Answer:
A.)
Step-by-step explanation:
Try each choice to see which one works.
A.)
a_n = 4n + 10
a_5 = 4(5) + 10 = 30 
a_6 = 4(6) + 10 = 34
a_7 = 4(7) + 10 = 38
Answer: A.)
 
        
             
        
        
        
Answer: 170
Step-by-step explanation:
The formula for the area of a triangle is 1/2bh, where b is the base length, and h is the height. 
So- Essentially you’d just need to plug in the variables to solve this. the semicircle on the bottom serves to tell you the base length. 
1/2(20)(17)
170
 
        
             
        
        
        
Answer: 16.09 
Step-by-step explanation:
Because you need to add it says total that means add
 
        
             
        
        
        
Answer:
    a) The cost of ribeye steak dinners is $ 16.96.
    b) The cost of grilled salmon dinners is $ 23.37.
Explanation:
  Let the cost for ribeye steak dinners  be m and cost for grilled salmon dinners  be n.
  A waitress sold 10 ribeye steak dinners and 18 grilled salmon dinners, totaling $590.39 on a particular day.
 So, we have    
          10 m + 18 n = 590.39 -------equation 1
 Another day she sold 22 ribeye steak dinners and 9 grilled salmon dinners, totaling $583.49
 So, we have    
          22 m + 9 n = 583.49 -------equation 2
  equation 2 x 2
        44 m + 18 n = 1166.98 -------equation 3
  equation 3 - equation 1
         44 m + 18 n - (  10 m + 18 n ) = 1166.98 - 590.39
          m = 16.96 $
   Substituting in equation 1
         22 x 16.96 + 9 n = 583.49
           n = 23.37 $
    a) The cost of ribeye steak dinners is $ 16.96.
    b) The cost of grilled salmon dinners is $ 23.37.
 
        
             
        
        
        
Answer:
C. 
Step-by-step explanation:
Consider the expression 
First, note that

Find the discriminant

Now,

Write the factored form:
