Assume that you wish to draw an ellipse with a semi-major axis of a=20 cm and e= 0.5. using what you have learned earlier in this lab, what would be the appropriate distance for a) the separation of the thumbtacks and b) the length of the string? fully explain how you determine these values

To solve this system of equations by elimination, what operation could be used to eliminate the y-variable and find the value of x? 6x + 5y = 2 4x + 2y = 8 a) subtract 2 times the second equation from 3 times the first equation b) subtract 3 times the second equation from 2 times the first equation c) subtract 5 times the second equation from 2 times the first equation d) subtract 2 times the second equation from 5 times the first equation