Question

7) (1,7+2) • 4;8) (5,3+1,4). 39) (6,15+3,5).5.​

Answer 1

Ответ:

решения и ответы на фото

Answer 2

Ответ:17,2 ×4=12,8 5,3+1,4=6,7 5,3+1,4×3=20,1 6,15+3,5=9,65 6,15+3,5×5

Пошаговое объяснение:

Answer 3

It seems like you've provided a series of mathematical expressions, but the formatting is a bit unclear. Let me try to clarify and solve each expression for you:

7. (1,7+2) • 4: (1.7 + 2) • 4 (1.7 + 2) • 4 = (3.7) • 4 = 14.8

8. (5,3+1,4): It's unclear how to interpret this expression. If you intended it to be addition: 5.3 + 1.4 = 6.7

9. (6,15+3,5).5: It's also unclear how to interpret this expression. If you intended it to be multiplication: (6.15 + 3.5) • 5 = (9.75) • 5 = 48.75

If you have any specific mathematical operations or additional context you'd like to provide for these expressions, please let me know, and I'll be happy to assist further.