Alejandro simplified the expression 100 – [45 ÷ (15 – 10)] using the steps shown. 100 – [45 ÷ (15 – 10)] 100 – [3 – 10] 100 – [–7] 107 Which statement is true about Alejandro's work? He should have subtracted 7 instead of adding it. He should have subtracted 10 before dividing. He should have subtracted 45 before dividing. He did not make any errors.

Which of the following is the rational exponent expression of 6 root f

Which of the following would be a correct step in proving that triangle abc is congruent to triangle cda? a. use a protractor to measure the angles and show that all the corresponding angles are equal in measure. this will allow you to prove congruence by aaa. b. show that segment ab is parallel to segment cd and segment ad is parallel to segment cb. this will allow you to prove congruency by asa. c. show that is segment ab is perpendicular to segment ad. this will allow you to prove congruence by sas. d. none of the above.

20 points for the answer. this is for real , don't put random ! a rectangle has a length of 4 centimeters and a width of 7 centimeters. what is the effect on the perimeter when the dimensions are multiplied by 5? the perimeter is increased by a factor of 5. the perimeter is increased by a factor of 20. the perimeter is increased by a factor of 25. the perimeter is increased by a factor of 100.