The answer is A) 59
9/5(15)+32 =59
        
                    
             
        
        
        
Answer:
The equation of the line in point slope form is equal to

Step-by-step explanation:
The picture of the question in the attached figure
step 1
Find the slope
The formula to calculate the slope between two points is equal to

we have
(-2,-2) and (2,2)
substitute the values

step 2
Find the equation of the line in point slope form

we have

substitute the values in the formula

 
        
             
        
        
        
We have to represent the fraction  in two different ways.
 in two different ways.
Let us multiply the numerator and denominator of the given fraction by '2'.
Therefore, 
Therefore,  is the first way to represent the given fraction.
 is the first way to represent the given fraction.
Now, Let us multiply the numerator and denominator of the given fraction by '3'.
Therefore, 
Therefore,  is the second way to represent the given fraction.
 is the second way to represent the given fraction.
Therefore,   and
 and   are the different ways to represent the fraction
 are the different ways to represent the fraction  .
.
 
        
             
        
        
        
HAPPY NEW YEAR:)
not only today
always be fun and creative
 
        
                    
             
        
        
        
Answer:
Amount of Niobium-91 initially
= 300/91 =3.2967mol
2040 years = 3 ×680 = 3 half-lives
therefore, amount left = 0.4121mol
mass of Niobium-91 remaining = 0.4121 ×91 =37.5g
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