. A substance experiences rapid changes in temperature over the course of an experiment to test its electrical conductivity.

At the start of the experiment the substance is measured to be 50°C, and by the end of the experiment, its temperature is measured as -60°C.

9a
How does the temperature change from the start to the end of the experiment?

Represent a decrease in temperature with a negative number

7. 153.86 ft

8. 12.56 ft

9. 78.5 m

10. 379.94 in

11. 132.665 m

12. 12.56 yd

13. 226.865 ft

14. 113.04 ft

15. 63.585 ft

16. 254.34 m

17. 50.24 cm

step-by-step explanation:

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0 is its x and y coordinate

56.6

step-by-step explanation:

the ratio of the perimeters is equal to the scale.

the ratio of the areas is equal to the square of the scale.

34 / 20 = k

a / 19.6 = k²

substituting:

a / 19.6 = (34 / 20)²

a = 19.6 (34 / 20)²

a ≈ 56.6

what are you trying to solve here

step-by-step explanation: