Algebra 1--Please, help me!

1. Jeffs builds model train layouts. He has $75 to spend on packages of miniature landscape items. He receives 6 free packages with each order. The number of packages y that Jeff can buy is given by y = 75/x + 6, where x represents the cost of each package in dollars. Describe the reasonable domain values and graph the functions.

A: Both the number of packages and the cost of each package in dollars will be nonnegative, so the nonnegative vlaues are reasonable for the domain and range.

Graph: ?


2. Suppose a cone and a cylinder have the same radius and that the slant height l of the cone is the same as the height h of the cylinder. Find the ratio of the cone's surface area to the cylinder's surface area.

Area of cone: S = πrl + πr^2

Area of cylinder: S = 2πrh + 2πr^2

  1. 👍 0
  2. 👎 0
  3. 👁 82
  1. 2.

    conearea/cylinder area= (rl+r^2)/(rh+r^2)=

    (l+r)/(h+r)

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