Answer:
B: y = − (x − 3)² + 2
Step-by-step explanation:
You can check this using a graphing calculator, but it has a vertex of (3,2)
 
        
             
        
        
        
3x+5x/4≤34
leat common multiple=4
12x+5x≤136
17x≤136
x≤136/17
x≤8
Answer: x≤8        or            (-∞,8]
        
             
        
        
        
Answer:
x = 3
Step-by-step explanation:

56  is not equal to 30
 
        
                    
             
        
        
        
Answer:
12
Step-by-step explanation:
A 2 - sided counter ; (red, yellow)
A spinner (1,2,3,4,5,6)
Number of trials = 80
P(red and number > 3) :
P(red) = 1/2 ; 
P(number >3) : numbers greater Than 3 = (4, 5, 6)
Hence, P(number <3) = 3 /6 = 1/2
Theoretical probability = 1/2 *1/2 = 1/4
Expected number of outcomes :
1/4 * number of trials 
1/4 * 80 = 20
Experimental outcome :
Relative frequency = number of outcomes / number of trials 
Relative frequency = 2/5 
Hence, 
2/5 = number of outcomes / 80
Cross multiply :
160 = number of outcomes * 5 
Number of outcomes = 160 /5 = 32 
Actual outcomes = 32 
Difference between actual and expected :
32 - 20 = 12