The area of a room is 396 square feet. the length is (x + 8) feet and the width is (x + 4) feet. find the dimensions of the room. you only need to find the length and width.

Does the problem involve permutations or? combinations? do not solve. the matching section of an exam has 4 questions and 7 possible answers. in how many different ways can a student answer the 4 ? questions, if none of the answer choices can be? repeated?

X-intercept=-5 y-intercept=2 the equation of the line is

If cos(2x) = tan^2(y), show that cos(2y) = tan^2(x).