Answer:
3 miles per hour.
Step-by-step explanation:
To get his walking rate in miles per hour, we multiply 1/5 by its reciprocal, 5/1. We also multiply 6/10 by 5/1. This gets us 30/10 of a mile in an hour. We can simplify 30/10 to 3. This means he walks at 3 miles per hour.
Think about it this way: which numbers are perfect squares? The square root of 4 is two, the square root of 49 is 7, and the square root of 64 is 8. That only leaves B.
I hope this helps. Let me know if you need a further explanation.
Answer:
6.397 × 10^9
Step-by-step explanation:
Answer:
530.66 cm^2.
Step-by-step explanation:
Area = 3.14 *r^2
= 3.14 * 13^2
= 530.66 cm^2
Answer:
It's A and C, 6x6x6 and 18
