Answer:
5.6 * 10^5
Step-by-step explanation:
If 5 is your number, the power of 10 has to be how many digits come after it. 5<u>60000</u>. Five digits come after, making that your power of 10.
These numbers would be -5 & 6...
(-5)(6) = -30
-5 + 6 = 1
6 is in the ten millions place. The number next to 6 is 1, which is less than 5, so you round down. The nearest 10 million is 60,000,000.
You can verify this by plugging the numbers into the Pythagorean theorem,

, where c is the hypotenuse (the longest side, in this case 53).
So it would be:

The equation is true.
2809 = 2809
Answer:
n+7
Step-by-step explanation:
Sum means add, so it's just n added to 7:
n+7 :)