05/12/15

five construction workers can complete roofing in 6 day. how long will it take three construction workers to do the same job?
Five construction can complete roofing an apartment in 6 days. How long will it take three construction workers to do the same job.
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05/10/15

Doubling Time
You deposit $2500 in an account that pays 7.5% annual interest, compounds quarterly. How long will it take for your balance to become $3000? Would a larger deposit increase by $500 in a shorter... more
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05/10/15

the sumnof twice a nunber and 5less than the number is the same difference between 17 and the number what is the number?
I need help solving this problem like the steps and all please help
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05/10/15

If f(x)= arctan x, g(x)=0.9x, and x is in radians, for how many values of x does f(x)=g(x)?
Given that arctan x= 0.9x how do you get an inverse tan of a variable that would give a result of 0.9 times the variable?
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05/09/15

Algebra Problem
Solve: 3y^2(4y^2 + y) - 2y^3(6y + 1) = 8
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05/09/15

Math Question Help
A Boston-based band plays some gigs throughout New England, and is trying to decide whether it makes more sense to rent a van for a day each time it gets a gig outside the Boston Area, or if it... more
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05/09/15

Math/Music Help
A solo artist performing as one of several acts has exactly one hour to be on stage. It takes him an average of 4 minutes, 30 seconds per song played, as well as 10 minutes to finish setting up,... more
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05/09/15

Fraction help
A band estimated that when a random ticket holder is invited on stage, there is a 1/4 chance that the person will be under 18 years old, and a 1/3 chance that the person will be over 30 years old.... more
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05/08/15

How long would it take to double your principle at an annual interest rate of 8% compounded continuously ?
I just really don't understand how to do this.
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05/08/15

the angle of parllex is found to be 1degree54miniuts if the diameter of the earth is about 1.276*10^7m estimate the distance of moon from earth.
question of physic. parllex meathod must be used.answer must be in meter.  
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05/07/15

help????????
Suppose you randomly select one T-shirt and one pair of pants from your closet. If 3 of the 12 T-shirts are blue and 4 of the 8 pair of pants are khakis, what is the probability that you wear a... more
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05/07/15

An inscribed circle of an equilateral triangle has radius of length 3. The ratio of the areas of the inscribed circle and the circumscribed circle is:
An inscribed circle of an equilateral triangle has radius of length 3. The ratio of the areas of the inscribed circle and the circumscribed circle is:   a) 1:2 b) 1:3 c) 2:5 d) 1:4 e) none of... more
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05/07/15

Two letters are chosen at random from the word GEESE and two are chosen at random from the word PLEASE. What is the probability that all four letters (cont.)
are E's or none of the letters is an E. answer 3/50   I have the correct answer for these events in Adding Probabilities, but I am a substitute teacher, my degree is in music. I need to help the... more
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05/07/15

What are the first ten terms of a sequence whose first term is -10 and whose common difference is -2?
Please, I need help ASAP!
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05/06/15

Please show me how to do this
Y3/-3xy2
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05/06/15

Two dice are rolled, what id the probability that the sum of the two numbers rolled is 5?
Algebra probability. 
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05/06/15

Two cards are drawn from a standard deck of cards. Find each probability: (See in the Description)
1. P(both kings or both face cards) ans. 11/221   2. P(both either red or a king) ans. 63/221   I have the correct answers for these events in Adding Probabilities, but I am a substitute... more
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05/06/15

show the derivatives of the quotient
The de?finitions of derivative of two functions f and g are given by:f' (x) = lim     f(x + Δx) - f (x) / Δx , g'(x) = lim   g(x + Δx) - g(x) / Δx           x->0                              ... more
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05/05/15

If you write the following expression
(x^-3 x^2 / x^3 x^-2)  as a single power of x then the exponent is
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05/05/15

Use the Laws of logarithms to rewrite the expression
log((x^3 y^8)/z^10) Alog(x)+Blog(y)+Clog(z)   A= B= C=
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05/05/15

What are the molecular formula of the compound?
an unknown liquid is composed of 5.57%H, 28.01% CL, and 66.42%C. The molecular mass found by mass spectrometry is 126.58 amu. What are the  molecular formula of the compound?
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05/05/15

when 50 percent of a number is added the result is 150
please help.
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05/05/15

Simplfy 21mm/7n
when i tried doing this i got 3mmn or 3m^2n  but the answers say it is 3m  how do I solve this? 
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05/04/15

Why are these true? Could you give me some examples?
- Two individuals with the same racial identity may have different ethnicities   - Two individuals with the same ethnic background may identify with different races
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05/04/15

A student in a lab adds 20.0 mL of 0.150M Al2(SO4)3 solution to 30.0 mL of 0.200M BaCl2 solution, a precipitate forms. Which is the limiting reactant?
Limiting reactant question
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