Which method is used to display a message in Android?

Android Application Package (APK) is a file format used for and installation of Android apps.

Which method is called when an Android app starts?

Solve the inequality. Show all work on scratch paper.x2 – 7x – 8 ≤ 0

Find the exact value under the given conditions. Show all work on scratch paper. sin α = , 0 < α < ; cos β = , 0 < β < Find cos (α + β).  

If A denotes the area of the sector of a circle of radius r formed by the central angle θ, find the missing quantity. If necessary, round the answer to two decimal places. Show all work on scratch paper.r = 39.7 centimeters, θ = radians, A = ?

Find the first term, the common difference, and give a recursive formula for the arithmetic sequence. Show all work on scratch paper.7th term is 31; 16th term is -50

Use the information given about the angle θ, 0 ≤ θ ≤ 2π, to find the exact value of the indicated trigonometric function. Show all work on scratch paper. sec θ = 4, 0 < θ < Find cos .  

Convert the angle in degrees to radians. Express the answer as multiple of π. Show all work on scratch paper.36°

Simplify the expression. Show all work on scratch paper. + tan θ