Point by point, a dilation transforms the circle x2−6x+y2−8y = −24 onto the circle 9x 2−14x+y2−4y = −44. the circles have two common external tangent lines, which meet at the dilation center. find the size of the angle formed by these lines, and write an equation for each line.

If you had $1,900,000, how many days would it take you to spend all if you spent $1 a second. (there are 86,400 seconds in a day)

Atotal of 766 tickets were sold for the school play. they were either adult tickets or student tickets. there were 66 more student tickets sold than adult tickets. how many adult tickets were sold?

The construction of copying qpr is started below. the next step is to set the width of the compass to the length of ab. how does this step ensure that a new angle will be congruent to the original angle? by using compass take the measures of angle and draw the same arc according to it.