Which of these expressions have positive values and which have negative values? Drag and drop each expression into the correct category.
Positive
Negative
7-(-4)
-3+(-2)
5-8
-10 +12

7-(-4)= Positive

-3+(-2)= Negative

5-8= Negative

-10 +12= Positive

Step-by-step explanation:

i leave the calculator work to you.

7. diameter 4 miles, circumference 4π miles

8. radius 0.2 miles, circumference 0.4π miles

[this is a bad problem because the actual radius of a car on the track is less than 0.2 miles so the answer is less than 0.4π miles]

9. radius 6 feet, circumference 12π feet

10. diameter 14 cm, circumference 14π cm

11. diameter 4.8 feet, circumference 4.8π feet