zahwaahmaf
31.08.2020 •
Mathematics
Please can someone help me solve the question in the picture 10 points plus brainliest!!!
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Ответ:
E. 2 1/2
E. 8.5 cm
C. 6 cm
Step-by-step explanation:
4
Scale factor = AE/AC = (4+6)/4 = 10/4 = 2.5
Correct option is E. 2 1/2
5
DE = ?
DE = √AD² - AE² = √15² - 10² = √125 = 5√3 ≈ 8.66For measure of AD see next question (6)Close option is E. 8.5 cm
6
AB = ?
AD/AB = 2.5 the scale factor as per question 4(AB + 9)/AB = 2.52.5*AB = AB + 91.5*AB = 9AB = 9/1.5AB = 6 cmCorrect option C. 6 cm
Ответ:
7. 19
8. 7
Step-by-step explanation:
A tally mark with and a \ through means 5. You have three of those plus (4), meaning you have 19.
Apply the same method to question 8.
Hope this helps. Have a nice day.