Answer:
4
Step-by-step explanation:
Just PLug in the Values, and solve using PEMDAS.
Answers:
1)
2)
3)
4)
5)
Step-by-step explanation:
First exercise:
We have a right triangle with the values of each side an we have to find the following trigonometic functions (taking into account the secant function is the inverse of the cosine, the cosecant is the inverse of the sine):
1)
2)
Then:
3)
Then:
4)
Then:
Second exercise:
5) Here, we are given another right triangle and we have to find the measure of the angle .
So, according to the figure, we can use the tangent function:
Finding the value of :
The sum of the interior angles in a regular polygon is given by the formula 180<span>(n – 2), where n is the number of sides in the polygon. An octagon has </span>eight<span> sides, so the sum of the angles of the octagon is </span>180<span>(8 – 2) = </span>180(6<span>) = 1080 degrees. In other word your answer would be an octagon.
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Line the numbers up by place value. Regroup 12 into 1 ten and 2 ones. Add the 1 ten you regrouped. Because the 2 represents tens, the numbers will start in the tens column.
Hope this helps