Una ONG tiene la finalidad de mejorar las condiciones de salud de personas en estado de pobreza. Si todos los meses se incorporan 5 personas y al final del primer mes hay 125 voluntarios, ¿cuántas personas trabajaran como voluntarios en la ONG al cabo de 2 años y medio?

Step-by-step explanation:

Givens

These problem models a arithmetic sequence, where the difference is 5 and the first term is 125.

Notice that 2 and a half year are equivalent to 18 months. That means we need to find the 18th term,

A arithmetic sequence is defined as

Where , and .

Therefore, after two and a half years, there would be 210 volunteers.

2.2°  

step-by-step explanation:

let θ = the angle of elevation.

tanθ =77/2020

tanθ = 0.038 12

      θ = tan⁻¹0.038 12

      θ = 2.2°

1 1/7 hope i

step-by-step explanation:

8/7 = (1 * 7 + 1) / 7 = 1 + 1/7 = 1 1/7