The total interest earned on the 2000 at the end of

Info icon This preview shows pages 7–10. Sign up to view the full content.

View Full Document Right Arrow Icon
The total interest earned on the $2,000 at the end of the year was $155. How much was invested at each rate? (14 points)
Image of page 7

Info icon This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
Form A Page 8 of 8 8. An open-topped box is to be made from a 33-inch by 33-inch sheet of aluminum by cutting out x -inch squares from each corner and folding up the sides. What size square should be cut out in order to produce a box of maximum volume? (Round your answer to 1 decimal place.) (14 points) x x
Image of page 8
Some useful formulas: log ( uw ) = log ( u ) + log ( w ) log ( u c ) = c log ( u ) A = P (1 + r ) t A = P · e rt A = P (1 + r n ) nt f ( x ) = P · a x d = ( x 1 - x 2 ) 2 + ( y 1 - y 2 ) 2 Area s = θ 360 ( π · r 2 ) cos 2 θ + sin 2 θ = 1 a sin A = b sin B = c sin C a 2 = b 2 + c 2 - 2 bc cos A
Image of page 9

Info icon This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
For every point ( x, y ) which is in the first quadrant and is on the graph of y = 11 - x 2 , consider the triangle with corners (0 , 0) , ( x, 0) , and ( x, y ) . For which value of x does this triangle have maximum area? (Round your answer to 2 decimal places.) (x, y) y x (0, 0) (x, 0)
Image of page 10
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}

What students are saying

  • Left Quote Icon

    As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

    Student Picture

    Kiran Temple University Fox School of Business ‘17, Course Hero Intern

  • Left Quote Icon

    I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

    Student Picture

    Dana University of Pennsylvania ‘17, Course Hero Intern

  • Left Quote Icon

    The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

    Student Picture

    Jill Tulane University ‘16, Course Hero Intern