Sunday
December 8, 2013

# Posts by janet

Total # Posts: 317

Calculus
The area bounded between the line y=x+4 and the quadratic function y=(x^2)-2x. Hint: Draw the region and find the intersection of the two graphs. Add and subtract areas until the appropriate area is found. I found the intersection points as (-1,3) and (4,8). I'm not sure w...

Calculus
Thanks.

Calculus
Find the limit. lim x-->1 (x^3)-1/((5x^2)+2x-7) Please show steps.

calculus
Quadratic function written in standard form where a, b, and c are constants such that a is not zero. f(x)= ax^2+bx+c Using calculus find the vertex of the parabola formed by this quadratic function. Determine under what conditions this vertex is a maximum or minumum (using Cal...

math
Suppose a state lottery prize of \$2 million is to be paid in 20 payments of \$100,000 each at the end of each of the next 20 years. If money is worth 9%, compounded annually, what is the present value of the prize?

Algebra
Use the five steps for problem solving to answer the following question. Show all work. Andrew is having an irrigation system installed in his yard. Company A charges \$1250 plus \$15 per sprinkler head. Company B charges \$1200 plus \$17 per sprinkler head. How many sprinkler hea...

Carry on with the problem.. To find maximum profit, not revenue, would I take the derivative of the profit function, which I have as Profit=125*(12L+29L^2-1.1^3)-7000L. If I take the derivative of this(which I'm not sure I did right) my L=16.78 or .79. If I plug it back in...