Answer:
Step-by-step explanation:
So we have the expression:
To multiply, distribute the left to the terms on the right:
Distribute:
Combine like terms:
Simplify:
Therefore:
Answer:
-7
Step-by-step explanation:
-3 - (4) = ?
Remove parentheses:
= -3 - 4
Subtract the numbers:
= -7
Use the Pyth. Thm. to calculate the length of MO:
6^2 + 8^2 = |MO| = 36 + 64 = 100. Therefore, |MO| = 10.