Manifest file is optional in Android app development.

What is the purpose of an Android layout file?

What is the purpose of an Android resource file?

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

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 domain of the rational function. Show all work on scratch paper.R(x) =

Solve the inequality. Show all work on scratch paper. < 5

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).  

Find the sum of the arithmetic sequence. Show all work on scratch paper.2 + 4 + 6 + … + 350

Solve the problem.Two points A and B are on opposite sides of a building. A surveyor selects a third point C to place a transit. Point C is 45 feet from point A and 73 feet from point B. The angle ACB is 53°. How far apart are points A and B? Show all work on scratch paper.