Students in a large college class took an exam and did poorly. the mean of the scores for the class was 51 (out of 100), and the standard deviation was 12. the professor felt that the test may have been too difficult and decided to adjust the scores. she multiplied each test score by 1.5 and then added 5 to get the adjusted score. in other words, to obtain the adjusted score y from the original score x, she used the transformation =y+1.5x5. what is the mean of the adjusted test scores? do not round your response. 2. what is the standard deviation of the adjusted test scores? do not round your response. x 6 ?

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)

3/4 = c/36 i need with this fraction proble.

Solve 30% of what = 60 step by step