MCAS 2000, 8th Grade Math, Questions 17-20
Click here for a PDF version of this set of questions. The PDF format
may offer a clearer version when you print these pages
(requires the free Adobe Acrobat Reader).
Your printer may also be able to print directly from the version which
is now appearing on your computer screen.
Question #17
The formula for the surface area (SA) of a cube is
SA = 6e2, where e is the length of an edge of the cube.
An edge of a red cube is twice as long as an edge of a blue cube. How many times greater is the surface area of the red cube than that of the blue cube?
A. 2 times greater
B. 4 times greater
C. 6 times greater
D. 12 times greater
Question #18
Which of the following measurements would most likely be given with a negative exponent in scientific notation?
A. the diameter of a blood cell in centimeters
B. the distance to the Sun in kilometers
C. the weight of a pencil in grams
D. the mass of a rocket in kilograms
Question #19
In the figure on the right, the perimeter of the equilateral triangle is 24 inches.
What is the area of the square?
A. 32 sq. in.
B. 64 sq. in.
C. 476 sq. in.
D. 12 sq. in.
Question #20
The Massachusetts Department of Employment and Training predicted that there will be 21% more jobs for computer programmers in Massachusetts in 2005 than there were in 1994. There were 15,970 programming jobs in 1994. Based on the prediction, about how many new jobs will be available by 2005?
A. 350
B. 750
C. 2,750
D. 3,350
Go to another week's questions
Return to AchievementInfo.Com Home Page