Square root 75 = square root 25 × square root 5 = 5 square root 5
Answer:
Do not listen to the other answer! Here is how you solve that.
Step-by-step explanation:
For the semicircle, here is the formula for area: 
For the triangle, here is the formula for area:
Then, add.
So,
Triangle:


Semicircle:


Your answer is 
Answer:
C
Step-by-step explanation:
Answer: all real numbers
Step-by-step explanation:
the domain for any function is always, all real numbers or in other words, negative infinity to positive infinity.