05/06/15

Chemistry help
A gas has a pressure of 2.03 atm when itsvolume is 3.86 L. What will the pressurebe when the volume is changed to 1.44 L, assuming constant temperature? Express thefinal pressure in torr.Answer in... more
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05/06/15

Chemistry Help
020 (part 1 of 3)  Use Boyle’s law to find V2 givenP1=372 torr, V1=137 mL, P2=719 torr.Answer in units of mL. 021 (part 2 of 3) Use Boyle’s law to find V1 givenP1 = 0.98 atm, V2 = 572.124 mL,P2 =... more
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05/06/15

Factor the tirinomals completly then solve. Look for GCF first 15n^2-27n-3=3 and -2x^2-28x-96=0
PLEASEE helpPPP need answer quick 
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05/06/15

Ladders used by fruit pickers are typically tapered with a wide bottom for stability and a narrow top for ease in picking.
a)  If the bottom of such a ladder is 49 inches wide and the top step is 24 inches wide, how many steps does the ladder have if each step is 2.5 inches shorter than the one below it? b)  What is... more
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05/06/15

7 girls and 6 boys go into a store at the same time. There are 5 salesmen to help them. Find the probability that the salesmen will first help (continued below)
numbers of girls and boys.   1. P(3 girls or 3 boys)  ans. 105/143   2. P(at least 3 girls)  ans. 84/143   3. P(at least 2 boys) ans. 32/39   I have the correct answers for these Mutually... more
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05/05/15

Algebra I Help - Word Problem
An electricity facility has three square solar panel fields. The diagram shows their arrangement and areas (in square meters). The diagram has three boxes  4x^2 + 40x + 100  and x^2 and x^2 + 40x +... more
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05/05/15

How many miles were driven in the city and how many miles were driven on thw highway?
A car goes 18 miles on one gallon of gas in the city and 24 miles on the highway. If the car goes 465 miles on a full tank of 24 gallons of gas, how many miles were driven in the city and how many... more
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05/05/15

If a|b and n is any interger, then what is always true?
what does the straight line notation between the a and b mean?
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05/05/15

Maria bicycles 4 km/h faster than Kyle. In the same time it takes Kyle to bicycle 36 km, Maria can bicycle 48 km. How fast does Maria travel?
Need Help with this algebra word problem.
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05/05/15

Algebra Question - Question in description
An electricity facility has three square solar panel fields. The diagram shows their arrangement and areas (in square meters). * The diagram has three boxes and the first box contains 4x^2 + 40x +... more
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05/05/15

Math Question
You have 30 associates (2 are indirect/not on the floor). Each associate works 8 hours/day, 5 days/week, can produce 150 units/week, and has two 15 minute breaks/day. Question 1: How many total... more
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05/05/15

Temperature
Over a period of time, a hot object cools to the temperature of the surrounding air. This is described mathematically as Newtons Law of Cooing T=C+(t_0-C)e^-kt, where t is the time it takes for an... more
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05/04/15

Write the equation of the line in standard form
Through (2,-7) and (3,-1)
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05/04/15

Write the equation of the line in standard form
Through (-4,7); perpendicular to x-2y=0
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05/04/15

Write the equation of the line in standard form
through (-4,7); parallel to 3x+4y=4
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05/04/15

Determine whether each pair of lines is parallel, perpendicular, or neither
2x=y+7 and y=2x+3  
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05/04/15

A clerk has 4 different letters that need to go in 4 different envelopes. What is the probability that all 4 letters are placed in the correct envelopes.
We are working with permutations and combinations along with theoretical probability. 
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05/04/15

Proving continuity
F(x)={2x+5; x<2.           A) lim x~2-          {9; x=2.                 B) lim x~2+          {x^3; x>2.             C) is f(x) continuous at x=2 I completely forget how to solve... more
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05/04/15

distributive law to factor
Use the distributive law to factor the following. Check multiplying. 40x + 8y + 24z = 2a+2b
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05/04/15

how many liters of a 30% alcohol solution must be mixed with 90 liters of a 90% solution to get a 70% solution?
 How many liters of a 30% alcohol solution must be mixed with 90 liters of a 90% solution to get a 70% solution?
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05/04/15

Volume of prisms
1-elaine wants to make a net for a triangular prism using index cards. how many triangles will she need?   2-Tina cut open a cube-shaped microwave box to see the net. how many square faces does... more
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05/04/15

A bised coin with Pr(?)=0.6 is tossed 85 times
 A bised coin with Pr(θ)=0.6 is tossed 85 times. Compute the expected number of times head comes up 
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05/04/15

how to simplify radical
attached i couldnt write out   http://assets.openstudy.com/updates/attachments/5547b51fe4b0868da1bf0432-nickymail48-1430762796293-jk.png
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05/04/15

word problem see below
A textbook store sold a combined total of 308 history and math textbooks in a week. The number of history textbooks sold was three times the number of math textbooks sold. How many textbooks of... more
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05/04/15

richard parker buys a new car for 15,000. the value of the car depriciates at about 16% each year. how much is the car worth after 5 years?
Richard parker buys a new car for 15,000. the value of the car depreciates at about 16% each year. how much is the car worth after 5 years
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