Friday

September 30, 2016
Total # Posts: 899

**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*

**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*

**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*

**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*

**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*

**Spanish**

Thanks so much! Yes I know there's an accent, every time I try and use the computer command for that particular accent, my computer spazzes out!

*November 1, 2015*

**Spanish**

Which sentence correctly substitutes the bolded phrase? Carla compro /los anteojos de sol./ Carla las compro Carla lo compro Carla los compro Carla la compro I'm confused because it's los anteojos but I thought los was part of it, and that it doesn't make it plural...

*November 1, 2015*

**English**

Read the following line from "Not Waving but Drowning." "Poor chap, he always loved larking And now he's dead" a. detached b. pleased c. objective d. critical NOT WAVING BUT DROWNING Stevie Smith Nobody heard him, the dead man, But still he lay moaning...

*November 1, 2015*

**Algebra **

Please check my answer The domain of the following relation: R: {(−4, 8), (8, 10), (5, 4), (1, 6), (5, −9)} is a. {8,10,4,6,-9} b.{-4,1,5,8) c. {-4, 8, 5,1,5} d. no domain exists I think that it is A, Am I right? Thanks

*October 30, 2015*

**MATH**

Please help

*October 28, 2015*

**MATH**

Sal's Sandwich Shop sells wraps and sandwiches as part of its lunch specials. The profit on every sandwich is $2 and the profit on every wrap is $3. Sal made a profit of $1,470 from lunch specials last month. The equation 2x + 3y = 1,470 represents Sal's profits last ...

*October 28, 2015*

**math**

thank you I understand now

*October 27, 2015*

**math**

Please Help

*October 27, 2015*

**math**

I'm so lost I have no idea. Please help Write the equation of the line that represents this graph. Show your work or explain how you determined the equations. graph of line going through ordered pairs (0, 300) and (450, 0)

*October 27, 2015*

**Algebra**

Not really. I don't understand what the problem is wanting me to do exactly. Could you explain further?

*October 9, 2015*

**Algebra**

Among all pairs of numbers with a sum of 34, find the pair whose product is maximum. Write your answers as fractions reduced to lowest terms.

*October 9, 2015*

**MATH HELP PLEASE**

Find two points on the graph of the parabola other than the vertex and x-intercepts. k ( x ) = ( x − 1 )^(2) − 6

*October 7, 2015*

**Algebra**

A rectangular auditorium seats 1960 people. The number of seats in each row exceeds the number of rows by 9. Find the number of seats in each row. Thanks!

*October 6, 2015*

**algebra**

The ratio of the tens digit to the units digit of a two digit number is 2:3. The number that results when the digits of the original number are reversed is 27 more than the original number. Find the original number.

*September 27, 2015*

**math**

the sum of the ages of two siblings is 23 and the difference between their ages is 7. if frank is the older brother of beth, determine their ages by creating a pair of simultaneous equations and solving them. this is killing me i have been working on it for hours. can only us ...

*September 10, 2015*

**Physics**

PLEASE HELP! this is do tomorrow :( I have no clue how to do any of it. A plane is flying horizontally with speed 193 m/s at a height 2010 m above the ground, when a package is dropped from the plane.The acceleration of gravity is 9.8 m/s^2. 1.What is the horizontal distance ...

*September 9, 2015*

**Physics**

A ball of mass 0.6 kg, initially at rest, is kicked directly toward a fence from a point 20 m away, as shown below. The velocity of the ball as it leaves the kicker’s foot is 18 m/s at angle of 58◦ above the horizontal. The top of the fence is 10m high. The kicker&#...

*September 9, 2015*

**ochm**

sodium lauryl sulfate can be prepared by replacing chlorosulfonic acid with another reagent. what could be used? show equations

*September 8, 2015*

**Pre-Calculus**

Write an equation to fit the description. 0° Celsius = 32° Fahrenheit. 100°C = 212°F. (Let x = degrees Celsius and y=degrees Fahrenheit.) y=9/5x+32 Is this correct?

*August 31, 2015*

**microeconimics**

one type of systematic error arises because people tend to think of benefits in percentage term rather than in absolute dollar amounts. as an example, samir is wiling to drive 20 minutes out of his way to save $4 on grocery item that cost $10 at local market. but he is ...

*July 10, 2015*

**math**

A fisherman has estimated that it takes 6 minutes to paint each square foot of the hull of his boat. How much time should the fisherman allow for the painting of the hull, if the hull were composed of two sides, each 31.5 feet by 8.00 feet? 1512.0 hours 25.2 hours 3024 hours ...

*June 18, 2015*

**math**

yeah :/ and I don't know which I should be them

*June 18, 2015*

**math**

Last month, Bill's electric bill was $80.77. This month, Bill's bill was $69.06. What is the percent decrease? 0.01 0.16 0.15 0.14 my answer is 0.15

*June 18, 2015*

**psychology **

The biosocial approach suggests that gender differences are based on: a. the hormone and neurological differences between men and women. b. how men and women think about their environment. c. the physical ability of men to protect the home and of women to bear children. d. the...

*June 18, 2015*

**Science**

If you have a rocket with a mass of 30.0 kg, how much thrust will be needed to have a thrust to weight ratio of 3:1?

*June 12, 2015*

**HISTORY**

COMPARATIVE STUDY BETWEEN PARLIAMENTARY & PRESIDENTIAL FORM OF GOVERNMENT .

*May 29, 2015*

**1st grade math**

When you find the factors of two or more numbers, and then find some factors are the same ("common"), then they are the "common factors".

*May 21, 2015*

**Math**

Thank you so much!

*May 17, 2015*

**Math**

Seven students are running for four junior class representative positions in the upcoming student council elections. How many different ways can the students be chosen?

*May 17, 2015*

**Math @Reiny**

Write the standard form equation for the following Ellipse. Use the information given below. Foci: (0,0) and (4,0) Major Axis of length 8

*May 13, 2015*

**Math**

For #1 it says: Major Axis of length 8 Foci: (0,0) and (4,0) I forgot to copy the next part. Sorry.

*May 13, 2015*

**Math**

1.) Write the standard form equation for the following Ellipse. Use the information given below. Foci: (0,0) and (4,0) 2.) Write the standard form equation for the following Hyperbola. Use the information below. Vertices (-2,1) and (2,1) Foci: (-3,1) and (3,1)

*May 13, 2015*

**physics**

help pls. i need to find the best animation of the movement of electrons and protons... the best one... pls send me the link. thanks so much.

*April 24, 2015*

**Calculus**

how can you find the bounderies given by the curve x=4sqrt(y) and y=4sqrt(x)? show your solution please. thanks to anyone who will notice this!

*March 30, 2015*

**genetics**

Wild type, or wt, refers to the genotype that is the typical genotype found in nature. True False

*March 22, 2015*

**genetics**

Auxotrophs are organisms that can grow: A.on minimal media. B.only with sunlight. C.only on amino acid supplemented media. D.only on vitamin supplemented media. E.on any media.

*March 22, 2015*

**genetics**

Though this question sucks, which enzyme elongates the new DNA strand starting at an RNA primer? A.DNA polymerase I B.DNA polymerase III C.DNA polymerase II D.DNA ligase E.RNA polymerase

*March 22, 2015*

**genetics**

The two most basic steps of DNA replication are: A.primase causes primer to bind the template and ligase copies the template. B.helicase unwinds the template and DNA polymerase binds the template. C.leading strand is copied first and lagging strand is copied second. D.the new ...

*March 22, 2015*

**genetics**

What is a replication bubble? A.A complex of replication enzymes on the DNA template strand B.A DNA sequence that initiates replication C.A tangle of denatured DNA strands near the replication fork D.A locally denatured segment of DNA where replication originates E.A localized...

*March 22, 2015*