Answer:
139
Step-by-step explanation:
First we need to find diameter 132/3.14=42 rounded
Then we halve it to find radius 42/2=21
Formula for area is radius x radius x 3.14
21 x 21 = 441 x 3.14 = 138.74 round up is 139
Answer:
= −
1
3
1
Step-by-step explanation:
No real solutions because the discriminant is negative
The square root of a negative number is not a real number
Answer:
32.25 minutes
Step-by-step explanation:
2 feet: 1 second
4230 feet: 2115 seconds
2115 as a minute is 32.25 minutes
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