Thursday

August 25, 2016
Total # Posts: 319

**Foundation Chem**

Why do we need to keep water warm in a limiting reactant experiment around 80 to 90 degree celcius
*July 29, 2016*

**math**

A spinner is divided into 8 equal parts. They are numbered 1-7 and the 8th has a star. What is the probability of it landing on the star?
*July 18, 2016*

**Math**

well it said on my homework
*May 2, 2016*

**Math**

what is the greatest perimeter of a rectangle with an area of 39 square feet
*May 2, 2016*

**math**

lamar made a garden in the shape of a rectangle with an area of 36 square feet. The shorter side of the garden measures 4 feet. Explain how you can find the perimeter of the garden
*April 28, 2016*

**math**

well its not me who typed it shes someone else
*April 19, 2016*

**math**

The Flying Zucchini Circus Troupe has a human cannon- ball act, shooting a performer from a cannon into a spe- cially padded seat of a turning Ferris wheel. The Ferris wheel has a radius of 40 feet and rotates counterclockwise at one revolution per minute. The special seat ...
*April 19, 2016*

**Math**

Name the lengths of the sides of three rectangles with perimeters of 12 units. use only whole numbers
*April 14, 2016*

**Math**

is a trapezoid a parallelogram explain why or why not
*April 5, 2016*

**Math**

why my space bar is so old
*April 4, 2016*

**Math**

oh shoot but it looks like that but may like / \ / \ / \ / \ \ / \ / ----- there is the shape
*April 4, 2016*

**Math**

_ / \ \_/
*April 4, 2016*

**Math**

please help
*April 4, 2016*

**Math**

draw one diagonal in the shape for exercise 8
*April 4, 2016*

**cs203**

Write a MIPS assembly language program that displays the binary string of the content of register $t0.
*April 2, 2016*

**Math-7th grade**

A scale drawing is a parallelogram with a base of 8 inches, a height of 3 inches, and a side length of 4 inches. What is the perimeter and area? Perimeter 3x4x8 = 96 inches Area 8x3 = 24 inches Can this be correct? Sounds too easy. If it is correct, what if scale factor is 4:1...
*March 28, 2016*

**Real Analysis (Math)**

Prove x < y + ϵ for every ϵ > 0 is equivalent to x <= y + ϵ for every e > 0. I thought it may be trivial, but I am not sure. HELP!!
*February 26, 2016*

**Discrete Math**

Prove that (A ∩ B) ∪ C= A ∩ (B ∪ C) if and only if C ⊆ A. I really need some help on structuring the proof!
*February 25, 2016*

**Algebra**

x+=-5
*October 20, 2015*

**algebra**

write an inequality that represent the fact that while make a product you cant exceed 5,000. answer: x < 5000
*October 16, 2015*

**Math**

Three hundred people apply for three jobs. 80 of the applicants are women If three persons are selected at random, what is the probability that one is a woman? (Round the answer to six decimal places.)(d) If three persons are selected at random, what is the probability that ...
*September 21, 2015*

**Probability**

hundred people apply for three jobs. 110 of the applicants are women. (a) If three persons are selected at random, what is the probability that two are women? (Round the answer to six decimal places.)
*September 19, 2015*

**Physics**

To get the humidity change: 0.8-0.5=0.3 Humidity change times density of water vapour gives the density of water vapour. 0.3*22.8= 6.84 This times volume gives the mass of water vapour to be removed. 2000*6.84=13.7
*August 19, 2015*

**physics**

75kPa=75000Pa 1atm= 101325pa P1V1 = P2V2 150ml*101325=75000V2 V2=202.65ml =202ml
*August 17, 2015*

**c++**

MACHINE PROBLEMS #2 1. Create a C++ program that would input the following data about a merchandise: Product Number, Item Description, Original Price, Estimated Years of used of a Merchandise, Salvage Value of Merchandise. Compute the Depreciation and Rate of Depreciation of ...
*August 5, 2015*

**Science**

use the idea of energy to explain how energy flows through food chains in the rock pool
*July 12, 2015*

**Math**

Neil needs to cut 3 long boards into 9 smaller boards. The first is 10 ft, the second is 16 ft, and third is 18 ft. The table lists the smaller boards Neil needs. Use a drawing to show how he can divide the 3 boards so there is no waste.
*April 14, 2015*

**math**

Neil needs to cut 3 long boards into 9 smaller boards. The first is 10 ft, the second is 16 ft, and the third is 18 ft. The table lists the smaller boards Neil needs. Use a drawing to show how he can divide the 3 boards so there is no waste. Length of board Number needed 4 ft ...
*April 14, 2015*

**math please help**

Determine whether it is possible to draw a triangle given each set of information. Sketch all possible triangles where appropriate. Calculate then label all side lengths to the nearest tenth of a centimetre and all angles to the nearest degree. A) b= 3.0 cm, c=5.5 cm and angle...
*April 6, 2015*

**Math**

Determine whether it is possible to draw a triangle given each set of information. Sketch all possible triangles where appropriate. Calculate then label all side lengths to the nearest tenth of a centimetre and all angles to the nearest degree. A) b= 3.0 cm, c=5.5 cm and angle...
*April 6, 2015*

**math**

Determine whether it is possible to draw a triangle given each set of information. Sketch all possible triangles where appropriate. Calculate then label all side lengths to the nearest tenth of a centimetre and all angles to the nearest degree. A) b= 3.0 cm, c=5.5 cm and angle...
*April 6, 2015*

**math- please help me - Ms. Sue**

paym = $29.95 for A is correct. thank you.
*April 2, 2015*

**math- please help me - Ms. Sue**

Original question: Sheds R Us sells $600 sheds on a monthly payment plan over 2 years. a) If the interest rate is 1.5% per month, find the monthly payment. Answer = $ b) If instead the interest rate is 1.75% per month, find the monthly payment Answer = $ my solutions tried: 1....
*April 2, 2015*

**math- please help me - Ms. Sue**

$34 is coming up wrong too
*April 2, 2015*

**math- please help me - Ms. Sue**

I = PRT I = 600 * 0.18 * 2 I = 216 816 / 24 = 34 a month payment?
*April 2, 2015*

**math- please help me - Ms. Sue**

Sheds R Us sells $600 sheds on a monthly payment plan over 2 years. a) If the interest rate is 1.5% per month, find the monthly payment. Answer = $ b) If instead the interest rate is 1.75% per month, find the monthly payment Answer = $ can anyone help me with which format i ...
*April 2, 2015*

**math- please help me**

1.015(600 / 24) = $25.38 is showing up wrong. 1.0175(600/24) = 25.44 which is showing wrong too.
*April 2, 2015*

**math- please help me**

Sheds R Us sells $600 sheds on a monthly payment plan over 2 years. a) If the interest rate is 1.5% per month, find the monthly payment. Answer = $ b) If instead the interest rate is 1.75% per month, find the monthly payment Answer = $ can anyone help me with which format i ...
*April 2, 2015*

**Finances**

Sheds R Us sells $600 sheds on a monthly payment plan over 2 years. a) If the interest rate is 1.5% per month, find the monthly payment. Answer = $ b) If instead the interest rate is 1.75% per month, find the monthly payment Answer = $ can anyone help me with which format i ...
*April 1, 2015*

**7th grade math (probability)**

32 gal/min is = to
*March 30, 2015*

**social studies**

a Do you think it was possible for a native person to adapt to victorian society? was such adaptation necessary ? Was it right? why or why not?
*March 24, 2015*

**Math Help**

Hi! Can someone help check this for me and see if I'm doing it right? Thanks!! :) Directions: Use the Half-Angle formulas to determine the exact value of sin(pi/12). Here's what I have: π/12 = ( 180° ) / 12 = 15°. = sin ( π/12 ) = sin 15° = sin ( ...
*February 3, 2015*

**Math**

Thanks doll
*December 29, 2014*

**Math**

The edge of a cube was found to have a length of 50 cm with a possible error in measurement of 0.1 cm. Based on the measurement, you determine that the volume is 125,000 cm3. Use tangent line approximation to estimate the percentage error in volume.
*December 29, 2014*

**math**

Ken uses 6 apples and 2 bananas to make a fruit salad. He puts twice as many oranges as bananas in the salad. How many pieces of fruit will Ken use to make 2 fruit salads?
*December 2, 2014*

**Physics- formula help**

Well the question never mentioned it if it was at a constant speed, the weight of the object is 1.42N and the acceleration is 4.9m/s^2 how would I calculate that?
*December 1, 2014*

**Physics- formula help**

How do you calculate air resistance on an object if you have how much the object weighs and the acceleration?
*December 1, 2014*

**Chemistry **

A sample of lithium sulfate, LiSO4, contains 6.78 x 10^23 formula units. a) How many moles of Li+ ions are there in the sample? b) How many moles of ions are there in the sample? My work: I think a) is 2.26 moles And b i am not sure
*November 24, 2014*

**Chemistry **

A sample of lithium sulfate, Li2SO4, contains 6.78 x 10^23 formula units a) How many moles of Li+ ions are there in the sample b) How many moles of ions are there in the sample
*November 24, 2014*

**Math HELP!**

2/3
*November 6, 2014*

**Calculus**

Match the rule with the title: ____ 3. d/dx [f(x)/g(x) ]=(g(x) f^' (x)-f(x) g^' (x))/[g(x)]^2 ____ 4. d/dx [f(g(x))]=f^' (g(x))∙g'(x) ____ 5. d/dx [f(x)∙g(x)]= f(x) g^' (x)+g(x) f^' (x) ____ 6.d/dx [x]=1 ____ 7. d/dx [f(x)+g(x)]= f^' (x...
*November 6, 2014*

**chemistry**

Calculate the Calorimeter Constant (Ccal) if 25.00 g of water at 50.21°C was added to 25.00 g of water at 25.00 °C, resulting in an equilibrium temperature of 35.00 °C?
*November 2, 2014*

**Science PLEASE HELP!**

So basically the reason why Lithium is more reactive than Neon is because, Reactivity increases for metals as you go down a group, and for nonmetals the reactivity increases as you go up on a group. BUT AS YOU SEE, on the periodic table it seems as if Neon would have a ...
*October 17, 2014*

**Biology**

There are many reasons how human activities can lead to an imbalance of biochemical cycling, anything that the natural environment is not familiar with can damage or throw off biochemical balance One of the negative impacts of eutrophication and increased algal growth is a ...
*October 17, 2014*

**science**

Your welcome, I hope I explained it well enough :)
*October 17, 2014*

**science**

Here's and example; Hot water vs. Cold water. When you mix sugar in hot water it dissolves faster and better then it would in a cold water because of the temperature. When the temperature of water is higher(hot) the water molecules move faster so they are able collide with...
*October 17, 2014*

**7th grade math**

No, the question is asking for the FEWEST account of magazines sold to make $200 for the school. -So we know that in order to make $200 for the school they must make an actually $400 profit because the company will take half of the money. But we must include the $18 fee. So in...
*October 17, 2014*

**Bio**

Peripheral protein
*October 16, 2014*

**Science**

1. yes because earth's revolution around the sun along with spinning on its axis gives us our seasons and depending where we are on earth, the sun may be more intense depending on where are in our revolution around the sun. this creates the different climates around the ...
*October 5, 2014*

**chemistry**

What is the percent mass of calcium in a calcium supplement if 1.06 g of calcium carbonate is extracted from a 2.82 g pill
*October 5, 2014*

**math**

If you know the order from least to greatest of 5 negative rational numbers, how can you use the information to order the absolute values of those numbers from least to greatest
*September 17, 2014*

**trigonomety**

FIND THE HEIGHT OF A TREE,IF 120 FT. FROM ITS BASE THE ANGLE OF ELEVATION OF ITS TOP IS 10 DEGREE 18 MINUTES
*June 30, 2014*

**grade 3 math**

1) what is the greates perimeter of a rectangle with an area of 39 square feet? 2) What is the least perimeter of a rectangle with an area of 32 square feet? 3) A rectangle has an area of 42 square inches. Which has a greater perimeter, the rectangle with the dimensions 21 x2 ...
*April 29, 2014*

**grade 3 math**

two rectangles have an area of 36 square inches. Name two possible perimeters for the rectangles.
*April 29, 2014*

**Math 3rd grade**

Lee wants to cut this piece of canvas into two rectangles that are 3 x 2 and 3 x 5. He wants the sum of the areas of the two small rectangles to be the same as the area of the large rectangle. Can he do this? explain.
*April 28, 2014*

**geometry**

ee wants to cut this piece of canvas into two rectangles that are 3 x 2 and 3 x 5. He wants the sum of the areas of the two small rectangles to be the same as the area of the large. Can he do this? explain.
*April 28, 2014*

**math**

Suppose Maya made another sign with an area of 48 square inches. would this sign be larger or smaller than the sign with an area of 48 square centimeters? Explain how you know.
*April 14, 2014*

**managerialaccounting**

Describe how total variable costs and unit variable costs behave with changes in the level of activity.
*March 4, 2014*

**physics**

A string under a tension of 42.6 N is used to whirl a rock in a horizontal circle of radius 2.47 m at a speed of 19.7 m/s. The string is pulled in and the speed of the rock increases. When the string is 1.13 m long and the speed of the rock is 46.9 m/s, the string breaks. What...
*February 22, 2014*

**physics**

A block M1 of mass 16.5 kg sits on top of a larger block M2 of mass 26.5 kg which sits on a flat surface. The kinetic friction coefficient between the upper and lower block is 0.425. The kinetic friction coefficient between the lower block and the flat surface is 0.125. A ...
*February 22, 2014*

**physics**

A 33.3- kg block (m1) is on a horizontal surface, connected to a 5.1- kg block (m2) by a massless string. The pulley is massless and frictionless. A force of 220.1 N acts on m1 at an angle of 32.p deg. The coefficient of kinetic friction between m1 and the surface is 0.201. ...
*February 20, 2014*

**physics**

A 33.3- kg block (m1) is on a horizontal surface, connected to a 5.1- $kg$ block (m2) by a massless string. The pulley is massless and frictionless. A force of 220.1 N acts on m1 at an angle of 32.p deg. The coefficient of kinetic friction between m1 and the surface is 0.201. ...
*February 20, 2014*

**math 3**

Unknown
*February 12, 2014*

**math**

Idk
*January 2, 2014*

**Statistics **

Explaining confidence. A student reads that a 95% confidence interval for the mean ideal weight given by adult American women is 140 ± 1.4 pounds. Asked to explain the meaning of this interval, the student says, “95% of all adult American women would say that ...
*December 1, 2013*

**KINDERGARTEN**

HOMEWORK HAVE CHILDREN WRITE A ROW OF EACH LETTER AND THEN WRITE THE WORDS
*November 14, 2013*

**science**

how do the words matter element atom crystal compound and molacule relate
*September 19, 2013*

**Algebra**

I need help with solving these absolute value inequalities. I have to graph them as well. y< |x+2|+4 and y>|x+5|+3 I just don't know what to do without a coefficient in front of the absolute value!
*September 12, 2013*

**childcare**

write a letter to day care center supervisor requesting written permission to observe a child at the center
*August 26, 2013*

**Early childhood**

Teachers usually ask more of this type of question even if it is NOT recommended: A. convergent. B. divergent. C. open-ended. D. recall.
*August 25, 2013*

**chemistry**

Sorry! I'm not so sure.
*June 27, 2013*

**chemistry**

1.64
*June 12, 2013*

**math**

question 1 use the laws of logarithms to simplify the expression Inx(x+2)(x+1) question 2 (18m^2n+6m^3n+12m^4n^2)/ (6m^2n)
*May 6, 2013*

**Chemistry**

A student determined the H of neutralization of nitric acid (HN03) mixed with NaOH solution, using the procedure described in this experiment. Fifty milliliters of 1.00M HN03 was added to 50.5 mL of 1.00M NaOH solution, and the following time-temperature data were recorded. A ...
*May 1, 2013*

**College Physics**

A uniform meter stick of mass M has an empty paint can of mass m hanging from one end. The meter stick and the can balance at a point 19.9 cm from the end of the stick where the can is attached. When the balanced stick-can system is suspended from a scale, the reading on the ...
*April 27, 2013*

**Calculus**

In a test run, a new train travels along a straight-line track. Data obtained from the speedometer indicate that the velocity of the train at any time t can be described by the velocity function v(t) = 8t (0 _< t _< 30) a. Find the position function of the train. b. Find...
*April 26, 2013*

**Calculus**

In a test run, a new train travels along a straight-line track. Data obtained from the speedometer indicate that the velocity of the train at any time t can be described by the velocity function v(t) = 8t (0 ¡Ü t ¡Ü 30) a. Find the position function of ...
*April 26, 2013*

**chemistry**

br ne s
*April 2, 2013*

**algebra1**

mr jones estimates his profit starting in 2006 will be given by the formula p=7t^2-14t+10 where t is number of years and p is the profit.if this formula is correct,when will mr.jones have a profit of more than $1000
*March 28, 2013*

**physics**

After 35 minutes of running, at the 8-{\rm km} point in a 9-{\rm km} race, you find yourself 200m behind the leader and moving at the same speed. What should your acceleration be if you are to catch up by the finish line? Assume that the leader maintains a constant speed ...
*March 20, 2013*

**english**

are there any figurative language in the book Witch hunt the mysteries of salem?
*March 2, 2013*

**math**

the first term of a linear sequence is 5,nd d common difference is -3 find the 15 term
*February 24, 2013*

**Math**

If 2 cups of rice requires 4.5 cups of water, what is the total number of cups of water needed to prepare 5 cups of the same rice?
*December 13, 2012*

**science**

a toy car is traveling .5 meters per second.It goes 3.5 seconds. how far did it travel.
*November 20, 2012*

**Math**

12/42=4w/14
*November 11, 2012*

**trigonometry**

Dwight Howard is playing center for the Los Angeles Lakers. During the game, he blocks a shot. When Howard blocks the ball, he is 12 feet off of the ground (including his height). The ball is hit down at an angle of depression of 63°. Find the distance that the ball ...
*October 18, 2012*

**physical sicence**

if a gives a force 2kg object an acceleration 1.6,/s2 what does the smae force give to an object of 4kg
*October 12, 2012*

**anatomy/physiology I**

In physiology, it's all about the function of cell and tissue and you need a good background in histology to reason properly. Skin is the best example. If you know what type of cell all the layers are made of it's easy to figure out some dermatology pathologies.
*October 8, 2012*

**anatomy/physiology I**

Not really, its more for histology. But between the two, its more important for the physiology component.
*October 8, 2012*