3 years ago

Sarah traveled 145 miles in 2.5 hours. How fast was Sarah driving? Ma

Mathematics

1 answer:

Ad libitum [116K]3 years ago

6 0

Answer:

58 mph

Step-by-step explanation:

145/2.5=1450/25=58

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Step-by-step explanation:

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Step-by-step explanation:

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What is lim x→-3 sqrt x^2-8

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If the -8 is under the square root, then...

$\displaystyle L = \lim_{x\to -3} \sqrt{x^2-8}\\\\L = \sqrt{(-3)^2-8}\\\\L = \sqrt{9-8}\\\\L = \sqrt{1}\\\\L = 1\\\\$

If the -8 is not under the square root, then...

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Either way, we replace x with -3 and simplify.

For more information, refer to the direct substitution rule for limits.

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