2 years ago

HELPPPPPPPPPPPPPPPPPPPPPPP T^T PLEASE ANSWER!!!!

Mathematics

1 answer:

likoan [24]2 years ago

5 0

Answer:

7 miles per hour.

Step-by-step explanation:

Right now, the relationship in the problem represents 3 $\frac{1}{2}$ miles in hours. To find out what the unit rate is (number of miles per mile), we need to multiply both sides of the equation show BeLoW:

3 $\frac{1}{2}$ = $\frac{1}{2}$

7 miles = 1 hour

Therefore, Doug's average speed in miles per hour is 7 (7 miles per hour).

:3))

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How to evaluate the limit

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$\displaystyle\lim_{x\to2}\frac{x^2-x+6}{x+2}$

Both the numerator and denominator are continuous at $x=2$ , which means the quotient rule for limits applies:

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Perhaps you meant to write that $x\to-2$ instead? In that case, you would have

$\displaystyle\lim_{x\to-2}\frac{x^2-x+6}{x+2}=\lim_{x\to-2}\frac{(x+2)(x-3)}{x+2}=\lim_{x\to-2}(x-3)=-2-3=-5$