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March 26, 2017

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Posts by lucy

Total # Posts: 947

Calculus Question! ASAP!
Hello! I have this problem: x(dx)/sqrt(9-x^2) I was wondering why I can't use trig substitution and substitute sqrt(9-x^2) for sqrt(1-sec^2) and having: integral x = 3sin(theta) dx = 3cos(theta)d(theata) integral 3sin(theta)(3cos(theta))/3cos(theta) having the 3cos(theta) ...
February 15, 2017

Help! Calculus
I am so confused on how to solve this problem. I have it set up with y's on one side and x's on the other but I don't know what to do from there. Question: Solve the differential equation. The initial condition is y(0) = 1. ((x^2+1)^(1/2))(dy/dx) - (x/(2y)) = 0 y &...
February 1, 2017

Ap algebra
2+3X^2-X^3=0 by use quadratic formula. The answer of textbook is 3.19 So I solved and came out a wrong answer What I did factor out (-X+3)X^2+2=0 Then By quadratic formula, a=1,b=0,c=2. Thus I got sqrt(8)/2
January 25, 2017

Time Value of Money
Please help me with guidelines on what really is the first thing to do when answering this type of questions on this topic,what is the catch on these topics?
January 20, 2017

Managerial finance 4A
Mr Paul is identified three investment opportunities that he is considering.one is investment A that is expected to pay N$800.00 ayear for three years,followed by N$1000.00 per year for four years. it will pay N$2000.00 at the end of the eighth year. Investment B is expected ...
January 20, 2017

math
there are 32 students 12% got an A.How many of them got A's.i need help converting this percentage to a whole number please help
January 17, 2017

English
The movie called Curcible reveals the church and court both state that all liars will be damned, but only can tell who the real sinners are. What does that mean ? What are they trying to say ?
January 5, 2017

HELP!
thank you @pypski and @nadstar
December 14, 2016

HELP!
is is b
December 14, 2016

HELP!
Earth's inner core exists at temperatures as high as 7000oC. It exists as a _______ due to the _________. A) solid; high pressure B) liquid; high pressure C) solid; high temperature D) liquid; high temperature
December 14, 2016

HELP!
Which set of numbers is correctly ordered from smallest to greatest? A) 0.009, 0.0099, 0.0909, 0.099 B) 0.0099, 0.009, 0.0909, 0.099 C) 0.0909, 0.099, 0.009, 0.0099 D) 0.099, 0.0099, 0.009, 0.0909 Help ME!
December 8, 2016

Math
Which set of numbers is correctly ordered from smallest to greatest? A) 0.009, 0.0099, 0.0909, 0.099 B) 0.0099, 0.009, 0.0909, 0.099 C) 0.0909, 0.099, 0.009, 0.0099 Eliminate D) 0.099, 0.0099, 0.009, 0.0909
December 8, 2016

Math
thank yo
December 8, 2016

Math
Lisa descended 120 feet into a cave. She then climbed up 56 feet. If her starting point was 38 feet below sea level at the mouth of the cave, what is Lisa's elevation relative to sea level now?
December 8, 2016

Math
Thannk you!
December 8, 2016

Math
The approximate distance of the moon from Earth is 4 x 105 km and the average approximate distance from the Earth to Venus is 4 x 107 km. How much farther is Venus from Earth than the moon?
December 8, 2016

Math ratios
which is equivalent to 4/16 A. 2:4 B. 10:9 C. 10/24 D. 12 to 64
December 8, 2016

AP Language-Inductive/Deductive
These are pretty hard, at least to me. Please help me check my answers. 1. Most luxuries, and the so-called comforts of life, are not only indispensable, but positive hinderances to the elevation of mankind. With respects to luxuries and comforts, the wisest have ever lived a ...
December 8, 2016

Spanish 2 Present Subjunctive
Please check my answers. I know I'm missing accents. 1. Os recomienda que ___ otra llave de recepcion. a) pedis b) pidais*** c) piden d) pida 2. Which of the following sentences is correct? a) Es importante tu estudies mucho. b) Es necesario que hacer ejercicio. c) Es ...
December 6, 2016

science
what are the answers cant see them you need to put the answers
December 1, 2016

steve plz help me on my math
I got for distributive property i put: P=2(l+w)=2(13+7)= 40 inches. and for not using distributive property I put: P=2*L+2*W=2*13+2*7=40inches
December 1, 2016

steve plz help me on my math
Find the perimeter of a rectangular area with a length of 13 inches and a width of 7 inches using distributive property and not using it.
December 1, 2016

math
you take the difference of their ages, 20, away from the total of their ages, 50, (which leaves 30) and then divide the rest of the years between them, that's 15 each.
December 1, 2016

Math
1. The point c(x,y) is reflected over the x-axis. Use arrow notations to describe the original point and its reflection. a. (x,y) --> (x,2y) b. (x,y) --> (-x,y) c. (x,y) --> (-x,-y) d. (x,y) --> (x,-y) ** 2. What is the correct description for the translation of A ...
December 1, 2016

spainsh
What do you need help with, this is not a question its just words.
December 1, 2016

social studies
It is #2
December 1, 2016

Math
You want to buy three books that are on sale at 20% off. The original prices of the books are $2.50, $4.95, and $6.00. How much will you save?
November 30, 2016

Math iniqualties and versitiles
I think the answer to both would be that they used the inverse operation and used more numbers to get the answer that they got.
November 22, 2016

Science
chicken fingers
November 10, 2016

english
what are the layers of analysis for 'if i'll why hath it given me earnest of success?' from act 1 scene 3 MACBETH SHAKESPEARE. thank-you.
November 9, 2016

english
'Agape is the highest form of love' Give two arguments with counter arguments to show you have considered more that one point of view. I need help ASAP
November 9, 2016

Math
A 73?-ton monolith is transported on a causeway that is 2500 feet long and has a slope of about 2.2°. How much force parallel to the incline would be required to hold the monolith on this? causeway?
November 3, 2016

Chemistry
How many grams of ethanol must be added to 500.0 g of water to make a solution that freezes at 0.00 degrees fahrenheit? The molal freezing point depression constant for water is 1.86 degree celsius over moles.
October 24, 2016

School Talk
What happened to "School Talk?" That was kinda helpful.
October 11, 2016

Biophysics
Estimate the flow of oxygen into the cell through a side of the muscle cell squished up against the capillary. (give both moles/sec and # molecules/sec.)
September 29, 2016

Math
Please help me with this step by step show your work problem. |-4b-8|+|-1-b^2|+2b^3 (b= -2) My work |-4b-8|+|-1-b^2|+2b^3 |-4(-2)-8|+|-1-(-2^2)|+2(-2^3) |8-8|+|-1-4|-16 8+8+5-16 16+5-16 5 Could you check my work? If it is incorrect, could you show me the steps to correct it?
September 26, 2016

Physics
Find, to 3 decimal place, the frequency of the hour hand of a clock
September 14, 2016

Spanish 2
1. Which of the following is correct? a) Maria estaba cocinando cuando ella se cortaba. b) Maria estaba cocinando cuando ella se corto. c) Maria estuvo cocinando cuando ella se cortaba. d) Maria estuvo cocinando cuando ella se corto. 2. Which of the following is correct? a) Me...
September 11, 2016

geography
Clock
September 8, 2016

Math
Sketch the graph of a continuous function f that satisfies all the stated conditions. f(0)=0; f(2)=-2 ; f(4)=f(10)=-1;f(6)=0 f’(2)=f'(6)=0 f'(x)<0 throughout (-infinity,2) and (6,+infinity) f'(x)>0 throughout 2<x<6 f''(x)<0 throughout (4...
September 2, 2016

interior decorateor
Which of the following statements is correct regarding the design concept of emphasis? A. Focal points in a room's architecture must be emphasized with contrasting colors. B. A focal point can't be established in a setting where formal balance is used. C. A room ...
August 24, 2016

Music
Can anyone help me find guitar chords for Regina spektor' song a cannon?
August 17, 2016

ENGLISH
Like a wall
August 16, 2016

Physics
A 2.8 kg duck is swimming at 0.35 m/s and a 3.4 kg goose is swimming at 0.75 m/s. Which bird would make the biggest impact on you if it carelessly swam into you? Explain. I'm not sure where to start. Could I have some help please?
July 5, 2016

Physics
A 2.8 kg duck is swimming at 0.35 m/s and a 3.4 kg goose is swimming at 0.75 m/s. Which bird would make the biggest impact on you if it carelessly swam into you? Explain. I'm not sure where to start. Could I have some help please?
July 5, 2016

history
i think it is pretty accurate, im not 100% sure however as i was out of school the whole term we spent doing WW1 because of an injur
June 27, 2016

history
Hi, I have this history question on a past exam paper i'm confused about, and was wondering if you could help? The question: "I write from the battlefield of the Great Push with thousands of shells passing in a tornado overhead, and thousands of unburied dead around ...
June 27, 2016

Science
A 450-g block is attached to a spring of spring constant 45 N/m and is in simple harmonic motion on a frictionless surface with an amplitude of 7.5 cm. A second identical block, moving at 12 m/s in line with the spring, strikes the first one when the spring is at its maximum ...
June 9, 2016

Math
Three picture frames are on a dresser.two are shaped like squares and the other is a trapazoid. how many sides are there in the frames altogether? Please help today
May 23, 2016

Life orientation
discuss the contributing factors that lead to this issue
May 10, 2016

Maths
in a game you have to guess what a number is through some clues the clues you are given are the hundreds digit is twice as large as the thousands digit the ones digit is the largest the sum of the digits is 14 the tens digit is two less than the ones digit what is the number?
April 24, 2016

Chemistry
What is the pH of a 0.052 Mole solution of HCl?
April 12, 2016

Math 143
What is the probability of not rolling a number larger than 4 with a fair die?
April 10, 2016

Math
Using only sides that are whole numbers, name the dimensions of three rectangles that have perimeters of 14 units.
April 5, 2016

Algebra
arigato
April 4, 2016

physics
explain the physics concept to why a ship sounds when moving in water?
March 26, 2016

physics
explain the physics principle why the size of tree stem decreases upwards?
March 26, 2016

physics
state or law which explains why a ship can easily sink than overturn?
March 26, 2016

physics
why is it cold in winter and hot in summer basing on physics knowledge
March 26, 2016

mathematics
the age of jane and john add up to 25years.8years ago jane was twice as old as john.how old are they now?
March 26, 2016

physics
the age of jane and john add up to 25years.8years ago jane was twice as old as john.how old are they now?
March 26, 2016

Math
There are24 counters How many counter can you make and why
March 9, 2016

pre algebra
a community has 1316 females. if 47% of the community is female and 16% of all the females are left-handed, how many people are in the community?
March 3, 2016

Math
A shipping crate carrying e-readers has a length of 19 1/3 feet, a width of 7 2/3 feet and a height of 7 5/6 feet. What is the volume of the shipping crate. Please Help.........
February 26, 2016

Math
the carpenter will buy
February 22, 2016

History
What does this mean? "It is apparent to my mind that the President thoroughly believed the tenure of office act to be unconstitutional and void . He was advised by every member of his cabinet...... "This was a punitive statue. it was directed against the President ...
February 11, 2016

math
Mrs Smith is having a party . She has 24 students . She estimates each student will eat 3/8.How many pizzas should Mrs. Smith order?
February 3, 2016

ICT
log off personal accounts
January 20, 2016

ICT
List five precautions users should take to protect themselves and their files when they are using a cybercafé.
January 20, 2016

LA 1 QUESTION PLZ HELP ASAP
I think the answer is A)
January 19, 2016

Language
thanks smart you helped allot
January 19, 2016

Tenology
Answers are 1) d 2)b 3)a 4)b Just got 100%
January 18, 2016

ALgebra
Nfckg2495;
January 9, 2016

Science
heartworm is a type of worm that enters a dogs body through a mosquito bite. it produces offspring that lodge in a dogs arteries and food off of surrounding cells. which type of relationship is this a. mutualism b. predation c. commensalism** d. parasitism
December 2, 2015

math
Distributive property. Distribute 1.9b to the number is the parenthesis (3.2b+0.8)+1.9b 1.9b multiply 3.2b+1.9b multiply 0.8
December 2, 2015

US History
Thanks!
December 2, 2015

US History
William Penn found Pennsylvania for New England or New Netherlands? Thanks!
December 2, 2015

english
An imperative sentence is to a command as a declarative sentence is to a/an A. statement. B. wish. C. question. D. exclamation. my answer is D
November 25, 2015

english
i think it's c
November 25, 2015

english
(1) Jack had been without a car since Monday. (2) The car needed a new battery, and Jack was broke. (3) Although he was embarrassed, Jack called his mother. (4) He felt he had no choice. (5) Fortunately, his mom was happy to help out. (6) She said she had the money and could ...
November 25, 2015

Science
Why the átomo never seen before
November 25, 2015

Ciencias
ocasionalmente los hospitales tienen brote de infecciones por la bacteria estafilococos la cual reciste el tratamiento con antibiótico que una vez fuera efectivo. ¿cual es la explicación más aceptable para esta situación?
November 25, 2015

Ciencias
Porque el estafiilococo es resitente a los tratamiento con antibiotico
November 24, 2015

Social Studies, Ms. Sue, Reed, Check My Work
are these all right
November 24, 2015

math
when james planted a tree 5 m from a window the tree just blocked from view a building 50 m away if the building was 20 m tall how tall was the tree?
November 15, 2015

math
when james planted a tree 5 m from a window the tree just blocked from view a building 50 m away if the building was 20 m tall how tall was the tree?
November 15, 2015

Stats
The manager of Lone Star Restaurant believes that the average wait time of the Saturday evening meal is 30 minutes. To test this belief, the manager selects 50 customers at random and computes the average wait time to be 34 minutes. Assume a population standard deviation of 12...
November 9, 2015

English
Has anyone read "The Destructors" who can help me with a few questions? My questions are: The mood on "The Destructors" is best described as humorous horrific adventuresome cold In "The Destructors" Greene uses a lot of ___ in the boy's ...
November 8, 2015

Language Arts
NEVVERMIND ITS B
November 6, 2015

Language Arts
1. In which sentence is the word blander used logically? A. The cook added spices to make the food taste blander B. If you do not like hot food, you should you blander dishes C. In ordinary circumstances, hot sauce makes the food taste blander** D. The blander dishes were ...
November 6, 2015

English
lol yes thank you
November 5, 2015

English
please help me with this sentence they are many geeks already around the world.
November 5, 2015

Spanish
So what exactly is the answer to this question? Your so called "answers" Ms.Sue where very confusing.
November 4, 2015

Math
Is the simplified form of 2square root of 3 − 2square root of 3 rational Yes or No
November 4, 2015

Math
Thank you both so much I think I got it now :)
November 3, 2015

Math
How do I rewrite this as a radical expression? (3 2/3) 1/6
November 3, 2015

math
please help me with this!!! How can I rewrite this as a rational exponent? 3 square root 2^7 Thanks
November 3, 2015

Math
write the following equation in slope intercept form 3x+4y=12 I'm lost on this question
November 3, 2015

sciences
All of the____in a given array must be the same type. Element, statement, instructions, loop.
November 3, 2015

English
A verb phrase that acts as a noun is called a(n) participal adverbial infinitive gerund Which of the following is a prepositional phrase in the sentence below? (Applause came from the bleachers.) Applause came came from from from the bleachers My answers: gerund from the ...
November 3, 2015

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