Six hundred seventy-eight million nine hundred eighty-five thousand four hundred eighty-eight. (I think)
        
             
        
        
        
Given: 
Irregular Shape: 
Semi-circle and rectangle:
Area of a rectangle = l * w
Area of a semi-circle = (π r²)/2
Area of rectangle = 8 cm * 5 cm = 40cm²
Area of a semi-circle = (3.14 (4²))/2 = (3.14*16)/2 = 50.24/2 = 25.12cm²
4² is taken from diameter of 8cm divided by 2 to get the radius.
Total area = 40 cm² + 25.12 cm² = 65.12 cm²
        
             
        
        
        
19 because 1 ten = 10 ones and 9 one plus 10 ones equals 19 altogether
        
             
        
        
        
Answer:
<u>The simplest radical form of this mathematical expression is - 3√3</u>
Step-by-step explanation:
1. Let's write in a mathematical expression the information given:
-4 the square root of 12 + the square root of 75
-4 (√12) + √75
-4 (√4 * 3) + (√25 * 3)  (12 = 4 * 3 and 75 = 25 * 3)
-4 (2 √3) + 5 √3 
-8 √3 + 5√3
- 3 √3
The result is- 3 square root of 3.
<u>The simplest radical form of this mathematical expression is - 3√3</u>
 
        
             
        
        
        
the answer is A
these are filler words so I can submit it haha