Las razones de los lados de un triángulo rectángulo se llaman razones trigonométricas.
Espero te ayude :)
Answer:

Step-by-step explanation:
We want to calculate the right-endpoint approximation (the right Riemann sum) for the function:

On the interval [-1, 1] using five equal rectangles.
Find the width of each rectangle:

List the <em>x-</em>coordinates starting with -1 and ending with 1 with increments of 2/5:
-1, -3/5, -1/5, 1/5, 3/5, 1.
Since we are find the right-hand approximation, we use the five coordinates on the right.
Evaluate the function for each value. This is shown in the table below.
Each area of each rectangle is its area (the <em>y-</em>value) times its width, which is a constant 2/5. Hence, the approximation for the area under the curve of the function <em>f(x)</em> over the interval [-1, 1] using five equal rectangles is:

64838383848888477783839393
Answer:
1 out of 100
Step-by-step explanation:
99 out of 100 people are NOT left-handed, that means they are right handed. 100-99=1
3days=3chapters so he would have to read for 8 days