Answer:
Step-by-step explanation:
1) Rewrite 
in the form
, where a = y and b = 1.
2) Use Square of Difference: 
.
3) Factor 
.
1 - Ask: Which two numbers add up to 6 and multiply to -7?
-1 and 7
2 - Rewrite the expression using the above.
Outcome/Result: 
4) Rewrite the expression with a common denominator.
5) Expand.
6) Collect like terms.
7) Simplify 
to 
Answer:
the original price would be <u>16.605.</u>
Step-by-step explanation:
Answer: Then the graph of the function f(x) will change shifting vertically down (because the negative sign in 4) by 4 tons.
Option c. The line will shift vertically down by 4 tons.
Solution:
Total weight of a coal car: f(x)=x+30
How will the graph of this function change if the coal car weight is changed to 26 tons?
The total weight of the coal car would be: g(x)=x+26
f(x)=x+30
30=26+4
f(x)=x+26+4
g(x)=x+26
f(x)=g(x)+4
Subtracting 4 both sides of the equation:
f(x)-4=g(x)+4-4
f(x)-4=g(x)
g(x)=f(x)-4
Then the graph of the function f(x) will change shifting vertically down (because the negative sign in 4) by 4 tons.
Answer: spencer left after 14 days
Step-by-step explanation:
