Answer:
The answer is 4x+10y=1 :)
Step-by-step explanation:
<h2>
1080°</h2><h2>
</h2>
basically, the sum of all of the internal angles will be 1080
when you add all interior angles in an octagon you should get 1080
hope that helps !
Answer:

Step-by-step explanation:
We want to write the trignometric expression:

As an algebraic equation.
First, we can focus on the inner expression. Let θ equal the expression:

Take the secant of both sides:

Since secant is the ratio of the hypotenuse side to the adjacent side, this means that the opposite side is:

By substitutition:

Using an double-angle identity:

We know that the opposite side is √(u² -100), the adjacent side is 10, and the hypotenuse is u. Therefore:

Simplify. Therefore:

Slot method
8 optionns n 1st slot
7 options in 2nd slot (since 1 is at 1st slot)
6 options in 3rd slot
5 options in 4th slot
8*7*6*5=1680 ways
Hi will read 1,400 pages each day if he reads the book