a garage floor measures 150 feet by 120 feet , a scale drawing of the floor on grid paper uses a scale of 1 unit : 15 feet . wha
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5 10
12 x
Cross multiply = (10 × 12) / 5 = = 24 days
Answer:
a.
b.
Step-by-step explanation:
Remember that for any curve
The tangent vector is given by
And the normal vector is given by
a.
For this case, using the chain rule
And also remember that
Therefore
Similarly, using the quotient rule and the chain rule
And also
Therefore
Notice that
1.
2.
b.
Simlarly
and
Therefore
Then
and also
And since