Friday

May 29, 2015

May 29, 2015

Total # Posts: 81,886

**math**

A popular extreme activity is bungee jumping. A person whose ankles are attached to a bungee cord, jumps off a ledge and bounces upside-down in mid-air. Suppose a person jumps off the ledge and falls 122 ft before rebounding. Consider the point at which the person rebounds to ...
*May 14, 2015*

**science(physics)**

The stream of a river is flowing with velocity 1 km/h.What should be the direction of a swimmer to cross the river straight if he can swim at the rate of 2 km/h in still water.
*May 13, 2015*

**physics**

avg speed=distancetotal/time avgspeed=(.5t*80 + .5t*40)/t =40+20=60km/hr that is average speed. It doesn't matter what distance it traveled.
*May 13, 2015*

**physics**

a car for half of its time at 80km/h and for rest half of time at 40 km/h. total distance covered is 60 km/h. what is the average speed of car find
*May 13, 2015*

**Math**

For the solutions of 4tantheta = 5tantheta + sqroot3, can both these answers be acceptable? 120 + 180n -60 + 180n
*May 13, 2015*

**Science: Space**

Please help! I'm really having trouble with this!
*May 13, 2015*

**Science: Space**

I'm having trouble finding the answers to these fill-in-the-blank questions: Our understanding of the solar system has changed from an Earth-centered model of ____ and ____ to the sun centered model of _____ and _____. I was thinking for the first 2 blanks: rocks; oxygen ...
*May 13, 2015*

**Math**

For the solutions of 4tantheta = 5tantheta + sqroot3, can both these answers be acceptable? 120 + 180n -60 + 180n
*May 13, 2015*

**accounting**

multiplying the standard price of direct materials by the standard quantity for direct materials yields:
*May 13, 2015*

**Math**

Find all the solutions of 5sintheta - 4 = 2sintheta - 4 in 0 to 2pi. 0, pi, and 2pi?
*May 13, 2015*

**Math**

Show that the equation x = 1/5(x^4 +2) has two real roots, both of which are positive. Evaluate the smaller root correct to 3 decimal places, using Newton‘s method.
*May 13, 2015*

**Math**

By drawing suitable sketches, state the number of (i) positive, (ii) negative roots of the following equation x+1 = cos x .
*May 13, 2015*

**Math**

Prove, by mathematical induction, or otherwise, that 1*1!+2*2!+3*3!+…+n*n!=(n+1)!-1
*May 13, 2015*

**math**

Jenny has a problem where she has to measure an angle that is drawn on the paper. She is going to use this protractor to do so. How precise can she be?
*May 13, 2015*

**Math**

Find the numerical value of the coefficient x^11 in the expansion of (x^2+1/x)^10 in the powers of x.
*May 13, 2015*

**Math**

A ball is dropped from a height of 16 feet. Each time the ball dropped h feet, it rebounds 0.81h feet. Find the total vertical distanced travelled by the ball.
*May 13, 2015*

**Math**

The sixth term of an arithmetic sequence is 20.6 and the 9th term is 30.2. Find the 20th term and find the nth term.
*May 13, 2015*

**Math**

How to find the zeros of -16t^2 + 200 = 0?
*May 13, 2015*

**Math**

What are all the solutions for 4sintheta + 1 = 2sintheta from 0 to 2pi? Would it be 7pi/6 and 11pi/6?
*May 13, 2015*

**Math**

What is cos 2theta for sin theta = -2/13 in 180 degs < theta < 270 degs?
*May 12, 2015*

**Pre-Algebra**

1. Given the function rule f(x) = x² – 3x + 2, what is the output of f(–2)? 2. Suppose you earn $12 each time you mow the lawn. Write the function describes the relationship between your total earnings E and the number of times you mow the lawn, m? 3. Mia ...
*May 12, 2015*

**Algebra II**

what value of x makes the following equation true? -5(x + 10)2=390,625 All work must be shown and explantions must be in complete sentences.
*May 12, 2015*

**Algebra ii**

Must show all work.
*May 12, 2015*

**Algebra ii**

What value of x makes the equation true? (x-16)4/3=81
*May 12, 2015*

**Functions**

knowing that log to the base 2 of 7 is 2.807 what is log to the base 2 of 14
*May 12, 2015*

**Math**

Lavonne’s mother has brown eyes, and her father has blue eyes. Lavonne has brown eyes, and her husband has blue eyes. She knows that her children are equally likely to have brown or blue eyes. What is the probability that her first child will have blue eyes? If her first ...
*May 12, 2015*

**Life orintation**

Evaluate the extent to which the service delivery protest you have described met with the prtocesses
*May 12, 2015*

**Math**

What is the question?
*May 12, 2015*

**Chemistry-check answer please**

Correct
*May 12, 2015*

**physics**

A skateboarder starts up a 1.30m high, 25.0° ramp at a speed of 6.70m/s. The skateboard wheels roll without friction. How far from the end of the ramp does the skateboarder touch down?
*May 12, 2015*

**Maths**

Given the equation y=2x-4 of an exponential function f 1)write down the equation of horizontal asymptote of f 2)determine the y intercept of f 3)determine the y value of a point on f with x=-2 4)draw the graph of the function of f showing all critical poins and asymptotes 5)...
*May 12, 2015*

**Ms. Sue PLZ HELP!!!(science)**

Thanks and I just saw ur answer (Pax) but i submitted before and I got a 100%!!!!!!!! Yay, anyway thanks, I did not ask 1 question which I was sure of 1 and I got it right to, yay and thanks soooooo much!!!!:):)
*May 12, 2015*

**Anyone HELP!!!(science)**

Ok thanks anyway!:)
*May 12, 2015*

**Ms. Sue PLZ HELP!!!(science)**

Study the amino acid sequences of the same protein taken from four different species of plants. Which pair of plants is most closely related? Species 1: -A-P-A-C-W- Species 2: -G-P-G-S-F- Species 3: -A-P-A-C-F- Species 4: -N-K-M-H-H- a. Species 2 and 4 b. Species 1 and 3*** c...
*May 12, 2015*

**Ms. Sue PLZ HELP!!!(science)**

Yay I'm right:)
*May 12, 2015*

**Ms. Sue PLZ HELP!!!(science)**

Ok anyway thanks:)
*May 12, 2015*

**Ms. Sue PLZ HELP!!!(science)**

Humans developed antibiotics to fight bacterial infections. However, some antibiotics are no longer effective in killing the bacteria they once killed. How does the theory of evolution explain this? a. The antibiotic mutated the bacteria, which allowed resistance to develop. b...
*May 12, 2015*

**math**

29.64 acres = how many hectares
*May 12, 2015*

**food styles of catering**

Which of the following common kitchen items is a handy alternative to a melon 8?
*May 12, 2015*

**introduction to catering **

Which of the following would you want to do when developing a marketing position?
*May 12, 2015*

**math**

So it wouldn't be A??
*May 12, 2015*

**math help please**

Uh yeah what Nelly said? C is the answer?
*May 12, 2015*

**Physics**

Does displacement always have to include angles and direction? For example a man travels 3 m (N) and 4m (E). Can you just put 5m for displacement or do you have to put the angle and direction? Explain why
*May 11, 2015*

**Social Studies 9**

is in western north
*May 11, 2015*

**math**

The radius of a 12 inch right circular cylinder is measured to be 4 inches, but with a possible error of ±0.2 inch. What is the resulting possible error in the volume of the cylinder? Include units in your answer.
*May 11, 2015*

**Algebra**

Find the area of the label on a can with a radius of 5.1 centimeters and a height of 2.9 centimeters
*May 11, 2015*

**Physics**

Does displacement always have to include angles and direction? For example a man travels 3 m (N) and 4m (E). Can you just put 5m for displacement or do you have to put the angle and direction? Explain why.
*May 11, 2015*

**math**

A 160‐inch strip of metal 20 inches wide is to be made into a small open trough by bending up two sides on the long side, at right angles to the base. The sides will be the same height, x. If the trough is to have a maximum volume, how many inches should be turned up on ...
*May 11, 2015*

**American Government**

McCulloch v Maryland is an important case because it was one of the cases whereby the Supreme Court
*May 11, 2015*

**math**

Find the x-coordinates where f '(x) = 0 for f(x) = 2x + sin(4x) in the interval [0, π].
*May 11, 2015*

**math**

A particle moves on a line away from its initial position so that after t hours it is s = 6t2 + 2t miles from its initial position. Find the average velocity of the particle over the interval [1, 4]. Include units in your answer.
*May 11, 2015*

**math**

the state of Colorado is roughly the shape of a rectangle the is miles by 382 miles. what is its area
*May 11, 2015*

**IT/235 - IMAGE EDITING AND IMPLEMENTATION**

How would the photography affect the day-to-day store operations under each model?
*May 11, 2015*

**S.S**

John D. rockefeller built oil empire by creating ________. A. dividends B. a railroad industry C. labor unions D. a monopoly I think it's A or B
*May 11, 2015*

**math**

(x+2)2-1=3
*May 11, 2015*

**L.A the book "The Giver"**

In what ways do people in the community lack emotion and emotional connections to others. select all that apply A. the community does not recognize death and thus "releases" old people B. the community holds ceremonies during an annual two-day holiday C. rather than ...
*May 11, 2015*

**L.A Ms. Sue? or anybody?**

Oh okay. It's a good book so far. You should read it sometime. :) anyways, thank you~
*May 11, 2015*

**L.A Ms. Sue? or anybody?**

1. Which of the following aspects of the setting is evidence that the giver is an example of science fiction A. Jonas rides a bike to school every day B. jonas's father works in a daycare center C. a loudspeaker makes announcements to the community. D. Jonas lives in a ...
*May 11, 2015*

**ALGEBRA help ASAP**

f(x)=-2x-5 for x = 3
*May 11, 2015*

**precalculus**

I need help knowing how to find an equation in standard form that fits the requirements. major axis length 6 on y-axis, minor axis length 4
*May 11, 2015*

**math**

the answre is a determined by
*May 11, 2015*

**Math last question.**

Thank you!
*May 11, 2015*

**Math last question.**

(3x^2 - 7x -4) - (6x^2 -6x +1) It's a polynomial I think the answer is D or C, but I'm not sure which one. Help please A. 3x^2 - 13x - 5 B. 9x^2 - x + 5 C. -3x^2 -13x + 5 D. -3x^2 -x -5
*May 11, 2015*

**Math**

o0[kii0puo
*May 11, 2015*

**Math**

Yes sorry. A. -9x^2 - 8x + 2 B. -5x^2 + 8x - 2*** C. 5x^2 -8x + 2 D. 5x^2 -4x - 2 I choose B
*May 11, 2015*

**Math **

add or subtract. P.s this is a polynomial. (2x^2 + 6x + 1) + (-7x^2 + 2x - 3) A. -9x^2 -8x + 2 B. 5x^2 + 8x - 2*** C. 5x^2 - 8x + 2 D. 5x^2 -4x -2 i choose B. check please
*May 11, 2015*

**l o**

how to engage in protests
*May 11, 2015*

**life orientation project**

briefly discuss the following processes that the community must engage whenever there is an issue before and during a protest
*May 11, 2015*

**L.O**

list and discuss any four factors that could threaten or limit the core functions of the media
*May 11, 2015*

**life orientation**

r
*May 11, 2015*

**pre calculus **

Given that sinx= 3/5 and that x terminates in Quadrant 2 , determine the values for cosx and tanx Find Cos x/2
*May 11, 2015*

**math**

In a camp ,there is a meal for 120 men or 200 children . if 150 children have taken the meal, how many men will be catered to with remaining meal
*May 11, 2015*

**math**

population increasing at rate of 5% per year current population 7,000,000 what will it be in 12years
*May 10, 2015*

**math**

A particle moves along the x-axis with position function s(t) = esin(x). How many times in the interval [0, 2π] is the velocity equal to 0?
*May 10, 2015*

**Chemistry**

DrBob222, No. We have used the Solubility Curve before, but it doesn't show NaNO3 at 40 C. All I have is the 3m, 40 C, and you can figure out the molar mass (85). Any idea how to go about this?
*May 10, 2015*

**Chemistry**

I need to figure out whether NaNO3 is saturated, unsaturated, or supersaturated in a 3 molal solution at 40 degrees Celsius. I am completely stuck right now, and am not sure where to go with this.
*May 10, 2015*

**math**

While building a snowman, a large snowball is created at the rate of 5 inches per hour. How fast is the volume of the snowball changing at the instant the snowball has a radius of 10 inches?
*May 10, 2015*

**chemistry **

what is the solubility in grams of KCL3(s) per 100 ml of water?
*May 10, 2015*

**Geometry**

The figure below represents an oval shaped track. the rounded portion of the track are semicircles. If you were to run one lap of this track, how far would you run? Pic: LONG OVAL, THE WHOLE LENGTH IS 106 FT. THERE ARE TWO LINES NEAR THE OPPOSITE ENDS WHICH IS 12 FT LONG. (...
*May 10, 2015*

**math**

a locker combination has tow nonzero digits and digits can be used twice. the first number is 8.what is the probality that the second number is 8
*May 10, 2015*

**Physics**

A girl swings on a playground swing in such a way that at her highest point she is 4.1 m from the ground, while at her lowest point she is 0.8 m from the ground.What is her maximum speed? The acceleration due to gravity is 9.8 m/s2 .Answer in units of m/s.
*May 10, 2015*

**chemistry**

estimate the boiling point of Pcl3
*May 10, 2015*

** physics**

A bar of gold measures 0.15 m × 0.050 m × 0.050 m. How many gallons of water have the same mass as this bar?
*May 10, 2015*

**chemistry dont know how to do it**

dG for the formation of Hi(g) from its gaseous elements is -20.2 kj/mol at 500k. when the partial pressure of HI is 10 atm, and I2 0.001 atm, what must the partial pressure of hydrogen be at this temperature to reduce the magnitude of dG for the reaction to 0. H2(g)+I2(g)----&...
*May 10, 2015*

**thermodynamics**

dG for the formation of Hi(g) from its gaseous elements is -20.2 kj/mol at 500k. when the partial pressure of HI is 10 atm, and I2 0.001 atm, what must the partial pressure of hydrogen be at this temperature to reduce the magnitude of dG for the reaction to 0. H2(g)+I2(g)----&...
*May 10, 2015*

**life orientation**

evaluate the extent to which the service delivery protest you have described in 2 above met or did not meet with processes that you have research end in 3 above
*May 10, 2015*

**S.S**

Oh, so it's A
*May 10, 2015*

**S.S**

The merrimack and the monitor changed naal warfare because they engaged in the first battle between A. metal covered ships B. wooden ships C. aircraft carriers D. ships carrying guns I say its B, please check.
*May 10, 2015*

**physics**

sixty complete waves passes a particular point in 4 seconds if the distance between 3 successive troughs of the wave is 15m.calculate the speed of the wave
*May 10, 2015*

**life oriantation**

What did the people of malamulele do before the protest
*May 10, 2015*

**life orintation**

I need answers
*May 10, 2015*

**life orintation**

full information
*May 10, 2015*

**life orintation**

Answers for introduction
*May 10, 2015*

**life orintation**

Answers of all the question
*May 10, 2015*

**life orintation**

given the same task.
*May 10, 2015*

**life orintation**

When they engage they must protest in public areas
*May 10, 2015*