3 years ago

Find the slope of the line through each pair of points.

1 answer:

8 0

You can use this formula: (y1 - y2) / (x1-x2)

For example, using question 5,

(-11-16)/ [-6-(-20)]
= -17/14

Given that it is a negative number, it would mean that the line is downward-sloping.

All the best!

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Answer:

D) L=50 W=50

Step-by-step explanation:

Just "plug and chug" these numbers and see which doesn't work.

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Tan^2 70° -sec^2 70°

kipiarov [429]

Answer:

-1

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We need to find the value of tan² 70° -sec² 70°.

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$\sec^2\theta-\tan^2\theta=1$ ...(1)

We can write the given expression as :

tan² 70° -sec² 70° = -(-tan² 70° +sec² 70°)

=-(sec² 70°-tan² 70°)

Using identity (1)

=-(1)

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Hence, the value of the given expression is -1.

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