First you solve for the area of the unshaded triangle. Use the formula of area of triangle which is 1/2bh to find. 1/2(9)(4) = 18 cm^2. The area of the unshaded triangle is 18cm^2. Now we need to find the area of the rectangle. We can find that by using the formula for area of rectangle which is (b)(h). 12*4 = 48 cm ^2. Now that we have the area of the triangle and the area of the rectangle, we just need to subtract the area of the triangle from the area of the rectangle to get the area of the shaded region. 48 cm^2 - 18 cm^2 = 30 cm^2.
So our answer is: The area of the shaded region is 30 cm^2. In this case it’s option C or the third option for your quiz.
        
             
        
        
        
Answer:
all u have to do is find the second difference 
 
        
             
        
        
        
Answer:
 your answer will be 11 for that question
 
        
             
        
        
        
V = a * b * c 
a,b,c- lengths of sides 
in here a=b=c=5cm 
V=5*5*5 = 125 cm^3
or 
V=a^3 = 5^3 =125 cm^3
        
             
        
        
        
Answer: 44
solution: x+(x+2)+(x+4)+(x+6)+(x+8)=200
5x+20=200
5x=180
x=36
5th number - x+8=36+8=44