03/02/14

Z-score help
Your friend Zoey has a height with a z-score of -1.51. Will she qualify to work at the fire department. If the Standard dev. is 3.1 and Mean is 5ft 4 inches.    
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03/01/14

I dont understand this two questions i am terrible with word problems :(
1) In a pilot project,a rural township was was given recycling bins for separating and storing recyclable products.the cost in dollars for supply bins to p% of the population is... more
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03/01/14

Do I still have to pay for the first tutoring lesson if I am not satisfied with the tutor and would like to continue searching?
The transcation has already been made and I am wondering if I have to pay for the first lesson if I am not happy with the tutor and if I do not have to can I get my money back?
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03/01/14

Trig Identities help
Prove that 2sin(x) - cos(x)   can be written as asin(x-p)
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02/28/14

Success rate for a new hypothetical cancer treatment drug.
A new cancer treatment provides 50% success rate for patients with lung tumors. Lung tumors make up 10% of all cancer patients. What percentage of all cancer patients will this new drug work on?
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02/27/14

How do I solve this problem?
A checkerboard measures 12 inches by 12 inches. There are 8 squares to a side and the checker measures 1 inch in diameter. What is the probability that if someone threw a checker onto the board... more
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02/26/14

Provide an appropriate response
For f(x)= -9x+7, find f(x+h)
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02/26/14

Predicted Values Help!!!
I need help finding the predicted value.Find the best predicted value of y corresponding to the given value of x.^y The regression equation relating dexterity scores (x) and productivity scores (y)... more
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02/26/14

Solve the problem
The cost P, in dollars, to produce graphing calculators is given by the function C (X) = 53X + 2000, where X is the number of calculators produced. a) Identify the dependent and independent... more
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02/26/14

unit circle
Evaluate the six trigonometric function of real number  t=(4)(3.14)/3   2)Evaluate the sine, cosine and tangent of the real number t=(3)(3.14)/4   I got this to problems wrong can someone... more
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02/25/14

Solve the solution.
                                                                                                         kt The concentration of bacteria in a sample can be modeled by B(t) = B  e    , where t is... more
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02/25/14

Solve the solution.
Solve the solution.                                                                                                                       x-1992 A city's population P in thousands during year X... more
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02/25/14

the following equation cannot be solved symbolically. solve the equation graphically.
the following equation cannot be solved symbolically. solve the equation graphically.             x 4x + e   = 2   x = ?   (Round to the nearest hundredth as needed) 
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02/25/14

One of the points on a graph is (4,-2). The slope of that line is -2/3. What is the other point?
I really don't understand this. I need help!! I stink at algebra sometimes:/ but sometimes my brain works and I understand things but this confuses me. I swear we didn't learn this in class but... more
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02/24/14

Find a symbolic Representation for f ^-1(x)
Find a symbolic Representation for f ^-1(x)             √¯¯¯¯ f(x) =  x + 8
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02/23/14

PLEASE HELP!!!How Do i Solve a Piecewise Function?
Let C be the cost and N be the number of copies madeThen:        .12xN  for   0<N≤100C =  .09xN  for  100< N<500       .07xN  for   N≥500
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02/23/14

I dont know how to create and solve a piecewise function from a word problem
Your company has decided to distribute flyers advertising your new salsas. The local copy shop charges 0.12 per photocopy for 100 copies or less, then drops the price to 0.09 per copy, after the... more
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02/23/14

Solve the solution.
Solve the solution.   Suppose that $29,000 is deposited in an account and the balance increases to $31,258.64 after 1.5 years. how long will it take for the account to grow to $49,516.00? Assume... more
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02/23/14

aNEWLY COUPLE MADe a down payment og 11,000on a house. They still owe 96%
a newly couple  made a down payment  11,000 on a house they still owe 96% of the selling price. What was the selling price? please do the probl;em out so I can see how its done thank You
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02/23/14

Billy lays out a layer of blocks that is 8 by 3 blocks. then he plans to add 4 more layers just like the bottom layer. what is the volume of Billy`s blocks. He
This word problem is for math.
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02/23/14

simple interest
i need to make sure i set this up correct   nico is saving money for his college education, he invest some money at 6% and 1300 less than that amount at 5% the investment produced a total of 144... more
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02/22/14

determine the point at which the slope of the tangent to each parabola is zero
here the the equation of the parabola: y=6x^2 - 3x +4
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02/22/14

calculate the following complex numbers
(2+i)+(4+i)= (2+i)-(4+i)= (2+i)(4+i)= (2+i)/(4+i)= if z=2+i then ‾z= if z=2+i then |z|=
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02/21/14

calculate the following
calculate the following i2= i3= i4= i5= i70= i0= i-1= i-2= i-3= i-48=
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02/19/14

probabiliy question . help
5% of the population has X disease. A screening test accurately detects the disease for 80% of the people who actually do have it. The test also incorrectly indicates the disease for 30% of the... more
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