From statitics grades, john has a mean of 70 and sx of 15, jane has a mean of 70 and sx of 5

Δabc is dilated by a scale factor of 3 with the origin as the center of dilation to form δa′b′c′. the slope of is -1.2. the length of is p units, the length of is q units, and the length of is r units. the slope of is . the length of is units.

Which expression is the factorization of x^2+10+21

Quadrilateral abcd is translated up and to the right, and then rotated about point q. which congruency statement is correct?