What is the transformation of B(-4,8) when dilated by a scale factor of 2 using the origin as the center of dilation

Which will form a composite function?

The triangle shown has a hypotenuse with a length of 13 feet. the measure of angle a is 20 degrees. and the measure of angle b is 70 degrees. which of the following is closest to the length, in feet, of line segment ac? no need to use a calculator to find the trig numbers. each function is listed below. 4.4 5 12.2 35.7

What is the area of the shaded sector?