Answer:
c) 72
Step-by-step explanation:
- the function f(x)=7x+2 represents the number of cars that drive by in x minutes
- x = 10
- f(10) = 7×10+2 = 70+2 = 72
 
        
             
        
        
        
Answer:
Step-by-step explanation:
(-5,-3) is a point on the graph.
f⁻¹(-3) = -5
 
        
             
        
        
        
<h3>
Answer:  9/100</h3>
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Explanation:
There are 3 pink marbles out of 10 total (we can see that 2 yellow + 3 pink + 5 blue = 10 total) 
The fraction 3/10 represents the probability of pulling out a pink marble at random. Since the first one is put back, this means the fraction 3/10 stays the same on the second draw as well.
We use the idea mentioned in the hint to multiply the fractions:
(3/10)*(3/10) = (3*3)/(10*10) = 9/100
The probability of pulling two pink marbles in a row is 9/100, where the first marble is put back. 
Effectively, if you were given 100 tries at doing this, you should expect about 9 of those times you get 2 pink marbles in a row. 
 
        
        
        
Answer:
2³
Step-by-step explanation:
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