Thursday

October 30, 2014

October 30, 2014

Total # Posts: 315

**Math**

Solve 2x^3y^-3*2x^-1y^-3
*October 23, 2014*

**Math**

Thank you so much
*October 21, 2014*

**Math**

Or simplify down to the very end
*October 21, 2014*

**Math**

I need to solve it
*October 21, 2014*

**Math**

((1/2)^-5)^2
*October 21, 2014*

**Math**

How do you solve the equation by completing the square X^2+4x=10
*October 4, 2014*

**Algebra**

How do you solve the equation by completing the square X^2+4x=10
*October 4, 2014*

**Math**

Posted by NEED HELP on Monday, September 29, 2014 at 9:12pm. Have three problems and I'm really confused how to solve/simplify 1. 4/3+square root of 5 2. -4/-4+4square root of 2 3. 1/1+ square root of 2
*September 29, 2014*

**physics**

The distance each floor of the office building is 3.0 m. Which table shows the total distance traveled and displacement of the elevator?
*September 18, 2014*

**physics**

A 1.8-kg object moves in the x direction according to the following function: x(t) = 2t2 + 3t − 5 (SI units). What is the force on the object after 2.7 s?
*September 10, 2014*

**business management**

how can an organisations strategic and business plan influence staff recruitment, selection and induction?
*March 19, 2014*

**chemistry**

A sample of gas has a mass of 0.565g . Its volume is 120 mL at a temperature of 80∘C and a pressure of 747 mmHg . what is the molar mass
*March 9, 2014*

**Physics**

A driver in a car traveling at a speed of 72 km/h sees a cat 107 m away on the road. How long will it take for the car to accelerate uniformly to a stop in exactly 104 m?
*March 2, 2014*

**Physics**

A person looking out the window of a stationary train notices that raindrops are falling vertically down at a speed of 3.6 m/s relative to the ground. When the train moves at a constant velocity, the raindrops make an angle of 60° when they move past the window, as the ...
*February 16, 2014*

**Maths**

Thanks! :)
*February 3, 2014*

**Maths**

£2000 is invested at x% interest over three years. At the end of three years the money has grown to £2963. To the nearest percentage find the rate of interest. If you could help me out I would greatly appreciate it. I've tried to figure it out numerous ways and...
*February 3, 2014*

**MATH.**

6. Combination of 9 pick 6 This seems easy but I am not sure how to set the problem up. Thanks!
*December 4, 2013*

**MATH ***

0=-16t^2+80t+96 Solve for t. Can someone please show me the steps on how to do this I can not seem to get it right. Thanks!!
*December 2, 2013*

**-MATH-**

h=-16t2+80t+96 Use this position polynomial to calculate the following: 1.The height of the object after 2 seconds 2.The height of the object after 4 seconds 3.How long the object will take to reach the ground? 4.Write the position function for an object that is thrown upward ...
*December 2, 2013*

**Math :)**

Im not sure what you mean by that??
*December 2, 2013*

**spanish**

Oh, when I said *this*, I meant that any words within the asterisks were required in the sentence. Sorry about that. Thanks for the help!
*December 1, 2013*

**spanish**

Could someone please proofread these sentences and correct any grammar/word use mistakes? I'm in Spanish III so these sentences aren't that complex. I need to use any words like *this*. Thanks! 1. Las flores rojas son bonitas. 2. El niño guapo es tímido. ...
*December 1, 2013*

**business math**

280800
*November 9, 2013*

**Calc**

A cardboard box manufacturer makes open boxes from rectangular pieces of cardboard of size 30cm by 40cm by cutting squares from the four corners and turning up the sides. A) find a mathematical model expressing the volume of the box as a function of the length of the side of ...
*September 25, 2013*

**5th grade Math**

which statement is true and how?
*September 23, 2013*

**5th grade Math**

The school received 14 rolls of free movie tickets from a local theater. There are 48 tickets in each roll. The school has 32 classes of 24 students each. If the school plans to give one ticket to each student, which of the following statements is true? A. The school will have...
*September 23, 2013*

**physics**

A lightbulb emits light that creates a shadow of a ball on a wall. If the radius of the ball is 12.3 cm, and the radius of the shadow is 29.5 cm, and the ball is 1.27 m away from the wall, how far is the lightbulb away from the wall? (For the present problem, you may assume ...
*September 14, 2013*

**physics**

A pair of vertical plane mirrors stands with an angle of β = 56.5 degrees between them. A pencil of light approaches in a direction parallel to one of them, as shown. After the pencil has left the mirrors, in which direction will it be going? (Give your answer as the ...
*September 14, 2013*

**probability **

What is the probability that an 8 digit numbers contains "97"?
*June 20, 2013*

**chemistry**

0.29
*May 27, 2013*

**Math**

13
*May 16, 2013*

**accounting**

Easy Move Company made the following expenditures on one of its delivery trucks:Feb. 4.Replaced transmission at a cost of $4,625.May. 6.Paid $1,615 for installation of a hydraulic lift.Sept. 10.Paid $69 to change the oil and air filter.Prepare the journal entries for each ...
*April 30, 2013*

**Statistics**

Suppose x has a mound-shaped distribution with sigma = 9 . A random sample of size 36 has sample mean 20. Is it appropriate to use a normal distribution to compute a confidence interval for the population mean m? Explain. Find a 95% confidence interval for m. Explain the ...
*April 27, 2013*

**Chemistry**

An aqueous solution of NaCl freezes at -1.6ºC. At what temperature will it boil? Given that K(b) for water is 0.52 deg m^-1.
*April 17, 2013*

**Math**

3.7 x 10^7, just like what the others say
*April 10, 2013*

**Stats**

n=194 P(r >/= 50) p= .12 (converted percent to decimal) q= 1-p = 1-.12 = .88 P(x) = r-.5 if r is to the left(greater than) therefore, P(x>/= 49.5) You need P(z>/= ?) So: mean (mu) = np = (194)(.12) = 23.28 stan. dev. (sigma) = sqrt(npq) = (194)(.12)(.88) = 4.526 z= (x...
*March 27, 2013*

**Algebra**

Area of rectangle is 40m squared it has a length that is 2m less than 3 times its width what are the dimensions of retangle
*March 21, 2013*

**english**

Thanks
*March 14, 2013*

**english**

I wrote, Ms.Marcus is tall and a little bit skinny. What are the two sound effects in the line above? Which words are involved in each sound effect. Please help I'm not good with English class thanks :)
*March 14, 2013*

**math**

Thanks
*March 13, 2013*

**math**

The length of a rectangle is 5cm more than twice the width. The perimeter of the rectangle is 34 cm. Find the dimensions of the rectangle. So confused on how to do this problem please help me thanks.
*March 13, 2013*

**math**

The length of a rectangle is 5cm more than twice the width. The perimeter of the rectangle is 34 cm. Find the dimensions of the rectangle. So confused on how to do this problem please help me thanks.
*March 13, 2013*

**Math**

Show that cos x +cos(x+60)=3/5[1+root 3]
*February 20, 2013*

**Accounting**

What is "loss of lawsuit" categorized as? Current/non-current assets, current/non-current liabilities, owners' equity, expenses or revenues?
*February 5, 2013*

**math**

It sure did! Thank you! :)
*February 3, 2013*

**math**

In rhombus ABCD, diagonals AC and BD are drawn. If the rhombus is graphed on a coordinate plane the slope of AC is 3/5. What is the slope of BD? Explain how you know.
*February 3, 2013*

**Math**

In rhombus DFGH, m<D = 51. Find the measure of <F, <G and <H.
*February 3, 2013*

**AP Physics B**

Through a pipe of diameter 15.5 cm , water is pumped from the Colorado River up to Grand Canyon Village, on the rim of the canyon. The river is at 564 m elevation and the village is at 2096 m . At what minimum pressure must the water be pumped to arrive at the village? The ...
*January 23, 2013*

**Math**

I think d am I right?
*December 13, 2012*

**Math**

Merchandise inventory purchases for a firm for a three month period are: January :2,000 units @ $12 per unit; February 1,800 @ $14 per unit; march 2,600 units @15 per unit. What is the mean unit cost of merchandise inventory? A.$12.82 B.$13.33 C.$13.78 D.$14.00
*December 13, 2012*

**ASAP CHEMISTRY**

you were right...the 500L should have been 500ml. Thanks for your help!!!
*December 13, 2012*

**ASAP CHEMISTRY**

Determine the molar mass of the following: 0.94g of a gas that occupies 500L at 0 degrees celcius and 1.00 (STP). I keep getting 32g/mol
*December 13, 2012*

**CHE MISTRY**

thank you so much. I was missing a step.
*December 13, 2012*

**Algebra 2**

Ryan moved into a new house with a 1750 gallon pool and needs to fill it. He can't figure out how to close his pool drain. It fills up in 1458 minutes,but it drains in 2187 1/2 minutes. When will it be full?
*November 30, 2012*

**Math / Factoring**

Imogene wants to make an open-top box for packing baked goods by cutting equal squares from each corner of an 11 in. by 14 in. piece of cardboard. She figures that for versatility the area of the bottom must be 80 in.^2. What size square should she cut from each corner? Hint: ...
*November 29, 2012*

**Math**

Can someone show me step by step on how to factor/solve this problem explaining the steps? 5.50 = (0.02x^3 + 5x) / x
*November 29, 2012*

**Math**

Factoring / solve for x 5.50x = 0.02x^3 + 5x
*November 28, 2012*

**Math**

What did you do with the exponent?
*November 22, 2012*

**Math**

Thank you!
*November 22, 2012*

**Math**

The function C = (5/9)(F - 32) expresses the Celsius temperature as a function of the Fahrenheit temperature. Find the inverse function. What is it used for?
*November 22, 2012*

**Math - Please help ASAP!**

Thank you! I just wasn't sure about that formula :)
*November 22, 2012*

**Math - Please help ASAP!**

The revenue in dollars of a company selling its products per month is given as, R(x) = 3000x - 20x^2, while the cost in dollars is given by, C(x) = 600x + 4000. Find and simplify P(x), where P(x) is the profit per month.
*November 22, 2012*

**Math**

Determine whether each of the following function is invertible and very briefly explain your answer. a) The function that pairs the number of days since your birth with your age in years. b) The function that pairs the speed of your car in miles per hour with the speed in ...
*November 22, 2012*

**Math / Inverse Functions**

... are you from UOIT?
*November 21, 2012*

**Math / Inverse Functions**

What textbook? :S
*November 21, 2012*

**Math / Inverse Functions**

The revenue in dollars of a company selling its products per month is given as, R(x) = 3000x - 20x^2, while the cost in dollars is given by, C(x) = 600x + 4000. Find and simplify P(x), where P(x) is the profit per month.
*November 21, 2012*

**Math**

and the range please!
*November 15, 2012*

**Math**

What is the domain of y = sqrt(5 - x)
*November 15, 2012*

**Chemistry**

Lead has a melting point of 327ºC, its specific heat is J/g•deg, and its molar enthalpy of fusion is 4.80 kJ/mol. How much heat, in kilojoules, will be required to heat a 500.0-g sample of lead from 23.0ºC to its melting point and then melt it?
*November 4, 2012*

**Chemistry**

Lead has a melting point of 327ºC, its specific heat is J/g•deg, and its molar enthalpy of fusion is 4.80 kJ/mol. How much heat, in kilojoules, will be required to heat a 500.0-g sample of lead from 23.0ºC to its melting point and then melt it?
*November 4, 2012*

**math**

Area of a rombus: A=1/2d1d2. Solve for d1
*October 30, 2012*

**math**

the equal signb1=b2 should be b1+b2
*October 30, 2012*

**math**

area of a trapizoid:A==h/2(b1=b2). solve for h dont know how so solve it
*October 30, 2012*

**Simple Interest Applications**

An investor purchased a 91-day, $100,000 T-bill on its issue date for $99,326.85. After holding it for 42 days, she sold the T-bill for a yield of 2.72%. a)What was the original yield of the T-bill? b)For what price was the T-bill sold?
*October 24, 2012*

**math**

thanks
*October 17, 2012*

**math**

you are driving to a vacation spot that is 1500 miles away. Including rest stops, it takes you 42 hours to get to the vacation spot. You estimate that you drove at an average speed of 50 miles per hour. How many hours were you not driving?
*October 17, 2012*

**math**

you are driving to a vacation spot that is 1500 miles away. Including rest stops, it takes you 42 hours to get to the vacation spot. You estimate that you drove at an average speed of 50 miles per hour. How many hours were you not driving?
*October 17, 2012*

**CVP Analysis - Business Math**

Engineering estimates show that the variable cost of manufacturing a new product will be $35 per unit. Based on market research, the selling price of the product is to be $120 per unit and variable selling expense is expected to be $15 per unit. The fixed costs applicable to ...
*October 16, 2012*

**Business Math - Please Help is Possible!**

Import exclusives Ltd. received an invoice dated June 28 from Dansk Specialties of Copenhagen with terms 5/20, n/45: 100 teak trays at $34.30 each; 25 teak ice buckets at $63.60 each; 40 teak salad bowls at $54.50 each. All items are subject to trade discounts of 33 1/3%, 7 1/...
*October 10, 2012*

**Business Math**

Import exclusives Ltd. received an invoice dated June 28 from Dansk Specialties of Copenhagen with terms 5/20, n/45: 100 teak trays at $34.30 each; 25 teak ice buckets at $63.60 each; 40 teak salad bowls at $54.50 each. All items are subject to trade discounts of 33 1/3%, 7 1/...
*October 9, 2012*

**Critical Thinking/Ethics**

I was thinking 1. Dismiss the employee from the company 2. Give more benefits to the current employees
*October 8, 2012*

**Critical Thinking/Ethics**

A worker came to the employer and admitted to stealing money from the firm for personal use. What could the employer do now (to regain lost revenue, employee loyalty, corporate image, etc.)? (List 3 ways to solve this problem)
*October 8, 2012*

**Critical Thinking/Ethics**

During the last full moon, the ratio to of male to female births was 1.1 to 1 in Toronto but 2.5 to 1 in Timmins, so the effect of the full moon on a baby`s gender is stronger in smaller towns. What is an alternative explanation for that?
*October 6, 2012*

**Math**

A company's employee compensation expense for August, consisting of the gross pay plus 4% vacation pay based on gross pay, was $23,200. How much was the amount of vacation pay expense?
*October 3, 2012*

**Critical Thinking/Ethics**

Ahh thanks again!
*September 28, 2012*

**Critical Thinking/Ethics**

Oh I also have one more that im stuck on.. "Mailing a 10 page survey to 1000 randomly selected households in the GTA (why is it biased)"
*September 28, 2012*

**Critical Thinking/Ethics**

Thank you!
*September 28, 2012*

**Critical Thinking/Ethics**

why is calling people listed in the phone book to conduct a survey, biased?
*September 28, 2012*

**Math**

Two of the ten most expensive cars in the world are the BMW Z8 and the Mercedes Benz CL 600. The prices of these two cars differ by more than $10,000. The price of the Z8 is $130,645. a) Assuming that you do not know which model is more expensive, write an absolute value ...
*September 27, 2012*

**Math**

Someone please help me with this!
*September 27, 2012*

**Math**

Speedy Printing charges $23 for 200 deluxe business cards and $35 for 500 deluxe business cards. Give that the cost is a linear function of the number of cards printed, find a formula for that function and find the cost of 700 business cards.
*September 27, 2012*

**algebra**

The numerator of a fraction is 7 less than the denominator if three is added to the numerator and 9 is subtracted from the denominator the new fraction is equal to 3/2. Find the original fraction.
*September 27, 2012*

**Physics**

two locomotives start at the SAME place but Locomotive A gets a half hour head start. Locomotive A travels at 100 km/hr and Locomotive B travels at 140 km/hr.Find the time elapsed and how far each traveled before they meet.
*September 26, 2012*

**Physics**

thanks you!
*September 26, 2012*

**Physics **

Locomotive A travels 100km/hr and locomotive B travels 140km/hr. Locomotive B starts 15 kilometers Behind locomotive A and travels on the same direction. Find the time elapsed and how far each traveled before they meet.
*September 26, 2012*

**physics**

if a juggernaut decelerates at 9m/s^2, how long will it take him to stop from 45m/s?
*September 19, 2012*

**biology**

How does a glycerol mulecule differ from a carbohydrate molecule? Structeral formulas
*September 18, 2012*

**Math **

If there are 5 teams in one league and 6 teams in another league and if each team from one league plays one team from the other league once how many games are played?
*September 13, 2012*

**Algebra **

If n(A U B)=22, n(A ∩ B)=8, and n(B)=12, find n(A) If n(A)=8, n(B)=14 and n(A ∩ B)=5, find n(A U B)
*September 13, 2012*

**Math**

If there are 5 teams in one league and 6 teams in another league and if each team from one league plays one team from the other league once how many games are played?
*September 13, 2012*