{[ promptMessage ]}

Bookmark it

{[ promptMessage ]}

Pre-Calculus Homework Solutions 155

Pre-Calculus Homework Solutions 155 - 19 Use the congruent...

Info icon This preview shows page 1. Sign up to view the full content.

View Full Document Right Arrow Icon
19. Use the congruent angles to write the corresponding vertices in order: ABE ACD . Write a proportion to find x . A A B C ¬ A A D E 10 10 x 2 ¬ 6.25 6.25 x 1 x 10 12 ¬ x 6.2 5 5 .25 10( x 5.25) ¬ ( x 12)(6.25) 10 x 52.5 ¬ 6.25 x 75 3.75 x 52.5 ¬ 75 3.75 x ¬ 22.5 x ¬ 6 BC x 2 6 2 or 8 ED x 1 6 1 or 5 The scale factor is A A B C AB AB BC 10 10 8 1 1 0 8 or 5 9 . 20. Use the congruent angles to write the corresponding vertices in order: RST EGF . Write a proportion to find x . R EF T ¬ G ST F 11 1 . 5 25 ¬ 1 x 0 15 x ¬ 11.25(10) 15 x ¬ 112.5 x ¬ 7.5 GF x 7.5 E SR G ¬ G ST F 2 E 0 G .7 ¬ 7 1 . 0 5 ( EG )(10) ¬ (20.7)(7.5) ( EG )(10) ¬ 155.25 EG ¬ 15.525 The scale factor is G ST F 7 1 . 0 5 or 4 3 . 21. Write proportions for finding side measures. 4 x ¬ 2.5(5) 4 x ¬ 12.5 x ¬ 3.125 4 y ¬ 3.125(5) 4 y ¬ 15.625 y ¬ 3.9 4 z ¬ 4(5) 4 z ¬ 20 z ¬ 5 4 w ¬ 5(5) 4 w ¬ 25 w ¬ 6.25 After both enlargements the dimensions were about 3.9 inches by 6.25 inches. 22. The enlargement process E can be represented by the equation E 5 4 5 4 x . 23. 5 4 5 4 2 1 5 6 24. Explore: Every millimeter represents 1 meter.
Image of page 1
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}

What students are saying

  • Left Quote Icon

    As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

    Student Picture

    Kiran Temple University Fox School of Business ‘17, Course Hero Intern

  • Left Quote Icon

    I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

    Student Picture

    Dana University of Pennsylvania ‘17, Course Hero Intern

  • Left Quote Icon

    The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

    Student Picture

    Jill Tulane University ‘16, Course Hero Intern