3 years ago

Hannah drove her car 318.4 km in 4 h. At this speed, how far can she expect to travel in 5.5 h?

1 answer:

3 0

If she drives 318.4 km for 4 hours, then if we divide 318.4 by 4 we get 79.6 km per hour.

79.5km per hour x 5.5 hours

=437.8 km

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Step-by-step explanation:

Given

$f(x) = x^2 + 3x - 5$

Required

Find f(x + h) - f(x)

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$f(x + h) = f(x) + f(h)$

So:

$f(x + h) - f(x) = f(x) + f(h) - f(x)$

Collect Like Terms

$f(x + h) - f(x) = f(x) - f(x)+ f(h)$

$f(x + h) - f(x) = f(h)$

Solving for f(h)

$f(h) = h^2 + 3h - 5$

So:

$f(x + h) - f(x) = h^2 + 3h - 5$

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