Laura wants to put down new carpet in her bedroom. She went to the store and they told her that the carpet she wants cost $4.50 per square foot. Or, she can buy carpet in rolls that have 100 square feet of carpet each and cost $400. Below is a model of Laura's bedroom. SHould she purchase the carpet by the square foot or in rolls of 100 square feet? Explain.

the sum of all the angles in a triangle are equal to 180

so you can add   the 3 given angles together to equal 180:

5y + 2y + 2y = 180

or since all three angles have the same letter, combine the 3 angles to equal 180:

9y = 180

the transverse axis of a hyperbola is the line that contains the two vertices and the two focuses.

in this example (hyperbola of equation x^2/2 - y^2/4 = 1), the transverse axis is the  x-axis  . 

step-by-step explanation: