19. Real estate redux. The regression of Price on Size of homes in Albuquerque had R2 = 71.4%, as described in
Exercise 15.
a) What is the correlation between Size and Price?
Explain why you chose the sign (+ or -) you did.
b) What would you predict about the Price of a home 1
standard deviation above average in Size?
c) What would you predict about the Price of a home 2
standard deviations below average in Size?

The first hexagon is dilated to form the second hexagon select the answers from the drop box menus to correctly complete the statement

Combine like terms to make a simpler expression 3z+z

In δabc shown below, ∠bac is congruent to ∠bca: triangle abc, where angles a and c are congruent given: base ∠bac and ∠acb are congruent. prove: δabc is an isosceles triangle. when completed (fill in the blanks), the following paragraph proves that line segment ab is congruent to line segment bc making δabc an isosceles triangle. (4 points) construct a perpendicular bisector from point b to line segment ac . label the point of intersection between this perpendicular bisector and line segment ac as point d: m∠bda and m∠bdc is 90° by the definition of a perpendicular bisector. ∠bda is congruent to ∠bdc by the definition of congruent angles. line segment ad is congruent to line segment dc by by the definition of a perpendicular bisector. δbad is congruent to δbcd by the line segment ab is congruent to line segment bc because consequently, δabc is isosceles by definition of an isosceles triangle. 1. corresponding parts of congruent triangles are congruent (cpctc) 2. the definition of a perpendicular bisector 1. the definition of a perpendicular bisector 2. the definition of congruent angles 1. the definition of congruent angles 2. the definition of a perpendicular bisector 1. angle-side-angle (asa) postulate 2. corresponding parts of congruent triangles are congruent (cpctc)