Answer:
45
Step-by-step explanation:
1/2×9×10
since the formula says half base times height, so therefore
Area =45
The plus sign means that we have to sum all the terms inside of the second parenthesis, while the minus sign means that we have to change all the signs inside the last parenthesis:

Now we only have to gather all like terms:

Answer:
f(x) ≤ -5
Step-by-step explanation:
Answer:
Jajkmama
Step-by-step explanation:
Two vertical angles are formed. These angles are also equal to each other.