01/22/15

Which of the following is the average (arithmetic mean) of x2 - 10, 30 - x2, and 6x + 10?
I do not know how to set this up.
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01/22/15

on a special day, tickets for a minor league baseball game cost $5 for adults and $1 for students. The attendence that day was 1281 and $3425 was collected.
on a special day, tickets for a minor league baseball game cost $5 for adults and $1 for students. The attendence that day was 1281 and $3425 was collected. Write a system of equations to model... more
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01/22/15

solve equation exactly (real numbers if possible, leave in logarithmic form if not)
[(4x-4-x)⁄3]=2 
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01/22/15

SAT stlye math problem?
Let x Ω y be defined by x Ω y= (x-y)^2 for all values of x and y. If x Ω y= 2y Ω 3 and x= y-3, then which of the following could be the value of y?   A) -1 B) 1 C) 3 D) 4 E) 6
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01/22/15

Solve each equation exactly (answer as real #, or leave in log form)
Log3(5x+2)-log9(16x2)=3 
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01/22/15

PLEASE HELP ME
A store is having a sale on jelly beans and almonds. For 4 pounds of jelly beans and 8 pounds of almonds, the total cost is $33 . For 2 pounds of jelly beans and 3 pounds of almonds, the total cost... more
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01/22/15

PLEASE HELP I AM STUCK
Teresa will rent a car for the weekend. She can choose one of two plans. The first plan has an initial fee of $75 and costs an additional $0.10 per mile driven. The second plan has no initial fee... more
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01/22/15

What is the distance between points (9, 4) and (–3, 4) on a coordinate plane?
What is the distance between points (9, 4) and (–3, 4) on a coordinate plane?
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01/21/15

How much of the 30% solution should the chemist use?
A chemist is mixing a 30% salt solution with a 20% salt solution to make 40 L of a new solution that will contain 25% salt. How much of the 30% solution should the chemist use?
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01/21/15

The illumination provided by a car's headlight varies inversely as the square of the distance from the headlight
The illumination provided by a car's headlight varies inversely as the square of the distance from the headlight. A car's headlight produces an illumination of 3.75 (15/4) Foot-candles at a... more
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01/21/15

Urgent, The Fundamental Theorem of Calculus !
Use the Fundamental Theorem of Calculus to find the derivative of  f(x)= ∫ ((t^2/4)-1)^5 dt, upperbound-x^2, lowerbound= 4
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01/21/15

use induction to show that 1+3+5+...+(2n-1)=n2?
help ASAP
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01/20/15

A kite has a string of 200m long. The string makes an angle of 43 degrees with the ground. Determine the height of the kite
I don't know how to start(draw) this and whether I use Sine, Cosine, or Tangent 
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01/20/15

Bike rentals and maximum income
A rental store charges $32 per day to rent a bicycle. At this rate, the store rents about 200 bikes per month. The owner of the store estimates that they will rent 5 fewer bicycles for each $2... more
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01/20/15

ABC Corporation offered a four-for-one stock split. The number of outstanding shares before the split was 15,000, and the par value was $20 per share. After the
ABC Corporation offered a four-for-one stock split. The number of outstanding shares before the split was 15,000, and the par value was $20 per share. After the split, what was the par value and... more
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01/20/15

How many milliliters of 35% acid solution need to be added to60mL of 65% acid solution to get a solution that is45% acid?
How many milliliters of 35% acid solution need to be added to60mL of 65% acid solution to get a solution that is45% acid?
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01/20/15

[1/(secx+1)]+[1/(secx-1)] = -2cot^2x
Could someone please show me a step by step proof of this problem with all of the step details listed?
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01/20/15

Nick and Matt are he partners in a local health food store. They needed $73,000 to start the business. They invested in the ratio 3:7, Nick to Matt.
How much money did they each invest ?
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01/19/15

How to solve the system x-y+z=0 & 2y+3z=1 & x+2z=0
its a system of 3 equations and im having a hard time solving meaning theres a missing variable in 2 of them
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01/19/15

Sketch a graph of a function with the following properties:
degree=5, positive lead coefficient, real zeros= 4 and -3(with multiplicity of 2)   I know there can be various answers for drawing this graph since you can't find out the polynomial function... more
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01/19/15

Teller had $2,750 in ten dollar bills and five-dollar bills. He had twice as many ten dollar bills than five-dollar bills. How many of each bill does he have?
I need help with this problem.
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01/19/15

TanB+ cotB = secB cscB
It's proving identities ( often found in trigonometry of advanced functions)
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01/19/15

Given the linear equation 3x+12y=-15 write an equation that would create a system with no solution
i need help with this equestion because I have no idea What to do so can someone help me on this problem please 
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01/19/15

word problem
A scientist has two solutions, which she has labeled Solution A and Solution B. Each contains salt. She knows that Solution A is 60% salt and Solution B is 85% salt. She wants to obtain 130 ounces... more
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01/19/15

3x-4y=-4 x+3y=-10
Elimination using multiplication. 
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