In △ABC, A=25∘, a=20 and c=15. Which of these statements best describes the triangle? Select the correct answer below:
△ABC is acute.

△ABC is obtuse.

△ABC can be either acute or obtuse.

△ABC is a right triangle.

△ABC cannot be constructed.

Which of the following answers is 7/9 simplified? 7/9 2/9 11/9 2/7

Angela took a general public aptitude test and scored in the 88th percentile for aptitude in accounting. what percentage of the scores were at or below her score?

The edge of a cube was found to be 30 cm with a possible error in measurement of 0.4 cm. use differentials to estimate the maximum possible error, relative error, and percentage error in computing the volume of the cube and the surface area of the cube. (round your answers to four decimal places.) (a) the volume of the cube maximum possible error cm3 relative error percentage error % (b) the surface area of the cube maximum possible error cm2 relative error percentage error %