9.A picture frame has a white mat surrounding the picture. The frame has a width of 27 cm and a length of 36 cm. The mat is 2 cm wider at the top and bottom than it is on the sides. The area of the mat is: A. -4x2+ 118x + 108C.-2x2+ 59x + 54D.5x2+ 80x + 92 B. 4x 2 + 120x + 104 Polynomials Practice Exam
10.The greatest common factor of πr2and πrs is: B. π rs 11.The factored form of -4x2+ 24x is: B. 4x(x - 6) 12.The factored form of -xy3- x2y2is: B. -xy(y + x) 13.The factored form of 5ax - 15a - 3x + 9 is: A. (x - 3)(5a + 3)C.(x + 3)(5a - 3)D.(x + 3)(5a + 3) B. (x - 3)(5a - 3) 14.A pencil can be thought of as a cylinder topped by a cone.A factored expression for the external surface area is: B. π r 2 (r + h + s) r r h s SA Cone = π r 2 + πrs SA Cylinder = 2 π r 2 + 2 πrh From Formula Sheet: Hint: The top of the cylinder (and the bottom of the cone) are internal to the pencil and do not contribute to the surface area. Polynomials Practice Exam
You've reached the end of your free preview.
Want to read all 8 pages?
- Winter '19
- jane smith
- math 10C, C Expanding Polynomials