Answer:
b=12 or b=−12
Step-by-step explanation:
Answer:
When you see a formula like this, try to operate, so you will see some identities sooner or later. In this case, we have a substraction identity:
\frac{cos ( \alpha - \beta )}{cos \alpha cos \beta } = \frac{cos \alpha cos \beta + sin \alpha sin \beta }{cos \alpha cos \beta } = 1 + tan α · tan β
Step-by-step explanation:
Answer:
8.944
Step-by-step explanation:
To find the missing Length, Use Pythagorean Theorem!





so it is approximately 10 but not quiet
hope this helps
Answer:
Step-by-step explanation:
we know that
The volume of a cylinder (water pipe) is equal to

In this problem we have
-----> the radius is half the diameter
----> convert to inches

Answer: 110
Step-by-step explanation:
11x20=220 220\2=110