Suppose you can ride a bike with 22” wheels (in diameter) so that the wheels rotate 159 revolutions per minute
1 answer:
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Answer:
-1
Step-by-step explanation:
We need to find the value of tan² 70° -sec² 70°.
We know that,
...(1)
We can write the given expression as :
tan² 70° -sec² 70° = -(-tan² 70° +sec² 70°)
=-(sec² 70°-tan² 70°)
Using identity (1)
=-(1)
= -1
Hence, the value of the given expression is -1.
Answer:
Slope = 2.3 or 2
Step-by-step explanation:
First, to find the slope of the given coordinates (9,22) and (15,36), we must establish what will be our starting and endpoint.
Let's have (9,22) be our starting point.
And (15,36) be our endpoint.
First, what is the change in x?
The change in x is 6, because 9 + 6 = 15. (Δx = 6)
Second, what is the change in y?
The change in y is 14, because 22 + 14 = 36. (Δy = 14)
Now we can find the slope by dividing the change in y over the change in x or Δy/Δx:
= 2.3 or 2