4mi/hr from point A at the same time Bill began travelling West at a rate of 5mi/hr from point B to A both stop wlking when Bill reaches point A What time will the distance between Bill ...

11th grade algebra 2
(1-7) write each function in vertex form (8-10) write each funtion in standard form? 1) Y=x^2+3x-10 2) Y=x^2-9x 3) Y=X^2+x 4) Y=x^2+5x+4 5) Y=4x^2+8x-3 6) Y=(3/4)x^2+9x 7) Y=-2x^2+2x+1 8) Y=(x-3)^2+1 9) Y=2(x-1)^2-3 10)Y=-3(x+4)^2+1

Algebra 2
(1-7) write each function in vertex form (8-10) write each funtion in standard form? 1) Y=x^2+3x-10 2) Y=x^2-9x 3) Y=X^2+x 4) Y=x^2+5x+4 5) Y=4x^2+8x-3 6) Y=(3/4)x^2+9x 7) Y=-2x^2+2x+1 8) Y=(x-3)^2+1 9) Y=2(x-1)^2-3 10)Y=-3(x+4)^2+1

Physics
Sherlock Holmes examines a clue by holding his magnifying glass (with a focal length of 29.8 cm) 10.4 cm away from an object. Find the image distance. Answer in units of cm Find the magnification.

physics
disregard

physics
A ray of light of vacuum wavelength 550 nm traveling in air enters a slab of transparent material. The incoming ray makes an angle of 37.4◦ with the normal, and the refracted ray makes an angle of 22.0◦ with the normal. Find the index of refraction of the transpare...

Physics
An object 3.35 cm tall is placed 10.8 cm in front of a mirror, which creates an upright image that is 5.61 cm in height. a) What is the magnification of the image?

Physics
disregard

Physics
The image of a crayon appears to be 20.6 cm behind the surface of a convex mirror and is 1.64 cm tall. The mirror’s focal length is 54.3 cm. a) How far in front of the mirror is the crayon positioned? Answer in units of cm I keep on getting it wrong so the answer & explan...

physics
I keep getting error

physics
do I put my calculator in degrees?

physics
A ray of light traveling in air strikes the surface of a liquid. If the angle of incidence is 33.5◦ and the angle of refraction is 19.8◦, find the critical angle for light traveling from the liquid back into the air. Answer in units of◦

Physics
do I have to convert GHz?

Physics
What is the wavelength of a radar signal that has a frequency of 30 GHz? The speed of light is 3 × 10^8 m/s. Answer in units of m Giving me the formula is just fine

Physics
Consider a concave mirror with a focal length of 14.04 cm. b) Find the image distance when the object distance is 7.02 cm c) Find the magnification of the image for part b Giving me the formulas is just fine

Global History
Sorry this is not very detailed...I checked my textbook but couldn't find any information. How did the Islamic Conquest impact India? Thanks so much in advance :)

Physics
A spherical glass ornament is 7.00 cm in diameter. An object is placed 11.8 cm away from the ornament. a) Where will its image form? b) What is the magnification of the image

Physics
A concave makeup mirror is designed so that a person 25.3 cm in front of it sees an upright image at a distance of 54.0 cm behind the mirror. a) What is the radius of curvature of the mirror? Answer in units of cm

physics
How did you get 20.6?

Physics
The image of a crayon appears to be 20.6 cm behind the surface of a convex mirror and is 3.32 cm tall. The mirror’s focal length is 52.6 cm. a) How far in front of the mirror is the crayon positioned? b) Calculate the magnification of the image

Physics
Consider a concave mirror with a focal length of 14.98 cm. a) Find the image distance when the object distance is 14.98 cm. (Answer with −1000 if the image does not exist.) That's the whole question..

Physics
Why is it infinity?

Physics
Consider a concave mirror with a focal length of 14.98 cm. a) Find the image distance when the object distance is 14.98 cm

Physics
Gamma-ray bursters are objects in the universe that emit pulses of gamma rays with high energies. The frequency of the most energetic bursts has been measured at around 3.0 × 10 21 Hz. The speed of light is 3 × 10 8 m/s. What is the wavelength of these gamma rays?

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